socks5systemz | 90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff

General

Target

90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe
Size

7.4MB
MD5

38e2dd22d157146919a056b06c6af89e
SHA1

be35686f713ce5cff4f27fa39b326cfe29904efd
SHA256

90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff
SHA512

35166b4305d96e8e1b66d50c5439d8c296624c6fc1411989623d6940a1b776abd2851f653b306a1c20b8a37125713929d9ef13b1dd0d24f0dc62e65bcce5318f
SSDEEP

196608:ZIy3g1YUIFr2j3TfKy94xILcF/j2oQPyghUTX61b:ZX3dUOMjCyeOLeCdVG65

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://dtltedi.info/search/?q=67e28dd8395cfa2c165dfe4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ef818c1e99c9c3f

http://dtltedi.info/search/?q=67e28dd8395cfa2c165dfe4e7c27d78406abdd88be4b12eab517aa5c96bd86ee90804a825a8bbc896c58e713bc90c91836b5281fc235a925ed3e55d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ef92933acb669012

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral2/memory/3712-89-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/3712-93-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/3712-102-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/3712-115-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/3712-116-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp
2264	virtualcdmediaemul.exe
3712	virtualcdmediaemul.exe

Loads dropped DLL 3 IoCs

pid	Process
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.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	45.155.250.90

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4212	540	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe	84
PID 540 wrote to memory of 4212	540	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe	84
PID 540 wrote to memory of 4212	540	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe	84
PID 4212 wrote to memory of 2264	4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp	85
PID 4212 wrote to memory of 2264	4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp	85
PID 4212 wrote to memory of 2264	4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp	85
PID 4212 wrote to memory of 3712	4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp	86
PID 4212 wrote to memory of 3712	4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp	86
PID 4212 wrote to memory of 3712	4212	90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp	86

C:\Users\Admin\AppData\Local\Temp\90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe
"C:\Users\Admin\AppData\Local\Temp\90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\is-FHFNH.tmp\90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-FHFNH.tmp\90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp" /SL5="$E0040,7535361,54272,C:\Users\Admin\AppData\Local\Temp\90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4212
- - C:\Users\Admin\AppData\Local\Virtual CD Media Emulator\virtualcdmediaemul.exe
    "C:\Users\Admin\AppData\Local\Virtual CD Media Emulator\virtualcdmediaemul.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2264
- - C:\Users\Admin\AppData\Local\Virtual CD Media Emulator\virtualcdmediaemul.exe
    "C:\Users\Admin\AppData\Local\Virtual CD Media Emulator\virtualcdmediaemul.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FHFNH.tmp\90826bcb3fea845e7ddae834728dede639721d9b21b7581eef0ca1ee9f4775ff.tmp

Filesize
689KB

MD5
eef6a8f73f288717625fa9b848b86bd3

SHA1
8db4b72115792ac5f3a0c1aa71ee52c973a6b570

SHA256
3fcf803d50beb63f15085830c32e50262cb326d92239ebfe0723687cb7604332

SHA512
5b8692642fa4f6b325a230c1a05a62324ff815a3c8eabc72874883d1bd33bf8a7049fb9f652b768e363fb4b0cc5a6e3de5494e74f23a71e22bca7e06b0b8aefb

Download Submit
C:\Users\Admin\AppData\Local\Virtual CD Media Emulator\virtualcdmediaemul.exe

Filesize
2.3MB

MD5
ef1a401a066ea7afbede98a4d9b95577

SHA1
5eb1989fd7c5abf118108c6b206b412aff9b1290

SHA256
7489c38da48d295575960749457f2f1b62b3c780f6d536d0510f50687e0f36bb

SHA512
91d075c80ac6b0c25af579292c181d4621f722c14cce5a42d50d49df0c4ad42270dcbcd3aeb538647e7a319bf70b616b451dab8b2926eb73948d32f84deb0cb0

Download Submit
C:\Users\Admin\AppData\Local\Virtual CD Media Emulator\virtualcdmediaemul.exe

Filesize
1.5MB

MD5
4bcc005a37bcf4c807e39015ca557009

SHA1
9945c45073cd2ce2db80e83983b4a589eba6a030

SHA256
a59293936da1e5719e9f707f1e8a4f138eb4fba317538c8ec862cce7354c1682

SHA512
6c2ecc342f39c9107d602b1f45988a770af26d4525892371a5f5f186333da53872b5c003a3ff6f5e65393f7ca79ce24fddb384b5a86946d7af53f714d78aef67

Download Submit
memory/540-71-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/540-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2264-62-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2264-63-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2264-66-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2264-67-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-77-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-92-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-123-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-73-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-120-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-116-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/3712-78-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-81-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-84-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-87-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-89-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/3712-70-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-93-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/3712-98-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-101-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-102-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/3712-105-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-108-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-111-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-114-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3712-115-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/4212-6-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/4212-74-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/4212-72-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

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