socks5systemz | 9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73

General

Target

9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe
Size

5.2MB
MD5

e782876b2b78d9a68bf5be1eb8651a7a
SHA1

c90701351490f9d3320033135b587107ff82ab26
SHA256

9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73
SHA512

c997cd0db819ae7db7b3bcf168958186315a923dab0780c0fad4ec305bee595f75e138b8c93496c1221544628e6add516b82709fa6214298a90d9c46513d71d3
SSDEEP

98304:m4ZYzAczn+8ffofGL5M+HZEq4+oilWZWxV12QQ7pw5N9Ir6qoHLa2:fZUnXfeWOeCyIr6tHe2

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/3164-93-0x00000000008E0000-0x0000000000982000-memory.dmp	family_socks5systemz
behavioral1/memory/3164-116-0x00000000008E0000-0x0000000000982000-memory.dmp	family_socks5systemz
behavioral1/memory/3164-117-0x00000000008E0000-0x0000000000982000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp
900	maxpad32.exe
3164	maxpad32.exe

Loads dropped DLL 3 IoCs

pid	Process
3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp
3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp
3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.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
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
3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 3248	4848	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe	83
PID 4848 wrote to memory of 3248	4848	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe	83
PID 4848 wrote to memory of 3248	4848	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe	83
PID 3248 wrote to memory of 900	3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp	85
PID 3248 wrote to memory of 900	3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp	85
PID 3248 wrote to memory of 900	3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp	85
PID 3248 wrote to memory of 3164	3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp	87
PID 3248 wrote to memory of 3164	3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp	87
PID 3248 wrote to memory of 3164	3248	9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp	87

C:\Users\Admin\AppData\Local\Temp\9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe
"C:\Users\Admin\AppData\Local\Temp\9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Users\Admin\AppData\Local\Temp\is-LHAFN.tmp\9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LHAFN.tmp\9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp" /SL5="$501F2,5226844,54272,C:\Users\Admin\AppData\Local\Temp\9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3248
- - C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
    "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:900
- - C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
    "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3164

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\MaxPad\maxpad32.exe

Filesize
2.3MB

MD5
2bd1ad6f237fd059f89c208f8257b3eb

SHA1
9df902243f295534e685ab0d50d199a0683a6cef

SHA256
d7bcca79b2537727ec38a922ecfb41ec579f09eb438c8fb1ae2bf43e484fe052

SHA512
072fb794d1a20522df638cde6b88bb958ed53a78908f92f02029d15a8c13dfadfe9ad2ac3ed9910328ad29b51ad0a6ec1f2290387185b47415dc645ef80c9c15

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1CAQN.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1CAQN.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LHAFN.tmp\9a671aa7a8fa77eb8b8525604977183cb4191561fba184ff904b94c9bb374a73.tmp

Filesize
680KB

MD5
3c22f4ba1a54bd7c893cda0d06a453a0

SHA1
a7e446f9a63c244326ce97be963e07fe2937c456

SHA256
c6bc0aff8501f57e2a6c1e3b297a39a4949cf52f7a167f804145745dbeb63f8c

SHA512
387c8babf5557569dab2830332f2bf961477a1aa6e918600f94d02fa2c37ae79000b02cf16eaa073288f42fec8378043f1d3163159d36f82ccc319468a56e21f

Download Submit
memory/900-66-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/900-71-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/900-69-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/900-65-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-81-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-90-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-124-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-74-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-121-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-117-0x00000000008E0000-0x0000000000982000-memory.dmp

Filesize
648KB

Download
memory/3164-77-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-80-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-116-0x00000000008E0000-0x0000000000982000-memory.dmp

Filesize
648KB

Download
memory/3164-84-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-87-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-115-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-93-0x00000000008E0000-0x0000000000982000-memory.dmp

Filesize
648KB

Download
memory/3164-94-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-100-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-103-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-106-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-109-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3164-112-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3248-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3248-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4848-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4848-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4848-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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