2d4bbf73a00e797280790418fa290574efac87545b885e4a04e33b89f1271601

Analysis

max time kernel
141s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28/05/2024, 19:58

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General

Target
2d4bbf73a00e797280790418fa290574efac87545b885e4a04e33b89f1271601.dll
Size 76KB
Sample240528-yp4pfaaa6y
SHA256 2d4bbf73a00e797280790418fa290574efac87545b885e4a04e33b89f1271601
MD5 d478ea69579b7a7586399a7c1212fe34
SHA1 c6e8bbeb17862089ffe438285cbd841f9485dd8c
SHA512 dde9920dd5e8ae067f186814ad63d86ed19d6e963a19748fbc347a0c456f2119cf58543720c73d250b822e2747d63eccc65716348fe838659e6c54eb73970c82
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZyR:c8y93KQjy7G55riF1cMo03Y
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral2/memory/2380-0-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/2380-1-0x0000000010000000-0x0000000010030000-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
behavioral2/memory/2380-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2380-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2380	rundll32.exe
2380	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 2380	1164	rundll32.exe	82
PID 1164 wrote to memory of 2380	1164	rundll32.exe	82
PID 1164 wrote to memory of 2380	1164	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d4bbf73a00e797280790418fa290574efac87545b885e4a04e33b89f1271601.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d4bbf73a00e797280790418fa290574efac87545b885e4a04e33b89f1271601.dll,#1
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2380

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/2380-0-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/2380-1-0x0000000010000000-0x0000000010030000-memory.dmp

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