4c228202985e2e7aee22ce643638777904b7723fd40b3844946f3344ab16ca2e

Analysis

max time kernel
90s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 17:46

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General

Target

4c228202985e2e7aee22ce643638777904b7723fd40b3844946f3344ab16ca2e.dll
Size

76KB
MD5

4078577f80d37c1fa94df6b4b6f7ff60
SHA1

d4e90ab73a40305dcb22b4ca630ee0c116bcfdbf
SHA256

4c228202985e2e7aee22ce643638777904b7723fd40b3844946f3344ab16ca2e
SHA512

4e641bd225a3dbba83923e6df7d60defa4fa5f1655c5610e36e488d0f97ab8b3de2b070a5ba7850e11eb37d1660b9b5be840fe3814175795b51464e119b73655
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zi7ut91:c8y93KQjy7G55riF1cMo03z

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 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2540-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2540-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2540-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process

1620 2540 WerFault.exe
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2540 rundll32.exe

pid	pid_target	process
1620	2540	WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	2540	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 2540	2464	rundll32.exe	rundll32.exe
PID 2540 wrote to memory of 1620	2540	rundll32.exe	WerFault.exe
PID 2540 wrote to memory of 1620	2540	rundll32.exe	WerFault.exe
PID 2540 wrote to memory of 1620	2540	rundll32.exe	WerFault.exe
PID 2540 wrote to memory of 1620	2540	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c228202985e2e7aee22ce643638777904b7723fd40b3844946f3344ab16ca2e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c228202985e2e7aee22ce643638777904b7723fd40b3844946f3344ab16ca2e.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 276
    3⤵
    - Program crash
    PID:1620

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

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Downloads

memory/2540-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2540-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2540-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download