261be99dfe0c6e519d254fcc79ab5932eff4a9aacf41101825dc65ed8c64a5b3

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 20:04

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General

Target

261be99dfe0c6e519d254fcc79ab5932eff4a9aacf41101825dc65ed8c64a5b3.dll
Size

76KB
MD5

8bd9dad1b4c848dadca8aee75df0cb78
SHA1

336c326fdea7238a2860096e5608e92ae29b6474
SHA256

261be99dfe0c6e519d254fcc79ab5932eff4a9aacf41101825dc65ed8c64a5b3
SHA512

efe76e1293d7a5f44f64d33ded856f8fddf170c417e6c2153f189c4117f397fc64885638275865b3cfca216114fa5625a5ed32015071910ed01289ba9bf625ea
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z6n/aQjatFt:c8y93KQjy7G55riF1cMo03i/aKavt

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral1/memory/2056-0-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/2056-1-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2056-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2056-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2196	2056	WerFault.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2056 wrote to memory of 2196	2056	rundll32.exe	29
PID 2056 wrote to memory of 2196	2056	rundll32.exe	29
PID 2056 wrote to memory of 2196	2056	rundll32.exe	29
PID 2056 wrote to memory of 2196	2056	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\261be99dfe0c6e519d254fcc79ab5932eff4a9aacf41101825dc65ed8c64a5b3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\261be99dfe0c6e519d254fcc79ab5932eff4a9aacf41101825dc65ed8c64a5b3.dll,#1
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2056 -s 268
    3⤵
    - Program crash
    PID:2196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2056-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2056-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download