socks5systemz | 9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551

General

Target

9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe
Size

3.1MB
MD5

eae068a3c8755b6534349ba95356b7ab
SHA1

5eb2f06f00013730bed4f7a44817d58d5ebae373
SHA256

9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551
SHA512

3f13e3d644179cbdfa31c09e86b0d316f58c18788bba9fe838035c26283aa86026997d5e6b755cae66fdcbbcd0b2e7a748dd469b84083c7aaa118b65e168561d
SSDEEP

49152:p9XE4lpGPSRcqsWlQpZ+Drkf7SSnGwwUydhcgZGtJjzqwWKlSOxkKFe5OT4wQ8u:3Xhl8PQCWlQzP7uwyPmJignxkqeOTiB

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2748-82-0x0000000002B80000-0x0000000002C20000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

pid	Process
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
2748	regfixfreetool.exe

Loads dropped DLL 6 IoCs

pid	Process
2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
2748	regfixfreetool.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regfixfreetool.exe

Modifies system certificate store 2 TTPs 3 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2680 wrote to memory of 2136	2680	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe	30
PID 2136 wrote to memory of 2748	2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp	31
PID 2136 wrote to memory of 2748	2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp	31
PID 2136 wrote to memory of 2748	2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp	31
PID 2136 wrote to memory of 2748	2136	9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp	31

C:\Users\Admin\AppData\Local\Temp\9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe
"C:\Users\Admin\AppData\Local\Temp\9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Local\Temp\is-CM401.tmp\9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-CM401.tmp\9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp" /SL5="$400DC,3003508,56832,C:\Users\Admin\AppData\Local\Temp\9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Users\Admin\AppData\Local\Registry Fix Free Tool 7.5.7\regfixfreetool.exe
    "C:\Users\Admin\AppData\Local\Registry Fix Free Tool 7.5.7\regfixfreetool.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Modifies system certificate store
    PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
71KB

MD5
83142242e97b8953c386f988aa694e4a

SHA1
833ed12fc15b356136dcdd27c61a50f59c5c7d50

SHA256
d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

SHA512
bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

Download Submit
C:\Users\Admin\AppData\Local\Registry Fix Free Tool 7.5.7\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CM401.tmp\9ff154fc1fcaf2c1848caefd2d65686a424e9c083a62f844226e6dce0a896551.tmp

Filesize
694KB

MD5
8d190e7ff3f5a9edcf85ad2a203c3901

SHA1
3811c60a07ec37ea20cb946a1cf9be835c14d775

SHA256
2052a5ec84ef4f4cb0692dbda5337272fd3797ac977ed14885703e11822be2bb

SHA512
af92d2655a7d6956f7883ad5b4056234ffc85402f19e8d01b76fa397ccb8c380feaf75dd5d8cc1ba3416dcdc6038fd93a7f743e9a963610730415c8a161e84f3

Download Submit
\Users\Admin\AppData\Local\Registry Fix Free Tool 7.5.7\regfixfreetool.exe

Filesize
1.8MB

MD5
292f4457a0a652e53c1913e5a72e7e44

SHA1
00bbf29dc92d3280da64f510c50a32b3a4dd9b5d

SHA256
6173fb6ea77492e97484becd25e16c62e125b1114c27a6fd111c887358b7c20d

SHA512
374a35eec2bdc9faa6d0216e2014eec1af2c8edf2ab6c8e87a67a407997732a9b37fa8becfa955186b3b66a2fdba38d3ac7b67dd0580a62c2ec88c16209bf158

Download Submit
\Users\Admin\AppData\Local\Temp\is-86FMU.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-86FMU.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2136-46-0x0000000005380000-0x000000000555D000-memory.dmp

Filesize
1.9MB

Download
memory/2136-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2136-55-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2136-56-0x0000000005380000-0x000000000555D000-memory.dmp

Filesize
1.9MB

Download
memory/2680-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2748-61-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-82-0x0000000002B80000-0x0000000002C20000-memory.dmp

Filesize
640KB

Download
memory/2748-59-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-51-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-64-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-68-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-72-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-76-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-80-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-60-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2748-87-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-91-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-95-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-99-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-103-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-107-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-50-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-149-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2748-153-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download

Analysis

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