1e1bad64487a836886f5b0648f45392a148ee1a7af30af070f9af378fdf91780

Analysis

max time kernel
103s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 16:18

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General

Target
5a2fb36aa2d803e94ca888f0e71f2de0N.dll
Size 76KB
Sample240817-tr655avcpc
SHA256 1e1bad64487a836886f5b0648f45392a148ee1a7af30af070f9af378fdf91780
MD5 5a2fb36aa2d803e94ca888f0e71f2de0
SHA1 e558b647cf87820099bbc380ab937e54cd45ff2f
SHA512 064fdedde500f0c238989ba105d9e1262f21b9008d063e1aa3cb11ec0f7b43064a8850b9b184da11bc92f7de46199fb5fb5b78929542b3d7f975147fa4bb927b
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZXGagLE:c8y93KQjy7G55riF1cMo03RGaZ
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3520-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3520-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3040	3520	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3520	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 3520	1160	rundll32.exe	84
PID 1160 wrote to memory of 3520	1160	rundll32.exe	84
PID 1160 wrote to memory of 3520	1160	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a2fb36aa2d803e94ca888f0e71f2de0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a2fb36aa2d803e94ca888f0e71f2de0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3520
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 704
    3⤵
    - Program crash
    PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3520 -ip 3520
1⤵
PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3520-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/3520-1-0x0000000010000000-0x0000000010030000-memory.dmp