socks5systemz | e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712

General

Target

e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe
Size

4.2MB
MD5

bfab5648e5a967b4ca294eb858e64367
SHA1

bbc978ce56fc03c1e4ee99e880f911852512711b
SHA256

e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712
SHA512

a2d814e442f9d5a535e74b1c23858eb64a4637692958fc7b879fb2e384e9fbafb514dec9aed01c67336f17e40df90f33cdb48080da61c9f9ad3309fedef62c88
SSDEEP

98304:CODIgEF4Nev9qqd0VrlEa1X5XX4FJ4BCw3I62MCJdQxbhq:NuqeAVD1pXX4r4BCuoFdQjq

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://buuoamz.com/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffd12c2e8949c38

http://buuoamz.com/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12eab517aa5c96bd86e593814996148ab2865b77f80ebad9c40f7cb63037ed2ab423a4614383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1ed96983ccc6995

Signatures

Detect Socks5Systemz Payload 4 IoCs

resource	yara_rule
behavioral2/memory/1972-75-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz
behavioral2/memory/1972-85-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz
behavioral2/memory/1972-98-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz
behavioral2/memory/1972-99-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp
2388	disksettings.exe
1972	disksettings.exe

Loads dropped DLL 3 IoCs

pid	Process
1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp
1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp
1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.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	141.98.234.31

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
1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 1516	1276	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe	77
PID 1276 wrote to memory of 1516	1276	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe	77
PID 1276 wrote to memory of 1516	1276	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe	77
PID 1516 wrote to memory of 2388	1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp	78
PID 1516 wrote to memory of 2388	1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp	78
PID 1516 wrote to memory of 2388	1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp	78
PID 1516 wrote to memory of 1972	1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp	79
PID 1516 wrote to memory of 1972	1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp	79
PID 1516 wrote to memory of 1972	1516	e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp	79

C:\Users\Admin\AppData\Local\Temp\e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe
"C:\Users\Admin\AppData\Local\Temp\e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\is-B9T6V.tmp\e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-B9T6V.tmp\e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp" /SL5="$40230,4085430,54272,C:\Users\Admin\AppData\Local\Temp\e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe
    "C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2388
- - C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe
    "C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1972

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe

Filesize
2.4MB

MD5
e413dd87c9c4d33e418ddff55128256e

SHA1
3d6b7b2419c726daf5a482ed038a4580660764e7

SHA256
7d96cc64144e26403700c4cb6cb7b2ae799480c76a47c8481ca0f0c585276e1a

SHA512
72e034d60cdae11114ab85c6643ae9df5ae0f69fb3499e8f8414081a470b0f32012d085ede5eb8245058d97b6fbb3e1816c49dfd830ea82533f5a26b3ff79f17

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B9T6V.tmp\e5a8065145268e421965ba36bd4218617816f6753630e30e96ab1c2a5a02b712.tmp

Filesize
680KB

MD5
f8e6ae887c9c387c00d53210a68c1356

SHA1
66a2dc7c8931bd384e3d5672840f2bed34447a58

SHA256
2bc9ef602a307b60ab41b23e417fb74d7c2da963c7e0147bb5cbc2c773ef04ee

SHA512
9c312753b9da120159a1751fcb755be0d8877190bb8e281de92c97a136f28b0cbcd34280b3833cd5d997d8cfef42386ce5e4d2e0aec4a82fac180dbb965c4929

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-M91HP.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-M91HP.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/1276-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1516-7-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/1516-58-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/1516-56-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1972-81-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-75-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/1972-54-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-52-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-106-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-57-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-103-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-62-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-65-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-68-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-71-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-74-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-99-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/1972-98-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/1972-84-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-85-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/1972-88-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-91-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-94-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1972-97-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2388-46-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2388-45-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2388-50-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2388-49-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing