socks5systemz | 00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb

General

Target

00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe
Size

2.6MB
MD5

45f188610c01787b9a2a93ccc921ed17
SHA1

b7a2e6d5d43caf74b7942a3635d93ddf2000aac7
SHA256

00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb
SHA512

ce6f1507e24e7077d5c08778ba48d9a7944aa2d923dcd571335d12964fe19c59477d1a9f1b7670ef2fcd891c09aaebdbe56a6fc55c2314895e190ca220839501
SSDEEP

49152:C914Zo5ndVKEmKGSV3eisk/YB70uivfH5Q3JRbB:MWZeLTGSVbi70uivRQ5P

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4644-61-0x00000000006F0000-0x0000000000792000-memory.dmp	family_socks5systemz
behavioral2/memory/4644-84-0x00000000006F0000-0x0000000000792000-memory.dmp	family_socks5systemz
behavioral2/memory/4644-85-0x00000000006F0000-0x0000000000792000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp
4644	maxizoomplayer32.exe

Loads dropped DLL 1 IoCs

pid	Process
4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.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

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	maxizoomplayer32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp
4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 4288	4860	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe	83
PID 4860 wrote to memory of 4288	4860	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe	83
PID 4860 wrote to memory of 4288	4860	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe	83
PID 4288 wrote to memory of 4644	4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp	87
PID 4288 wrote to memory of 4644	4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp	87
PID 4288 wrote to memory of 4644	4288	00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp	87

C:\Users\Admin\AppData\Local\Temp\00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe
"C:\Users\Admin\AppData\Local\Temp\00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\is-1RRD6.tmp\00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1RRD6.tmp\00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp" /SL5="$901BE,2499733,56832,C:\Users\Admin\AppData\Local\Temp\00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Users\Admin\AppData\Local\Maxi Zoom Player\maxizoomplayer32.exe
    "C:\Users\Admin\AppData\Local\Maxi Zoom Player\maxizoomplayer32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4644

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

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Downloads

C:\Users\Admin\AppData\Local\Maxi Zoom Player\maxizoomplayer32.exe

Filesize
2.1MB

MD5
85e8a33f0cd09ad06cf2a287a0aa707b

SHA1
1d3d00f2342bf07cde5a1f1a9c43ce407daa3328

SHA256
4e9760cec2601b6de884b0955c7d79b3df0483acced5b5276a9c9677671ef8f8

SHA512
d5eeb092a2fa8cc1dea6ed51d37e4c12555fcfbe12bb5e48523599bb42f9c732088679848865b24da727d3e3b6aee42fd25cdc15549119888aa5371240099f18

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1RRD6.tmp\00f2fa4f20eed6da2bd968273d64d711e15ff67083bc447360e5c13c44342ebb.tmp

Filesize
690KB

MD5
2b7ac0af5539853c5df05def7958fb39

SHA1
cdfdf87a3f09c6e3bc19a6feb8da396d13284b8f

SHA256
ef036ff54c2d48cfc5078a6ecc870b2078f70eae0a1f3ab0232d9e0623318f9b

SHA512
e3aed8558bd83d885495aa05a950cef02191ee63b1614fa2f813679d7d39dba6627243bbaa513f25063e2f205e57715be8723283b965a518a47c10b2eafe480a

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/4288-41-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4288-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4644-51-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-60-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-40-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-37-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-92-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-89-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-43-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-45-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-48-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-85-0x00000000006F0000-0x0000000000792000-memory.dmp

Filesize
648KB

Download
memory/4644-54-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-57-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-61-0x00000000006F0000-0x0000000000792000-memory.dmp

Filesize
648KB

Download
memory/4644-36-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-67-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-68-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-71-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-74-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-77-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-80-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-83-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download
memory/4644-84-0x00000000006F0000-0x0000000000792000-memory.dmp

Filesize
648KB

Download
memory/4860-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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