socks5systemz | cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e

General

Target

cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe
Size

6.7MB
MD5

39c9e80e32b15c9010648e422e412ea1
SHA1

7053c8f8e505cbb18b4fa4cbc2e732b4f01f5362
SHA256

cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e
SHA512

430fb5def8e95c34f5b2a01ced0d07f9d10c3709795158e670a19b48e18701f8d9a5e5ea5a75d07661670f0ea7ec0ec5401fc0d502c005c5e1f2121b7e200499
SSDEEP

98304:yieZa9eR1unPOAySJBA6UoVcV3O/LBNO10XGFudYb5xAuNTkQa0/d5N20TfMnkj:34uPGAZL2pOTBNqQGNBNXaC5cMfwq

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/876-81-0x00000000009C0000-0x0000000000A62000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1444	is-OGL6S.tmp
5016	mp3cdripperbeta32_64.exe
876	mp3cdripperbeta32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
1444	is-OGL6S.tmp

Unexpected DNS network traffic destination 2 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
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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-OGL6S.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp3cdripperbeta32_64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp3cdripperbeta32_64.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 1444	2324	cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe	73
PID 2324 wrote to memory of 1444	2324	cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe	73
PID 2324 wrote to memory of 1444	2324	cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe	73
PID 1444 wrote to memory of 5016	1444	is-OGL6S.tmp	74
PID 1444 wrote to memory of 5016	1444	is-OGL6S.tmp	74
PID 1444 wrote to memory of 5016	1444	is-OGL6S.tmp	74
PID 1444 wrote to memory of 876	1444	is-OGL6S.tmp	75
PID 1444 wrote to memory of 876	1444	is-OGL6S.tmp	75
PID 1444 wrote to memory of 876	1444	is-OGL6S.tmp	75

C:\Users\Admin\AppData\Local\Temp\cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe
"C:\Users\Admin\AppData\Local\Temp\cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\is-D08PJ.tmp\is-OGL6S.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-D08PJ.tmp\is-OGL6S.tmp" /SL4 $7020C "C:\Users\Admin\AppData\Local\Temp\cef8b12b6541259d5fc2001e648b8fe33d58a001745a2bbe4cc9068bb961de2e.exe" 6765812 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Users\Admin\AppData\Local\MP3 CD Ripper Beta\mp3cdripperbeta32_64.exe
    "C:\Users\Admin\AppData\Local\MP3 CD Ripper Beta\mp3cdripperbeta32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5016
- - C:\Users\Admin\AppData\Local\MP3 CD Ripper Beta\mp3cdripperbeta32_64.exe
    "C:\Users\Admin\AppData\Local\MP3 CD Ripper Beta\mp3cdripperbeta32_64.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:876

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\MP3 CD Ripper Beta\mp3cdripperbeta32_64.exe

Filesize
3.1MB

MD5
969b33e0941fcd6a0e503c358f0ba03e

SHA1
28c81cc5df08c18b0f0e469510be8a9c9e3f402f

SHA256
44a960a466af20797daf0c7732a04d0195bea638242430d52cc387deda87b6f3

SHA512
ea007d6fcf7d2dd4b3d566195ba2c6450a623b78587a56c7494f32911ebcdb634d25293dfd47ef8eae698525b67c137392cce41a1d8faaea74c4b65a99009b88

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-D08PJ.tmp\is-OGL6S.tmp

Filesize
642KB

MD5
6580f6f26daf83c5e4d3e3b28e2f70f6

SHA1
5bc35126a341e038b96923db25c3f5424a631c5e

SHA256
e241bd09fc67344895f45de4fb9f147d618a8a5bcec360c83882675e75ebd672

SHA512
8f042bbbaec8f0a7cb31cfa44ed0e3d72100e3f3473f442e06ffc7f90322da4cb54979ba51365033cba927b801225d339e64b3b31c3b57483b76bd006908dd36

Download Submit
\Users\Admin\AppData\Local\Temp\is-PN54P.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/876-103-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-106-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-125-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-122-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-119-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-115-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-63-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-112-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-109-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-66-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-69-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-72-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-75-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-78-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-88-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-97-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-81-0x00000000009C0000-0x0000000000A62000-memory.dmp

Filesize
648KB

Download
memory/876-91-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-94-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-85-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/876-100-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/1444-12-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/1444-65-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/2324-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/2324-64-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2324-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/5016-60-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/5016-58-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download
memory/5016-57-0x0000000000400000-0x000000000071A000-memory.dmp

Filesize
3.1MB

Download

Analysis

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