socks5systemz | 44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4d

General

Target

44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe
Size

4.0MB
MD5

a70e1a87e7012b7b39543baebef3d390
SHA1

be920d07aae48c81fb613b32b84e0c9b096b75f4
SHA256

44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4d
SHA512

656f3a7fe98aac2f78dcfbc5c66624f8377ef21fc62b103efb5b7e887b875dd397ac35c513c701d9a9c64ce5688b73bdf160b16f3e5a6b9d14e14df02fc7a409
SSDEEP

98304:Ix3pSq/4xfengXMh/UY9q3UcdrUB9c7FyL+0+IXjeR:nq/4ReEO/UYgEcdrUB/C0+IeR

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3312-100-0x0000000000A00000-0x0000000000AA2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp
3312	codecsportable3264.exe

Loads dropped DLL 1 IoCs

pid	Process
2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	codecsportable3264.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp
2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 2116	996	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe	84
PID 996 wrote to memory of 2116	996	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe	84
PID 996 wrote to memory of 2116	996	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe	84
PID 2116 wrote to memory of 3312	2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp	86
PID 2116 wrote to memory of 3312	2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp	86
PID 2116 wrote to memory of 3312	2116	44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp	86

C:\Users\Admin\AppData\Local\Temp\44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe
"C:\Users\Admin\AppData\Local\Temp\44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:996
- C:\Users\Admin\AppData\Local\Temp\is-1U7HM.tmp\44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1U7HM.tmp\44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp" /SL5="$80044,3939676,54272,C:\Users\Admin\AppData\Local\Temp\44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.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:2116
- - C:\Users\Admin\AppData\Local\Dan Codecs Portable\codecsportable3264.exe
    "C:\Users\Admin\AppData\Local\Dan Codecs Portable\codecsportable3264.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3312

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\Dan Codecs Portable\codecsportable3264.exe

Filesize
2.9MB

MD5
1ed49000d26fe2aed4f2a161802390fc

SHA1
3426beea7d12fb45051e34fe81896c1c28d93180

SHA256
93b9f25ae3488c3009d118cb6505852ecba822aa87bd3d46b79d5bb79612c3a7

SHA512
76ecba80746d70132092a168556733f383da8dae9f0887304f6564c8c54631c79140d1c59a903a07f9927356d1fb229711d4902c87052af2080da3a5f0032ab1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1U7HM.tmp\44cbbfb228edef096c3c68f46df7fb1af230f605ac4b66dd641711a566b14a4dN.tmp

Filesize
689KB

MD5
510ef339689e1a6db9b2763077f040f1

SHA1
fd96eca0fb94d6700452f6630ef502ff22bc9afd

SHA256
51c5ccef03fb4fb77de3ace67d2e3bc924cf5a5863129c9dea3340b47b201f9d

SHA512
1adf274670bf71cefcc85f6909e9b6c0c06c634423141c496069fe17067cfa2e9eb8fbdfdc910c4369d280e2da8225f576efa7d84a34292f55e6d5daa02da5a5

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SVG0G.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/996-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/996-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-82-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2116-81-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2116-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3312-87-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-100-0x0000000000A00000-0x0000000000AA2000-memory.dmp

Filesize
648KB

Download
memory/3312-77-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-84-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-76-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-90-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-93-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-96-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-101-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-80-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-107-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-108-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-110-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-112-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-115-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-118-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/3312-121-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download

Analysis

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