3278b79e1d7f019d7a8d9f092853619b730bf499a544d2315f87b05f68a43e11

General

Target

42dd01e971b71bb9e62f068fa79d68d3.dll
Size

540KB
MD5

42dd01e971b71bb9e62f068fa79d68d3
SHA1

00de4532b08d66eccf83fde22a9ebe50c576749b
SHA256

3278b79e1d7f019d7a8d9f092853619b730bf499a544d2315f87b05f68a43e11
SHA512

28cb61b676f721479be2b6f2a0ef49fe34b5c57f01fc5ba52ed5a1a47929a15cad9eec497f819015e74bc638fdff8789041269b01a1f9ddcbc11482939cf45ae
SSDEEP

6144:Jzt4VYcPTu0xQZIJBvW9v5wlgInmCg0j2b2HTPlccgVPif6hF5:hCPq0xzsR5s/m70jOweN

Score

7^/10

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\LocalServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\ProgID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\TypeLib	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\Version	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\VersionIndependentProgID	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\AppID = "{03837503-098b-11d8-9414-505054503030}"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\Version\ = "1.0"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\InprocServer32\ = "%SystemRoot%\\SysWow64\\pla.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\InprocServer32\ThreadingModel = "both"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\LocalServer32\ = "%SystemRoot%\\SysWow64\\plasrv.exe"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\TypeLib\ = "{03837500-098B-11D8-9414-505054503030}"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\ProgID\ = "PLA.LegacyTraceSessionCollection.1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\VersionIndependentProgID\ = "PLA.LegacyTraceSessionCollection"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7517112D-B1F6-49F5-B1F6-49F5B1F649F5}\ = "LegacyTraceSessionCollection"	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1436	rundll32.exe
Token: SeIncBasePriorityPrivilege	1436	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28
PID 1104 wrote to memory of 1436	1104	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\42dd01e971b71bb9e62f068fa79d68d3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\42dd01e971b71bb9e62f068fa79d68d3.dll,#1
  2⤵
  - Checks BIOS information in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:1436

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

memory/1436-0-0x0000000000140000-0x00000000001A4000-memory.dmp

Filesize
400KB

Download
memory/1436-5-0x0000000000140000-0x00000000001A4000-memory.dmp

Filesize
400KB

Download
memory/1436-6-0x0000000010000000-0x00000000100CD000-memory.dmp

Filesize
820KB

Download
memory/1436-7-0x0000000010000000-0x00000000100CD000-memory.dmp

Filesize
820KB

Download
memory/1436-8-0x0000000010000000-0x00000000100CD000-memory.dmp

Filesize
820KB

Download
memory/1436-9-0x0000000000140000-0x00000000001A4000-memory.dmp

Filesize
400KB

Download
memory/1436-10-0x0000000000140000-0x00000000001A4000-memory.dmp

Filesize
400KB

Download

Analysis

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