1a3cfb860a5f3b63a4835a36569e518ce91ff55609b3b9014d7c3212ddc4d4fb

Analysis

max time kernel
15s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 01:33

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General

Target

1a3cfb860a5f3b63a4835a36569e518ce91ff55609b3b9014d7c3212ddc4d4fbN.dll
Size

76KB
MD5

44dfa7fd136fb456a4c27b8fd7f35430
SHA1

0b6385a9a192a3b2fb79e77a87e7a275e35d3ffc
SHA256

1a3cfb860a5f3b63a4835a36569e518ce91ff55609b3b9014d7c3212ddc4d4fb
SHA512

4ab87ef650978be09f2fae579bce9af2d027e105c9a7bb64d80aabceac35e321cb383ec97e92ae2549810b017048503458d0bc00dfa380381d6f10a4835fd978
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z3Qm:c8y93KQjy7G55riF1cMo03N

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2916-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2916-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2916-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2916-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2584	2916	WerFault.exe	30

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	2916	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2500 wrote to memory of 2916	2500	rundll32.exe	30
PID 2916 wrote to memory of 2584	2916	rundll32.exe	31
PID 2916 wrote to memory of 2584	2916	rundll32.exe	31
PID 2916 wrote to memory of 2584	2916	rundll32.exe	31
PID 2916 wrote to memory of 2584	2916	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a3cfb860a5f3b63a4835a36569e518ce91ff55609b3b9014d7c3212ddc4d4fbN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a3cfb860a5f3b63a4835a36569e518ce91ff55609b3b9014d7c3212ddc4d4fbN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 328
    3⤵
    - Program crash
    PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/2916-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2916-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2916-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2916-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download