socks5systemz | 87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a

General

Target

87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe
Size

4.5MB
MD5

3f4ac40876eb79c202b6f2c0e74ceab2
SHA1

8a9b592e912523eb1706e834a184a4c05b66aebf
SHA256

87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a
SHA512

ad306778d9e0200e56ea8078073f6ea0dfe2ade9893e753f8d95d96d22473bb74430debc2707b919df6c4280863ec2d332a2e453d94300d852f9b79f77a565e7
SSDEEP

98304:m2lMhJhWnooZDUpYUSDig+2wsH8jrerMcmTFf4:/y7JoZDCYUSWO8jfcKf4

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4492-84-0x00000000024A0000-0x0000000002542000-memory.dmp	family_socks5systemz
behavioral2/memory/4492-110-0x00000000024A0000-0x0000000002542000-memory.dmp	family_socks5systemz
behavioral2/memory/4492-111-0x00000000024A0000-0x0000000002542000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp
4892	vaervideorecorder.exe
4492	vaervideorecorder.exe

Loads dropped DLL 1 IoCs

pid	Process
2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	141.98.234.31

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 568 wrote to memory of 2644	568	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe	77
PID 568 wrote to memory of 2644	568	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe	77
PID 568 wrote to memory of 2644	568	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe	77
PID 2644 wrote to memory of 4892	2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp	78
PID 2644 wrote to memory of 4892	2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp	78
PID 2644 wrote to memory of 4892	2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp	78
PID 2644 wrote to memory of 4492	2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp	79
PID 2644 wrote to memory of 4492	2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp	79
PID 2644 wrote to memory of 4492	2644	87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp	79

C:\Users\Admin\AppData\Local\Temp\87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe
"C:\Users\Admin\AppData\Local\Temp\87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:568
- C:\Users\Admin\AppData\Local\Temp\is-FCKBI.tmp\87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-FCKBI.tmp\87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp" /SL5="$40222,4458431,54272,C:\Users\Admin\AppData\Local\Temp\87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe
    "C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4892
- - C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe
    "C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-D1GR0.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FCKBI.tmp\87a2b6d8e9f3e20bc5a2fd66e551a7add5604ebe69fe7e9d354901c4d82b311a.tmp

Filesize
680KB

MD5
47d9bbe70b5142eecee1594b8283ebd6

SHA1
a23ad785865f2f40d20ff7ccd317e46f7325a104

SHA256
bbfcaecc64b36dcb118ba9136246dfd943f3b70812c6a949f9b507a46282dbc3

SHA512
b38d94d48eb44beb404d9a7577a37968bcd181c2855f88e9909d12bdc9891a18f7a6229c588ec508e36ee46b62ebe255f00ba8b8368569acebee29b48ecfc8d0

Download Submit
C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe

Filesize
2.6MB

MD5
61fba91a41d52c314f742ea51162afef

SHA1
ae6c3086f5e6a142e8cd8db1b2a3ce159099d872

SHA256
be28a09fc83afbe7da0b7af8910e76ff09b6e570a71a65b05e31ede2b2da860f

SHA512
2e31392a2249fbad79be1cac235af329f4869acc02209befe93f7d5037ee7655ca33fc26439f30700ed48c2ccdb0b9187d54f8f796f123075aaec3eba000199f

Download Submit
memory/568-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/568-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/568-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2644-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4492-97-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-89-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-68-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-118-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-115-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-71-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-74-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-77-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-80-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-83-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-84-0x00000000024A0000-0x0000000002542000-memory.dmp

Filesize
648KB

Download
memory/4492-111-0x00000000024A0000-0x0000000002542000-memory.dmp

Filesize
648KB

Download
memory/4492-94-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-110-0x00000000024A0000-0x0000000002542000-memory.dmp

Filesize
648KB

Download
memory/4492-100-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-103-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-106-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4492-109-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4892-60-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4892-64-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4892-59-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4892-65-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download

Analysis

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