socks5systemz | 292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f

General

Target

292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe
Size

4.6MB
MD5

81112fcc5bb3c3e3728a1eaeb3a37fbb
SHA1

0536467a4c8b205f33921e373f803f6b53de0743
SHA256

292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f
SHA512

79498d9d9b75f486bf7fc65859c2c1b8177efb7e27c7b208a6c935d25e8edcdac96514cf4306558b9fd552bc478320c3be923dc200220eea37e7c9a5279c8e3d
SSDEEP

98304:m3Bg7ptfy4Cj68dXB80Oehw4n8L+LzHUsYVvuq4CzjEzijvn+/:UBopE4e68V6ehXn8L+nKVGSqijvn+

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ebuwnce.ua

http://ebuwnce.ua/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff711c0e6959b33

http://ebuwnce.ua/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12eab517aa5c96bd86ef9c804f805a8bbc896c58e713bc90c91d36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9a3bc46f971e

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/100-87-0x00000000028C0000-0x0000000002962000-memory.dmp	family_socks5systemz
behavioral1/memory/100-110-0x00000000028C0000-0x0000000002962000-memory.dmp	family_socks5systemz
behavioral1/memory/100-111-0x00000000028C0000-0x0000000002962000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp
1344	linuxmultiMediastudio.exe
100	linuxmultiMediastudio.exe

Loads dropped DLL 1 IoCs

pid	Process
412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.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	91.211.247.248

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
412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 412	2300	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe	82
PID 2300 wrote to memory of 412	2300	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe	82
PID 2300 wrote to memory of 412	2300	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe	82
PID 412 wrote to memory of 1344	412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp	84
PID 412 wrote to memory of 1344	412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp	84
PID 412 wrote to memory of 1344	412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp	84
PID 412 wrote to memory of 100	412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp	86
PID 412 wrote to memory of 100	412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp	86
PID 412 wrote to memory of 100	412	292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp	86

C:\Users\Admin\AppData\Local\Temp\292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe
"C:\Users\Admin\AppData\Local\Temp\292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\is-N91N8.tmp\292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-N91N8.tmp\292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp" /SL5="$5016C,4581621,54272,C:\Users\Admin\AppData\Local\Temp\292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:412
- - C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
    "C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1344
- - C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
    "C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -s
    3⤵
    - Executes dropped EXE
    PID:100

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\Linux MultiMedia Studio\linuxmultiMediastudio.exe

Filesize
2.9MB

MD5
ccff8eba36c37e804ddf41625879af30

SHA1
190b618603f1e17896eb832ec9c0023080e34410

SHA256
e84a49b653cac64d25ae3b7abad8a9859600b51801faa02e0e8a832a2287d652

SHA512
faea0b24b7f4280fecdb99d9b33c47e321d793bb7c7ea27dcbfc31125471e6138c29db086b876be21e00951721ec333063bb130e2ef360ed3f5e83f6d0d0df0c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-J6668.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-N91N8.tmp\292c8faff82015fd30f2c0ab1a36f238d25d2cb5728db3f5b1d085d359d3b93f.tmp

Filesize
680KB

MD5
9e060fd52fe2d2c3d99f08a2c420fbe4

SHA1
ff4322563f4093cdcd878b54774bdd95ed167420

SHA256
c2448d11d0a1487e74f5d94961d1317910f5b7777541bb07e41c15b42b40d377

SHA512
36815790bc7e569a3c1a1809d9bcbd3e5742c2694f8a9137e1ec02eca183a5f5a1670bbd806c4510d5b3fb874780a70f7102574678f0f002d8fdfdff701672bb

Download Submit
memory/100-97-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-80-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-118-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-115-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-111-0x00000000028C0000-0x0000000002962000-memory.dmp

Filesize
648KB

Download
memory/100-110-0x00000000028C0000-0x0000000002962000-memory.dmp

Filesize
648KB

Download
memory/100-109-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-68-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-106-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-103-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-71-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-74-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-77-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-100-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-83-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-87-0x00000000028C0000-0x0000000002962000-memory.dmp

Filesize
648KB

Download
memory/100-88-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/100-94-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/412-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/412-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1344-65-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/1344-63-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/1344-60-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/1344-59-0x0000000000400000-0x00000000006E4000-memory.dmp

Filesize
2.9MB

Download
memory/2300-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2300-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2300-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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