socks5systemz | aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3

General

Target

aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe
Size

5.3MB
MD5

29f145cf1d892a46ae5fcd4ecd822254
SHA1

16742501a4650e9461d322eec8b3e379b23a0e89
SHA256

aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3
SHA512

d79e69aa4d9bb3ff584a1d651295dab2e149c60f85dd6a49351ec57e4420ec2624fbc7425232f830474c7db191b5bfb7a75d5d42af8a97459da35b5af1df0e87
SSDEEP

98304:m0UyK++/44l8tOkBCsGtacANDG4GJb3fIqnsNUXBnXjf+yo3nx2AC4IgKAt2:7pKtgxGt/ANDGHb3fzsNUXBXr/ox23g6

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4076-92-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz
behavioral2/memory/4076-118-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz
behavioral2/memory/4076-119-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp
2124	maxpad32.exe
4076	maxpad32.exe

Loads dropped DLL 3 IoCs

pid	Process
2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp
2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp
2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.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
2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2264	1728	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe	79
PID 1728 wrote to memory of 2264	1728	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe	79
PID 1728 wrote to memory of 2264	1728	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe	79
PID 2264 wrote to memory of 2124	2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp	81
PID 2264 wrote to memory of 2124	2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp	81
PID 2264 wrote to memory of 2124	2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp	81
PID 2264 wrote to memory of 4076	2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp	82
PID 2264 wrote to memory of 4076	2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp	82
PID 2264 wrote to memory of 4076	2264	aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp	82

C:\Users\Admin\AppData\Local\Temp\aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe
"C:\Users\Admin\AppData\Local\Temp\aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\is-NUTQD.tmp\aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NUTQD.tmp\aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp" /SL5="$5020A,5304385,54272,C:\Users\Admin\AppData\Local\Temp\aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
    "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2124
- - C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
    "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4076

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
ab220a056f86d3a7119d88ea5248a782

SHA1
e952b8ea6d52baa4131df3352c2d934f93ada723

SHA256
bf9d702a7bb35ba48ce3c75fb2d93ca08b3bbea62e72a62a152d23ef3b31742f

SHA512
8f81ae2bf47684ca427f1826db7dcb69577ffa88b394f1147cbc2520720c910d5faddcfd081db893442b9a33b2a86d14b1c9248610cebe7c33d53818ce268298

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FCE0B.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FCE0B.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NUTQD.tmp\aec503edc07e62e4a704417b5330bd19f45d2b4489b6ca378a2790dc55c5d6b3.tmp

Filesize
680KB

MD5
3c22f4ba1a54bd7c893cda0d06a453a0

SHA1
a7e446f9a63c244326ce97be963e07fe2937c456

SHA256
c6bc0aff8501f57e2a6c1e3b297a39a4949cf52f7a167f804145745dbeb63f8c

SHA512
387c8babf5557569dab2830332f2bf961477a1aa6e918600f94d02fa2c37ae79000b02cf16eaa073288f42fec8378043f1d3163159d36f82ccc319468a56e21f

Download Submit
memory/1728-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1728-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1728-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2124-71-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2124-69-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2124-65-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2124-66-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/2264-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2264-77-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4076-81-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-97-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-78-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-73-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-82-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-85-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-88-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-91-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-92-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/4076-75-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-102-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-105-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-108-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-111-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-114-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-117-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-118-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/4076-119-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/4076-123-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/4076-126-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download

Analysis

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