socks5systemz | d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485fe

General

Target

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe
Size

5.4MB
MD5

d92e3df3bd004ea9aaddbdbf2755a640
SHA1

7871276baebb1de975fb2b0def9b0b1bf3c21e11
SHA256

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485fe
SHA512

ca399b015d3b6864582c85b2e4650660054950f7b1aa5e5aebcdbad8f52639f36386d21a940615cc3859b875f13da07bf963a9bae667d1bc63ffcc026ff7436e
SSDEEP

98304:QNlppnxDTzbPwbHtN0tGN/jE6rvUDsyQ9mFYkRPp18cHKxokqGSoR42a:8lrxnCHtWGN/42MDRQMWEPHSgGq

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2156-189-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

Processes:

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmpmp4downloader.exe

pid	Process
4812	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp
2156	mp4downloader.exe

Loads dropped DLL 1 IoCs

Processes:

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp

pid	Process
4812	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp

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

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exed8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmpmp4downloader.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp4downloader.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp

pid	Process
4812	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exed8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp

description	pid	Process	procid_target
PID 1396 wrote to memory of 4812	1396	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe	83
PID 1396 wrote to memory of 4812	1396	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe	83
PID 1396 wrote to memory of 4812	1396	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe	83
PID 4812 wrote to memory of 2156	4812	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp	87
PID 4812 wrote to memory of 2156	4812	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp	87
PID 4812 wrote to memory of 2156	4812	d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp	87

C:\Users\Admin\AppData\Local\Temp\d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe
"C:\Users\Admin\AppData\Local\Temp\d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\Temp\is-1CB5H.tmp\d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1CB5H.tmp\d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp" /SL5="$6021A,5443353,54272,C:\Users\Admin\AppData\Local\Temp\d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4812
- - C:\Users\Admin\AppData\Local\MP4 Downloader 3.22.3\mp4downloader.exe
    "C:\Users\Admin\AppData\Local\MP4 Downloader 3.22.3\mp4downloader.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2156

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 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\MP4 Downloader 3.22.3\mp4downloader.exe

Filesize
2.4MB

MD5
21992eccba0f2bc3ec3165c46b48dafb

SHA1
760f08834018d8a1650ba8227e29d039d1a834ca

SHA256
e1684084be453be5c2c73202e179e137047b6babdf65048d284504d7acdad95c

SHA512
6dd05f5ec4076ca986c11298bf0104f08d0a6e0a5b64f4b0e792d382dac8e022fd5b1cfc7996f8b908dcc2a9040ebb4c3360e47dd0fa80ebddff7945c88b6585

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1CB5H.tmp\d8f3ea2acc1ac0b2f90d1f239430ad80ea9446ab405843a943856f5d205485feN.tmp

Filesize
688KB

MD5
db76049d17ef2006ef9b1311ee1e8013

SHA1
da3990fbe0d5bb85ae7e0a16fc8d6ba98ed48cff

SHA256
7b5e137573479b2f6b50cbcc3869fc7a3a3b266f05d47c300fca03b73717993e

SHA512
e8f1a7cdaa02a6db3c305094fe81f5c4f8b8cdcbca8eecd6af27dae96f51da7bbe8e318e7e00dab0a2e42d71d412e25d321a0c2e2a645d20c7cffe2eea57dc77

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-AS7VV.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1396-170-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1396-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1396-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2156-176-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-185-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-168-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-208-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-164-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-173-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-205-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-179-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-182-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-165-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-188-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-189-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/2156-195-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-198-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-199-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/2156-202-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/4812-16-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4812-169-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads