socks5systemz | 5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6

General

Target

5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe
Size

4.2MB
MD5

22cb238c0068d06a64d0b3725d2a6fc0
SHA1

83f427958c95b08a67b0bd6a85d7e81610f5a4bd
SHA256

5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6
SHA512

b55ffd92203b0012a42de7284ef9793388cce3ca2284af0d531e67c0d7a8399fc52f534fe11f5d0a7d6d836ce8a4569b3e25e94172e07884551212f34bb50f5a
SSDEEP

98304:p7HuwJs7tR4MOrFVZ/gZEaZjQCOIxdFyK87odQxF:NXUtRJEZYZEatMkdFyK/Qf

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bujgbyo.com/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd13c4e99c9c3f

http://bujgbyo.com/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12eab517aa5c96bd86ec978144865a8bbc896c58e713bc90c91136b5281fc235a925ed3e55d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee97983fcb669012

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral1/memory/4772-74-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/4772-77-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/4772-86-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/4772-99-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/4772-100-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp
1448	wtigeraudio.exe
4772	wtigeraudio.exe

Loads dropped DLL 3 IoCs

pid	Process
1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp
1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp
1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.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
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
1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1344	1368	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe	86
PID 1368 wrote to memory of 1344	1368	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe	86
PID 1368 wrote to memory of 1344	1368	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe	86
PID 1344 wrote to memory of 1448	1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp	90
PID 1344 wrote to memory of 1448	1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp	90
PID 1344 wrote to memory of 1448	1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp	90
PID 1344 wrote to memory of 4772	1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp	91
PID 1344 wrote to memory of 4772	1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp	91
PID 1344 wrote to memory of 4772	1344	5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp	91

C:\Users\Admin\AppData\Local\Temp\5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe
"C:\Users\Admin\AppData\Local\Temp\5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\is-I6NS2.tmp\5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-I6NS2.tmp\5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp" /SL5="$B0062,4020934,156160,C:\Users\Admin\AppData\Local\Temp\5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Users\Admin\AppData\Local\White Tiger Audio\wtigeraudio.exe
    "C:\Users\Admin\AppData\Local\White Tiger Audio\wtigeraudio.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1448
- - C:\Users\Admin\AppData\Local\White Tiger Audio\wtigeraudio.exe
    "C:\Users\Admin\AppData\Local\White Tiger Audio\wtigeraudio.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4772

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-I6NS2.tmp\5033237eac5a71a2a291b97555df9f3d3fb02f0342f95ade5d46ab0f9dd71dc6.tmp

Filesize
680KB

MD5
fbdc9a20759aeb5d350c0622bd4f4ddf

SHA1
1fad53c336953b3539eb6e9013794329158e1776

SHA256
3be3db079614c126e14aba9c96d286b4b6f6e0916ee1960dfb49852f2bbab0ea

SHA512
83e188a22a484fef42bc1a256a97fe2302aef604ad7f3a8de2e50e6279ee1df15638f6d160b8457fca7c7c30b99d44070b4e93e6123f94624b43e34acf8aa4d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UTK79.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UTK79.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\White Tiger Audio\wtigeraudio.exe

Filesize
2.2MB

MD5
e856671b4ba4ae2579a84890e654dd4b

SHA1
f855dbb00432b272a23b6572b25928aad8e87f7f

SHA256
ab4956c18137e654fe6b83119e7d924cab78e67b51a4721917aa4b60259f0395

SHA512
6ed1ebca106fe4db7602eb15af08009674462756cc453c4eae8eea85a3b68168a929eefac3a770a90c0a8b378094912b12e613f0badf358827046b59a805ef15

Download Submit
memory/1344-7-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/1344-56-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1344-58-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/1368-2-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1368-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1368-55-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1448-45-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/1448-46-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/1448-49-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/1448-50-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-62-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-82-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-54-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-61-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-52-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-65-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-68-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-71-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-74-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/4772-75-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-77-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/4772-57-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-85-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-86-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/4772-89-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-92-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-95-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-98-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-99-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/4772-100-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/4772-104-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/4772-107-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download

Analysis

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