991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26e

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 15:21

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General

Target

991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26eN.dll
Size

203KB
MD5

245e85af2194623c1be2e272fbfb5890
SHA1

77584f40b3e6ea0c620cc777cf88657aa4e8aa23
SHA256

991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26e
SHA512

1b15d6f296fcd0371f1c124f97967a70fbbccaaadd5ea3d0378434de4340f0df9187ceddbb51bea545c184dd2351bdff26fcc5f4445d5560fbc041115b774b44
SSDEEP

3072:hJ8IMILmCa3yx6oFEdgVXnFYf7C9Ugfxm3Nep9viMS8yh4:0kmCaiEoFEd+FYOtxmdeviMNya

Score

5^/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/3116-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3116-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4456	3116	WerFault.exe	82

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	3116	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 3116	2348	rundll32.exe	82
PID 2348 wrote to memory of 3116	2348	rundll32.exe	82
PID 2348 wrote to memory of 3116	2348	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\991fd222a3daa7b0b03612753a0183e7487b82372b2872092f75031f4e0ac26eN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3116
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 720
    3⤵
    - Program crash
    PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3116 -ip 3116
1⤵
PID:4608

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/3116-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/3116-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download