djvu | 528f4b8565a6941bcd72f1f90af1034fe4b93e401609bde90437fba1a3227e2b

Analysis

max time kernel
54s
max time network
147s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
16-09-2022 18:48

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General

Target

file.exe
Size

821KB
MD5

eab9ded288ae44356d1063e5898748d3
SHA1

4345b26ac78f3eb0ef37e387e91e6ab55a0ef9c2
SHA256

528f4b8565a6941bcd72f1f90af1034fe4b93e401609bde90437fba1a3227e2b
SHA512

3156c48b49eb9fd8211725fac62cb6a45d0dbc7085dab540348844c52c0d686351a1742d6642b51abdb28f2dd0591dee82a43215a9df0438a4319d791b489c53
SSDEEP

12288:Ja/k3ctBqrBJ80KndOTI6dFthB3htYuYt6yQwqAYQ6+wQhsTWV4Ng4a6i:JpcjaKn0MW/3Y1t6yvwbNHi

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://acacaca.org/test3/get.php

Attributes

extension
.aamv
offline_id
MyudhIExJux2oRQXw95TT1oAPu7mvqRMzxr1eet1
payload_url
http://rgyui.top/dl/build2.exe

http://acacaca.org/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-4Xcf4IX21n Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0564Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 10 IoCs

resource	yara_rule
behavioral1/memory/1932-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1932-56-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1764-60-0x0000000000800000-0x000000000091B000-memory.dmp	family_djvu
behavioral1/memory/1932-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1932-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1932-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1684-69-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1684-73-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1684-74-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1684-100-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
1624	build2.exe
1352	build3.exe
776	build2.exe
1652	mstsca.exe

Loads dropped DLL 4 IoCs

pid	Process
1684	file.exe
1684	file.exe
1684	file.exe
1684	file.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
268	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7aa58a9d-ab17-47db-8c5b-50b288e14eba\\file.exe\" --AutoStart"	file.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
12	api.2ip.ua

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1764 set thread context of 1932	1764	file.exe	28
PID 936 set thread context of 1684	936	file.exe	33
PID 1624 set thread context of 776	1624	build2.exe	36

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
628	schtasks.exe
676	schtasks.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	file.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 0f00000001000000140000003e8e6487f8fd27d322a269a71edaac5d57811286090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b0601050507030853000000010000002600000030243022060c2b06010401b231010201050130123010060a2b0601040182373c0101030200c00b00000001000000180000004300b7004f00b7004d00b7004f00b7004400b7004f000000140000000100000014000000a0110a233e96f107ece2af29ef82a57fd030a4b41d00000001000000100000002e0d6875874a44c820912e85e964cfdb030000000100000014000000d1eb23a46d17d68fd92564c2f1f1601764d8e349200000000100000036040000308204323082031aa003020102020101300d06092a864886f70d0101050500307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c18414141204365727469666963617465205365727669636573301e170d3034303130313030303030305a170d3238313233313233353935395a307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c1841414120436572746966696361746520536572766963657330820122300d06092a864886f70d01010105000382010f003082010a0282010100be409df46ee1ea76871c4d45448ebe46c883069dc12afe181f8ee402faf3ab5d508a16310b9a06d0c57022cd492d5463ccb66e68460b53eacb4c24c0bc724eeaf115aef4549a120ac37ab23360e2da8955f32258f3dedccfef8386a28c944f9f68f29890468427c776bfe3cc352c8b5e07646582c048b0a891f9619f762050a891c766b5eb78620356f08a1a13ea31a31ea099fd38f6f62732586f07f56bb8fb142bafb7aaccd6635f738cda0599a838a8cb17783651ace99ef4783a8dcf0fd942e2980cab2f9f0e01deef9f9949f12ddfac744d1b98b547c5e529d1f99018c7629cbe83c7267b3e8a25c7c0dd9de6356810209d8fd8ded2c3849c0d5ee82fc90203010001a381c03081bd301d0603551d0e04160414a0110a233e96f107ece2af29ef82a57fd030a4b4300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff307b0603551d1f047430723038a036a0348632687474703a2f2f63726c2e636f6d6f646f63612e636f6d2f414141436572746966696361746553657276696365732e63726c3036a034a0328630687474703a2f2f63726c2e636f6d6f646f2e6e65742f414141436572746966696361746553657276696365732e63726c300d06092a864886f70d010105050003820101000856fc02f09be8ffa4fad67bc64480ce4fc4c5f60058cca6b6bc1449680476e8e6ee5dec020f60d68d50184f264e01e3e6b0a5eebfbc745441bffdfc12b8c74f5af48960057f60b7054af3f6f1c2bfc4b97486b62d7d6bccd2f346dd2fc6e06ac3c334032c7d96dd5ac20ea70a99c1058bab0c2ff35c3acf6c37550987de53406c58effcb6ab656e04f61bdc3ce05a15c69ed9f15948302165036cece92173ec9b03a1e037ada015188ffaba02cea72ca910132cd4e50826ab229760f8905e74d4a29a53bdf2a968e0a26ec2d76cb1a30f9ebfeb68e756f2aef2e32b383a0981b56b85d7be2ded3f1ab7b263e2f5622c82d46a004150f139839f95e93696986e	file.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	file.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	file.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	file.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1932	file.exe
1932	file.exe
1684	file.exe
1684	file.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1764 wrote to memory of 1932	1764	file.exe	28
PID 1932 wrote to memory of 268	1932	file.exe	31
PID 1932 wrote to memory of 268	1932	file.exe	31
PID 1932 wrote to memory of 268	1932	file.exe	31
PID 1932 wrote to memory of 268	1932	file.exe	31
PID 1932 wrote to memory of 936	1932	file.exe	32
PID 1932 wrote to memory of 936	1932	file.exe	32
PID 1932 wrote to memory of 936	1932	file.exe	32
PID 1932 wrote to memory of 936	1932	file.exe	32
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 936 wrote to memory of 1684	936	file.exe	33
PID 1684 wrote to memory of 1624	1684	file.exe	34
PID 1684 wrote to memory of 1624	1684	file.exe	34
PID 1684 wrote to memory of 1624	1684	file.exe	34
PID 1684 wrote to memory of 1624	1684	file.exe	34
PID 1684 wrote to memory of 1352	1684	file.exe	35
PID 1684 wrote to memory of 1352	1684	file.exe	35
PID 1684 wrote to memory of 1352	1684	file.exe	35
PID 1684 wrote to memory of 1352	1684	file.exe	35
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1624 wrote to memory of 776	1624	build2.exe	36
PID 1352 wrote to memory of 628	1352	build3.exe	38
PID 1352 wrote to memory of 628	1352	build3.exe	38
PID 1352 wrote to memory of 628	1352	build3.exe	38
PID 1352 wrote to memory of 628	1352	build3.exe	38
PID 1596 wrote to memory of 1652	1596	taskeng.exe	41
PID 1596 wrote to memory of 1652	1596	taskeng.exe	41
PID 1596 wrote to memory of 1652	1596	taskeng.exe	41
PID 1596 wrote to memory of 1652	1596	taskeng.exe	41
PID 1652 wrote to memory of 676	1652	mstsca.exe	42
PID 1652 wrote to memory of 676	1652	mstsca.exe	42
PID 1652 wrote to memory of 676	1652	mstsca.exe	42
PID 1652 wrote to memory of 676	1652	mstsca.exe	42

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1932
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\7aa58a9d-ab17-47db-8c5b-50b288e14eba" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:268
- - C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:936
  - - C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1684
    - - C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe
        
        "C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1624
      - C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe
        
        "C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe"
        6⤵
        Executes dropped EXE
        
        PID:776
    - - C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build3.exe
        
        "C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1352
      - C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        6⤵
        Creates scheduled task(s)
        
        PID:628

C:\Windows\system32\taskeng.exe
taskeng.exe {B3D08981-6151-4A81-8F36-FCF3C23305D1} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1652
- - C:\Windows\SysWOW64\schtasks.exe
    /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
    3⤵
    - Creates scheduled task(s)
    PID:676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

Filesize
2KB

MD5
ea3ead1b160922fb25b1b9d766a56fa5

SHA1
9f61cb0a5a80fa5ba776f71fed4728d002d3aca1

SHA256
4080213fba647d43c0ac02710ac7b631c23f8f791930016045cda9aeec1b6867

SHA512
ec817bdc668bff4c266ca8b6a6c4068251926714262a95f9ac7f7565e2d66a26371589182d0ba1d03fa482d99430b865cb7eb24becf92b72e45f20b26a215c15

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
60KB

MD5
6c6a24456559f305308cb1fb6c5486b3

SHA1
3273ac27d78572f16c3316732b9756ebc22cb6ed

SHA256
efc3c579bd619ceab040c4b8c1b821b2d82c64fddd9e80a00ec0d7f6577ed973

SHA512
587d4a9175a6aa82cd8bb1c11ca6508f95cd218f76ac322ddbd1bc7146a0e25f8937ee426a6fb0fb0bb045cedb24d8c8a9edfe9f654112f293d8701220f726b4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

Filesize
1KB

MD5
e9e482bf825221326b7c080ef52e5036

SHA1
67244c170dad567630298f89364a5e9626e2517a

SHA256
60843d5086f10e833ca98696967f1a39ea04a2ffee6d87679b5803092b9cfa71

SHA512
c7a5fd63c0faa2a5cd8be90c7dcf10d8dd564964dc4b8ab4fa1a7a188fa89094563f595c94f4ea133582cfbcf9cc90cb74bd273924b7fa5eadae868bced51440

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

Filesize
488B

MD5
209fb2a38d7159f3f1827c9fc3e9d804

SHA1
c16938603eb190e8504cea3350029033d7bc48f2

SHA256
cf5ad31c46e579a44069f71f88c7ef3250aaec21752f792604510b59550f7186

SHA512
c1f94c15656fb2c96be102c47199d36f6ea66c80648534ff909256b62c033e6dfd2b1e55f9f31fd21117a49d57cda02524f47f2c6938b2f60dcf8037994a0d18

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
0beceb32d77e432e24c35346bc0411f9

SHA1
9b807a5aa654558696ec4f92241195d3e5da68d3

SHA256
2123f5d8ee1ae3425da90ceb56215de73bfdd4992bd83e047fb12d4644852451

SHA512
c72f25bf4192e467bb8158e04e1a968daa5302cac8c2832f1ea4d01b8eb6b9c80f98261f2977399a123b798a2bd2990b0719bad448b16ef8e53dbf68a18d0e8e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

Filesize
482B

MD5
d439a48794cb909de6c1f4c0ee96e414

SHA1
2830ebcb9ed09b8ed33a9bcae9e794ec183cbff0

SHA256
23d63ba6ba1ba2a9febf3fdb38dd28f7e726c87ca9ca7677d02396e99b41353a

SHA512
c58ac878b0b9b6aa51fe1a1592c0f4b9511c92e2d5b1b066deb3a7cbfd0c017d43612a60d447f9a0269a689ccfb7631cc8ce8d3ce151041d9a37335ad4812107

Download Submit
C:\Users\Admin\AppData\Local\7aa58a9d-ab17-47db-8c5b-50b288e14eba\file.exe

Filesize
821KB

MD5
eab9ded288ae44356d1063e5898748d3

SHA1
4345b26ac78f3eb0ef37e387e91e6ab55a0ef9c2

SHA256
528f4b8565a6941bcd72f1f90af1034fe4b93e401609bde90437fba1a3227e2b

SHA512
3156c48b49eb9fd8211725fac62cb6a45d0dbc7085dab540348844c52c0d686351a1742d6642b51abdb28f2dd0591dee82a43215a9df0438a4319d791b489c53

Download Submit
C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe

Filesize
376KB

MD5
8b01bb02b7aeb097ba96dc7628575ca0

SHA1
11046fb024f695b1dc7a3a0be9167cb4e85548c6

SHA256
7abb4b2423a93fa4b7a2cd19bcc854cc96d2e9ed20c13b86c39f49fe7cb80e4a

SHA512
64cd772d4e319255e32909577ac137966cd47bd295aa3a61a76e52d651d80d313a3cfee7ea88d703bb293931a91558161184de2b76f8e5d9a2358a065c5c5f35

Download Submit
C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe

Filesize
376KB

MD5
8b01bb02b7aeb097ba96dc7628575ca0

SHA1
11046fb024f695b1dc7a3a0be9167cb4e85548c6

SHA256
7abb4b2423a93fa4b7a2cd19bcc854cc96d2e9ed20c13b86c39f49fe7cb80e4a

SHA512
64cd772d4e319255e32909577ac137966cd47bd295aa3a61a76e52d651d80d313a3cfee7ea88d703bb293931a91558161184de2b76f8e5d9a2358a065c5c5f35

Download Submit
C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe

Filesize
376KB

MD5
8b01bb02b7aeb097ba96dc7628575ca0

SHA1
11046fb024f695b1dc7a3a0be9167cb4e85548c6

SHA256
7abb4b2423a93fa4b7a2cd19bcc854cc96d2e9ed20c13b86c39f49fe7cb80e4a

SHA512
64cd772d4e319255e32909577ac137966cd47bd295aa3a61a76e52d651d80d313a3cfee7ea88d703bb293931a91558161184de2b76f8e5d9a2358a065c5c5f35

Download Submit
C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build3.exe

Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
C:\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build3.exe

Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe

Filesize
376KB

MD5
8b01bb02b7aeb097ba96dc7628575ca0

SHA1
11046fb024f695b1dc7a3a0be9167cb4e85548c6

SHA256
7abb4b2423a93fa4b7a2cd19bcc854cc96d2e9ed20c13b86c39f49fe7cb80e4a

SHA512
64cd772d4e319255e32909577ac137966cd47bd295aa3a61a76e52d651d80d313a3cfee7ea88d703bb293931a91558161184de2b76f8e5d9a2358a065c5c5f35

Download Submit
\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build2.exe

Filesize
376KB

MD5
8b01bb02b7aeb097ba96dc7628575ca0

SHA1
11046fb024f695b1dc7a3a0be9167cb4e85548c6

SHA256
7abb4b2423a93fa4b7a2cd19bcc854cc96d2e9ed20c13b86c39f49fe7cb80e4a

SHA512
64cd772d4e319255e32909577ac137966cd47bd295aa3a61a76e52d651d80d313a3cfee7ea88d703bb293931a91558161184de2b76f8e5d9a2358a065c5c5f35

Download Submit
\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build3.exe

Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
\Users\Admin\AppData\Local\ad227a35-a930-402d-a9c9-2aca9c12e1ff\build3.exe

Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
memory/268-63-0x0000000000000000-mapping.dmp

Download
memory/628-94-0x0000000000000000-mapping.dmp

Download
memory/676-105-0x0000000000000000-mapping.dmp

Download
memory/776-93-0x000000000042185D-mapping.dmp

Download
memory/776-91-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/936-65-0x0000000000000000-mapping.dmp

Download
memory/936-71-0x0000000001CF0000-0x0000000001D82000-memory.dmp

Filesize
584KB

Download
memory/936-66-0x0000000001CF0000-0x0000000001D82000-memory.dmp

Filesize
584KB

Download
memory/1352-87-0x0000000000000000-mapping.dmp

Download
memory/1624-96-0x000000000095B000-0x0000000000987000-memory.dmp

Filesize
176KB

Download
memory/1624-83-0x0000000000000000-mapping.dmp

Download
memory/1624-99-0x0000000000270000-0x00000000002BA000-memory.dmp

Filesize
296KB

Download
memory/1652-102-0x0000000000000000-mapping.dmp

Download
memory/1684-73-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1684-69-0x0000000000424141-mapping.dmp

Download
memory/1684-100-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1684-74-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1764-60-0x0000000000800000-0x000000000091B000-memory.dmp

Filesize
1.1MB

Download
memory/1764-54-0x0000000000740000-0x00000000007D2000-memory.dmp

Filesize
584KB

Download
memory/1764-58-0x0000000000740000-0x00000000007D2000-memory.dmp

Filesize
584KB

Download
memory/1932-59-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/1932-61-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1932-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1932-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1932-56-0x0000000000424141-mapping.dmp

Download
memory/1932-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download