socks5systemz | 9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4

General

Target

9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe
Size

4.3MB
MD5

e3b572b70324c8933dc2f0b8a5c5febe
SHA1

28773f39d1c427ff204b60f992dc8874f99d7b88
SHA256

9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4
SHA512

5ba677a14be1af8ce3937a2df5c57abb6b3f96161d229f0c057c343e40463050206c142e3b1b4aa0ea12df34e2f1809482e65dd036be2649f5cde69db7c2d517
SSDEEP

98304:+Q/zNg63hClcTUU8woglvLQFxkikQiXWgVje3xEz8yd1ZyI:ZzS631AU80vUwi43Vje3xEvXN

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bhwhcae.com/search/?q=67e28dd86b55f62e435ba9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffb17c0e9949e3e

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1724-85-0x0000000000840000-0x00000000008E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp
3436	jenimvoxfree.exe
1724	jenimvoxfree.exe

Loads dropped DLL 1 IoCs

pid	Process
4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 4148	2368	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe	73
PID 2368 wrote to memory of 4148	2368	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe	73
PID 2368 wrote to memory of 4148	2368	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe	73
PID 4148 wrote to memory of 3436	4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp	74
PID 4148 wrote to memory of 3436	4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp	74
PID 4148 wrote to memory of 3436	4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp	74
PID 4148 wrote to memory of 1724	4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp	75
PID 4148 wrote to memory of 1724	4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp	75
PID 4148 wrote to memory of 1724	4148	9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp	75

C:\Users\Admin\AppData\Local\Temp\9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe
"C:\Users\Admin\AppData\Local\Temp\9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\is-ECCMP.tmp\9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-ECCMP.tmp\9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp" /SL5="$502EC,4244133,54272,C:\Users\Admin\AppData\Local\Temp\9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:4148
- - C:\Users\Admin\AppData\Local\Jenim VOX Free\jenimvoxfree.exe
    "C:\Users\Admin\AppData\Local\Jenim VOX Free\jenimvoxfree.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3436
- - C:\Users\Admin\AppData\Local\Jenim VOX Free\jenimvoxfree.exe
    "C:\Users\Admin\AppData\Local\Jenim VOX Free\jenimvoxfree.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1724

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\Jenim VOX Free\jenimvoxfree.exe

Filesize
2.4MB

MD5
7e423fb551dabeecff8d498e82c4815e

SHA1
4a5163645e061f1a682c52ea6449002bab8fc07b

SHA256
61a2ef1ab5703a3cc3f0c9fc21ef9fe07f6ef811a9790c5683273b7d7a79cf98

SHA512
e9a1d6f5c5f35aa3787c052ab2892b330d4d40d5fc480ef5c03679cedad0704e9aac20e09218d8f2acf351e4b375ceb51932a96d7e64fee3bf5bdcb57c47ebd6

Download Submit
C:\Users\Admin\AppData\Local\Jenim VOX Free\libeay32.dll

Filesize
2.3MB

MD5
5afad5dd0bae7f01c2be79f9f168c9e8

SHA1
553fe32e9cc002b3357c11de74478b85b04657bc

SHA256
4c5c6debe9453f0343f163aa72b7049f3167bc08d3b2d549fcabc4ee6bfbafcd

SHA512
3f78196965db2fa5f6a13fecd9d93abbbaafaa52a6b43e8bd957d3b1e52bc3930db2d72e79cd34315f56b9758ed37a5d6b122533351d90296abfe8ca7f62fb3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ECCMP.tmp\9331d1a1817ed5cad1e190606aa24fee07f703367df6fc6a461bc8c8e7e848f4.tmp

Filesize
695KB

MD5
6dcdd35867f41d0dbe84f7e24274afcc

SHA1
081d110e0056e1c947b9485a8e19c1d9a8bf540b

SHA256
4ba3a789b8d77154ca0595f3fc1315df3701616146119f030d2a5c981c62aabd

SHA512
fd7ad40ce5f31fdcfab4d0a1772a9dfe90b49f4634f1a89ad09a414ab3abc123e9d4839958127ada46cb63f4c31362efa6b2bae4c359859cacbbacdd272b1af0

Download Submit
\Users\Admin\AppData\Local\Temp\is-7Q5D6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1724-82-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-104-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-131-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-126-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-123-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-120-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-117-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-114-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-70-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-73-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-76-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-79-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-111-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-85-0x0000000000840000-0x00000000008E2000-memory.dmp

Filesize
648KB

Download
memory/1724-87-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-92-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-95-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-98-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-101-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/1724-107-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/2368-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3436-64-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/3436-60-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/3436-59-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/4148-10-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4148-69-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

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