b637aab62951152ef53d4093b8aaa2fd366742c847d715a04e224af57ddb1613

Analysis

max time kernel
110s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 00:41

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General

Target

b637aab62951152ef53d4093b8aaa2fd366742c847d715a04e224af57ddb1613.dll
Size

203KB
MD5

3256f6e4638e60bc4f526452e2471d10
SHA1

7af2d006cce501ad5f8fe7d69055f4af9bc0e0ec
SHA256

b637aab62951152ef53d4093b8aaa2fd366742c847d715a04e224af57ddb1613
SHA512

850b9b84683ae275070ddaee90b3ac117c2673ab74fd7ccac1b36550359b6ea09afd34eb1b4ecb9adb84c6615e4808a9a2d6bdc451df8ec56ce392ffbbfefca0
SSDEEP

3072:hJ8IMILmCa3yx6oFEdgVXnFYf7C9Ugfxm3Nep9viMRZ8VYx:0kmCaiEoFEd+FYOtxmdeviMRmVS

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 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1036-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1036-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
396	1036	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	1036	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 1036	4648	rundll32.exe	82
PID 4648 wrote to memory of 1036	4648	rundll32.exe	82
PID 4648 wrote to memory of 1036	4648	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b637aab62951152ef53d4093b8aaa2fd366742c847d715a04e224af57ddb1613.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b637aab62951152ef53d4093b8aaa2fd366742c847d715a04e224af57ddb1613.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1036
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 704
    3⤵
    - Program crash
    PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1036 -ip 1036
1⤵
PID:2388

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/1036-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/1036-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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