socks5systemz | b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b

General

Target

b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe
Size

6.8MB
MD5

a22d05291c7b0e2ff649cccf14290759
SHA1

1e277c125c2cf9a837c7ea09fd2279c4d6f3a94c
SHA256

b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b
SHA512

53083a075d267471ccc75f53a0cdef2da76fa034a482c2ed74be050d3636c1164a49dc826c15d6ea134f4a8063df534d8c68f7598bf60ee3d88f8d855534eea6
SSDEEP

196608:zl0ekCMOcdccUmniQ+LCHPEo+eivnfpdYk4Y:zl0ekCMVdc4vkeEo+zfpukN

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3216-94-0x0000000000B80000-0x0000000000C22000-memory.dmp	family_socks5systemz
behavioral2/memory/3216-117-0x0000000000B80000-0x0000000000C22000-memory.dmp	family_socks5systemz
behavioral2/memory/3216-118-0x0000000000B80000-0x0000000000C22000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp
2504	voicechangeremerald32.exe
3216	voicechangeremerald32.exe

Loads dropped DLL 3 IoCs

pid	Process
2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp
2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp
2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.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	152.89.198.214

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
2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 2408	4088	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe	78
PID 4088 wrote to memory of 2408	4088	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe	78
PID 4088 wrote to memory of 2408	4088	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe	78
PID 2408 wrote to memory of 2504	2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp	79
PID 2408 wrote to memory of 2504	2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp	79
PID 2408 wrote to memory of 2504	2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp	79
PID 2408 wrote to memory of 3216	2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp	80
PID 2408 wrote to memory of 3216	2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp	80
PID 2408 wrote to memory of 3216	2408	b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp	80

C:\Users\Admin\AppData\Local\Temp\b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe
"C:\Users\Admin\AppData\Local\Temp\b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Users\Admin\AppData\Local\Temp\is-RIE9G.tmp\b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-RIE9G.tmp\b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp" /SL5="$500DA,6847387,54272,C:\Users\Admin\AppData\Local\Temp\b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe
    "C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2504
- - C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe
    "C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3216

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-956KT.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-956KT.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-RIE9G.tmp\b2b355e200df0a981d46138416dcd02d107c8de26297b1cc3950efe4722c850b.tmp

Filesize
680KB

MD5
6f53adc5d8e50e0d427fc8d117017323

SHA1
afdc24aaaf49400c6bb3bdb537371775dea76be5

SHA256
8099232441d1e538e73eb9639ea8700c61797997054c775da8dadcbcdbccfe45

SHA512
3ead2d7f46f59d8336761054f5f6c6d76ab18b64852212e7db0305529a5eb919ab4a7a8434784e0ab5d9442969f78bcab6fe01b2e5a03e27e2e86d04ff4daea0

Download Submit
C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe

Filesize
4.5MB

MD5
678421adf835c172f3ed225cb6767069

SHA1
5a9c1c44abe8ce8f5610721943ae919f479b4451

SHA256
f449449b8de70aadfe35eff0ab4e0872797c582a5a5542e1bb35f4d422a35b85

SHA512
34e1f5f5c37ab1dd47effa54933e09974dffbfbc9f91b18f7fe58851d298f55d26adb2b7dee68ca647d11269c13ae625bced36c2da068095b40a1cc239bf83da

Download Submit
memory/2408-77-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2408-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2504-71-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/2504-65-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/2504-66-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/2504-69-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-81-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-110-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-75-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-125-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-122-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-78-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-118-0x0000000000B80000-0x0000000000C22000-memory.dmp

Filesize
648KB

Download
memory/3216-82-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-85-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-88-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-91-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-94-0x0000000000B80000-0x0000000000C22000-memory.dmp

Filesize
648KB

Download
memory/3216-98-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-101-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-104-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-107-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-74-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-113-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-116-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/3216-117-0x0000000000B80000-0x0000000000C22000-memory.dmp

Filesize
648KB

Download
memory/4088-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4088-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4088-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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