socks5systemz | 60185ad4f1d262dca113cdfcc63ff8eeeb576782adbe31d9aa4b10dc73c34109

General

Target

c1eff3689daf9190061421fb035524f0.exe
Size

4.3MB
MD5

c1eff3689daf9190061421fb035524f0
SHA1

ac5efa73953901ea5f4098fbf4be9ac97cc27e9e
SHA256

60185ad4f1d262dca113cdfcc63ff8eeeb576782adbe31d9aa4b10dc73c34109
SHA512

4a933c6daafc69a003af62bc726e5ea4b043d2b6e492f863da74f44273c3a7b9fee41040389882ea54f369a3a98cb067eab048741868656bad73ae53f72db767
SSDEEP

98304:0nVYRi5VeBzdPpVKaqSdhF4I9NbjehrrsA510z43h9sonEQxu:KVY2Vetdu0hF4s3qrrzf3hyoEQY

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://ckxoawb.net/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd12c0eb959d3b

http://ckxoawb.net/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12eab517aa5c96bd86eb918645815a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee97993bc96f9116

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral2/memory/2644-66-0x0000000000A20000-0x0000000000AC2000-memory.dmp	family_socks5systemz
behavioral2/memory/2644-68-0x0000000000A20000-0x0000000000AC2000-memory.dmp	family_socks5systemz
behavioral2/memory/2644-78-0x0000000000A20000-0x0000000000AC2000-memory.dmp	family_socks5systemz
behavioral2/memory/2644-91-0x0000000000A20000-0x0000000000AC2000-memory.dmp	family_socks5systemz
behavioral2/memory/2644-92-0x0000000000A20000-0x0000000000AC2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3928	c1eff3689daf9190061421fb035524f0.tmp
1520	disksettingsutility.exe
2644	disksettingsutility.exe

Loads dropped DLL 1 IoCs

pid	Process
3928	c1eff3689daf9190061421fb035524f0.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
3928	c1eff3689daf9190061421fb035524f0.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 3928	4760	c1eff3689daf9190061421fb035524f0.exe	85
PID 4760 wrote to memory of 3928	4760	c1eff3689daf9190061421fb035524f0.exe	85
PID 4760 wrote to memory of 3928	4760	c1eff3689daf9190061421fb035524f0.exe	85
PID 3928 wrote to memory of 1520	3928	c1eff3689daf9190061421fb035524f0.tmp	89
PID 3928 wrote to memory of 1520	3928	c1eff3689daf9190061421fb035524f0.tmp	89
PID 3928 wrote to memory of 1520	3928	c1eff3689daf9190061421fb035524f0.tmp	89
PID 3928 wrote to memory of 2644	3928	c1eff3689daf9190061421fb035524f0.tmp	90
PID 3928 wrote to memory of 2644	3928	c1eff3689daf9190061421fb035524f0.tmp	90
PID 3928 wrote to memory of 2644	3928	c1eff3689daf9190061421fb035524f0.tmp	90

C:\Users\Admin\AppData\Local\Temp\c1eff3689daf9190061421fb035524f0.exe
"C:\Users\Admin\AppData\Local\Temp\c1eff3689daf9190061421fb035524f0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Users\Admin\AppData\Local\Temp\is-24EKA.tmp\c1eff3689daf9190061421fb035524f0.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-24EKA.tmp\c1eff3689daf9190061421fb035524f0.tmp" /SL5="$900A8,4144827,511488,C:\Users\Admin\AppData\Local\Temp\c1eff3689daf9190061421fb035524f0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3928
- - C:\Users\Admin\AppData\Local\Disk Settings Utility\disksettingsutility.exe
    "C:\Users\Admin\AppData\Local\Disk Settings Utility\disksettingsutility.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1520
- - C:\Users\Admin\AppData\Local\Disk Settings Utility\disksettingsutility.exe
    "C:\Users\Admin\AppData\Local\Disk Settings Utility\disksettingsutility.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2644

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\Disk Settings Utility\disksettingsutility.exe

Filesize
2.3MB

MD5
8b99ae026b54d3115c1c4c40a7d3b493

SHA1
8d4394c641ddf5ef2daf104700412995d624fd11

SHA256
fe9d54bd132eccad9f1520312134ab4c0d3f51a5b9cdbe92d23da017e793d48c

SHA512
ed50c47e94a7594e27463b07a4f8d46fd53426e2cd9510a500d5c323e45ab0b78b9eaa1b6427ced935efd148e0c045c76593a9af0f7b2ea2a4ba8c3d37b7f273

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-24EKA.tmp\c1eff3689daf9190061421fb035524f0.tmp

Filesize
680KB

MD5
cb7bc497c49897635644627950f2d080

SHA1
09589343a3b3376d2dc8074c531a2ea6f0ffb781

SHA256
85e2b045b8852b0b3a80b17c4cb5deb86ae4994ab823842a64455ef94a1988ae

SHA512
e23c8686675bbe680fcd924aa73940a3bd7484c77e35074274736e4825ed52c7f35ee945667b46724f7502154aae050bbfd17415917622b396fc8821acf2a5d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UP6RG.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1520-39-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/1520-43-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/1520-40-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-57-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-81-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-99-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-46-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-96-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-92-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/2644-49-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-91-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/2644-53-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-54-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-90-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-60-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-63-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-66-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/2644-67-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-68-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/2644-74-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-77-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-78-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/2644-87-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/2644-84-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/3928-7-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/3928-50-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/3928-48-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4760-0-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/4760-47-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/4760-2-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download

Analysis

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