socks5systemz | 081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7

General

Target

081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe
Size

5.1MB
MD5

87f2cbeb9961119c0b94bf927464b07c
SHA1

82f559f5c8c4026d682f86f92d92aeed9dda65de
SHA256

081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7
SHA512

1e361a37b9eff43d1132b4ca0c46015ee6b6f8224a8b444d057905a1866f9706a09f4ee7e9bfe4dc29e526ee339604936815a57366f6114a6ed453808370423e
SSDEEP

98304:CSJ32iFLlR83ezHvNX8fzEs8JNHWZMawVhJ/74/pMdXQYDwcr4e+p5Qx2:HJVZaOzNMfz98JuwVhJ/UxMlate+p5Qw

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/4740-87-0x0000000000B10000-0x0000000000BB2000-memory.dmp	family_socks5systemz
behavioral1/memory/4740-110-0x0000000000B10000-0x0000000000BB2000-memory.dmp	family_socks5systemz
behavioral1/memory/4740-111-0x0000000000B10000-0x0000000000BB2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp
2628	mp3doctorfree.exe
4740	mp3doctorfree.exe

Loads dropped DLL 1 IoCs

pid	Process
528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.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
528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3544 wrote to memory of 528	3544	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe	85
PID 3544 wrote to memory of 528	3544	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe	85
PID 3544 wrote to memory of 528	3544	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe	85
PID 528 wrote to memory of 2628	528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp	89
PID 528 wrote to memory of 2628	528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp	89
PID 528 wrote to memory of 2628	528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp	89
PID 528 wrote to memory of 4740	528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp	90
PID 528 wrote to memory of 4740	528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp	90
PID 528 wrote to memory of 4740	528	081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp	90

C:\Users\Admin\AppData\Local\Temp\081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe
"C:\Users\Admin\AppData\Local\Temp\081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3544
- C:\Users\Admin\AppData\Local\Temp\is-HB399.tmp\081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-HB399.tmp\081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp" /SL5="$E0052,5130465,54272,C:\Users\Admin\AppData\Local\Temp\081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Users\Admin\AppData\Local\MP3Doctor Free 2022\mp3doctorfree.exe
    "C:\Users\Admin\AppData\Local\MP3Doctor Free 2022\mp3doctorfree.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2628
- - C:\Users\Admin\AppData\Local\MP3Doctor Free 2022\mp3doctorfree.exe
    "C:\Users\Admin\AppData\Local\MP3Doctor Free 2022\mp3doctorfree.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4740

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\MP3Doctor Free 2022\mp3doctorfree.exe

Filesize
3.7MB

MD5
cb85328072de1e83e649cb06d53d47b9

SHA1
b7212b5c192473e4176cf3655414ebb10f05d154

SHA256
4fdf7ed3fde9173543a8db72a5e3f8679cafabf0960d7e67cc1e319615b3e940

SHA512
3fe186564f2676bf3484b0522615c11f08779bcbe3c093c8d7a804aeb1fec4e98e03951961be6fe73b4a666c5ef56a1dfe6ca94c1406975c63fdc5bcce620880

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-02850.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HB399.tmp\081f30b34d4a55196fc4653de5eee38f4514fe51f63b39d35af34c2c3c68e8a7.tmp

Filesize
680KB

MD5
a8acbb635dadcdb78f1859944862815c

SHA1
83872731d4effcfa9d15612316210b2e76da02e4

SHA256
8727197eb8363c1c5fdb30b8a98323964d2444a38c3436d1d8c4e64e60c5789b

SHA512
f671adc769c422ef3eb651447c3aed365f70ce62f7f442b5b748d5f7f269be9b657711f2489c6a1b1132495f59f18fd6e4b683c029dd628b24b98a07da264cf7

Download Submit
memory/528-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/528-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2628-59-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/2628-60-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/2628-63-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/2628-64-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/3544-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3544-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3544-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4740-75-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-89-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-71-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-74-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-67-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-78-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-81-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-84-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-87-0x0000000000B10000-0x0000000000BB2000-memory.dmp

Filesize
648KB

Download
memory/4740-68-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-94-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-97-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-100-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-103-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-106-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-109-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-110-0x0000000000B10000-0x0000000000BB2000-memory.dmp

Filesize
648KB

Download
memory/4740-111-0x0000000000B10000-0x0000000000BB2000-memory.dmp

Filesize
648KB

Download
memory/4740-115-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download
memory/4740-118-0x0000000000400000-0x00000000007B7000-memory.dmp

Filesize
3.7MB

Download

Analysis

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