socks5systemz | 1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032

General

Target

1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe
Size

4.3MB
MD5

f941db73c47929f1cff6e606c9d71001
SHA1

0f8ebe272ad558eb3935b079a6ede1e8b9e3304c
SHA256

1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032
SHA512

f828bce4b47813641f331cd358b90e9be79861b3a22a740523729037d89e5429ab1cd5d5ae36d3a4545e7e4b5d98dcdc24b34b7f436e4ff641acfd75693d2c76
SSDEEP

98304:+hqYAn4YpfLeTHGY24slg2mvn2dr05kRdFlwWliwWG3pdIo5IFO/dgaECd8d1Zt:bD4Ypzibgl1mYr05kzFlwWliwWG954Xd

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://aiiudhz.ru/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffb16c7eb9d983e

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4428-83-0x00000000009C0000-0x0000000000A62000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp
1868	auditorium32.exe
4428	auditorium32.exe

Loads dropped DLL 1 IoCs

pid	Process
1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.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 712 wrote to memory of 1340	712	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe	73
PID 712 wrote to memory of 1340	712	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe	73
PID 712 wrote to memory of 1340	712	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe	73
PID 1340 wrote to memory of 1868	1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp	74
PID 1340 wrote to memory of 1868	1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp	74
PID 1340 wrote to memory of 1868	1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp	74
PID 1340 wrote to memory of 4428	1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp	75
PID 1340 wrote to memory of 4428	1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp	75
PID 1340 wrote to memory of 4428	1340	1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp	75

C:\Users\Admin\AppData\Local\Temp\1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe
"C:\Users\Admin\AppData\Local\Temp\1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:712
- C:\Users\Admin\AppData\Local\Temp\is-0VJHB.tmp\1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-0VJHB.tmp\1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp" /SL5="$501F0,4214229,54272,C:\Users\Admin\AppData\Local\Temp\1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1340
- - C:\Users\Admin\AppData\Local\Auditorium\auditorium32.exe
    "C:\Users\Admin\AppData\Local\Auditorium\auditorium32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1868
- - C:\Users\Admin\AppData\Local\Auditorium\auditorium32.exe
    "C:\Users\Admin\AppData\Local\Auditorium\auditorium32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4428

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\Auditorium\auditorium32.exe

Filesize
2.2MB

MD5
de4af6f1cb2d558fd6b5370d1880eee2

SHA1
2999782fde442bf3fbb68df1229654e4e5ac1c06

SHA256
fe7598bb37c2646de16e6acaecb9424f778c277a1f260046f5abb79ab744490d

SHA512
dc41913cd7a316b252d945de82ea39c4a6e352dfc420d3dc63415104c18e3f85f040d118ffffbd3db9913ad841321286c39b14710548ade46c5f2f775fe9afcd

Download Submit
C:\Users\Admin\AppData\Local\Auditorium\libeay32.dll

Filesize
2.3MB

MD5
5afad5dd0bae7f01c2be79f9f168c9e8

SHA1
553fe32e9cc002b3357c11de74478b85b04657bc

SHA256
4c5c6debe9453f0343f163aa72b7049f3167bc08d3b2d549fcabc4ee6bfbafcd

SHA512
3f78196965db2fa5f6a13fecd9d93abbbaafaa52a6b43e8bd957d3b1e52bc3930db2d72e79cd34315f56b9758ed37a5d6b122533351d90296abfe8ca7f62fb3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0VJHB.tmp\1065bf4a570688f12e8247b4ed1f193e9d148b69dc65c1dac362167a7e002032.tmp

Filesize
695KB

MD5
a287ecffad7cec4fca751c14eb6a1e03

SHA1
b23ea238468f657f049e70067cfc75a22858c395

SHA256
9f31cf21012d515b2f351c0e69bf0b94954a9807a847c98388c3302320362948

SHA512
0669d5d06444a5a0c589f5fe85550efafbf96ff38ab1bbdd1b3a76408e79307c5af2cd266d403c41762d7b354efdf2bd6d29e02bb40c74e843716ca8ffe9a087

Download Submit
\Users\Admin\AppData\Local\Temp\is-F9VKV.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/712-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/712-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/712-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-69-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1340-10-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1868-59-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/1868-60-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/1868-63-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-79-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-101-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-73-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-76-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-66-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-82-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-83-0x00000000009C0000-0x0000000000A62000-memory.dmp

Filesize
648KB

Download
memory/4428-87-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-92-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-95-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-98-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-70-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-104-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-107-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-111-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-114-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-117-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-120-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-123-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-126-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download
memory/4428-131-0x0000000000400000-0x000000000063A000-memory.dmp

Filesize
2.2MB

Download

Analysis

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