bc5e4639959c363e3526549b9983f3c7cdc182f78e8dff3ae76b2d7b023d488b

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 06:46

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General

Target

bc5e4639959c363e3526549b9983f3c7cdc182f78e8dff3ae76b2d7b023d488b.dll
Size

76KB
MD5

f283cdbf41e9fdb631c03d6cafd0065d
SHA1

f68fc093f2944a4c7e94556fa3d0fbe23392e672
SHA256

bc5e4639959c363e3526549b9983f3c7cdc182f78e8dff3ae76b2d7b023d488b
SHA512

f4bfcbbe80e477910c43c2393bdc27c0cf95d76eea76028121f40eebd547dbe26bb1c807d70ea784f758a97a51f66e780b250c990b53eb671d983bc41a04993b
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZxhDE:c8y93KQjy7G55riF1cMo03LpE

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2876-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2876-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2876-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2740 2876 WerFault.exe rundll32.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 2876 rundll32.exe

pid	pid_target	process	target process
2740	2876	WerFault.exe	rundll32.exe

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

description	pid	process
Token: SeDebugPrivilege	2876	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2880 wrote to memory of 2876	2880	rundll32.exe	rundll32.exe
PID 2876 wrote to memory of 2740	2876	rundll32.exe	WerFault.exe
PID 2876 wrote to memory of 2740	2876	rundll32.exe	WerFault.exe
PID 2876 wrote to memory of 2740	2876	rundll32.exe	WerFault.exe
PID 2876 wrote to memory of 2740	2876	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc5e4639959c363e3526549b9983f3c7cdc182f78e8dff3ae76b2d7b023d488b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc5e4639959c363e3526549b9983f3c7cdc182f78e8dff3ae76b2d7b023d488b.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2876 -s 236
    3⤵
    - Program crash
    PID:2740

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/2876-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2876-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2876-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2876-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download