1b0773d5cb917daf707d51e286416946707d0b371d1653135f8aebc80aef850d

Analysis

max time kernel
103s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 02:02

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General

Target
b3442b612b5541c841e2e99c293844c0N.dll
Size 76KB
Sample240820-cf6lsaybpf
SHA256 1b0773d5cb917daf707d51e286416946707d0b371d1653135f8aebc80aef850d
MD5 b3442b612b5541c841e2e99c293844c0
SHA1 6d10e8274e493a0cf20f93633f61078783a5f4f7
SHA512 a0905fe9a14db7a2db23812ab9a35b0f48afd9e51d57ca359ac3bbf84684e0879237faaeeb5f29652aa23fb17b4fcdd3222d4bb95303281525b9ddb9de0289cf
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZZ9vs2:c8y93KQjy7G55riF1cMo03Ns2
MD5 SHA1 SHA512 SSDEEP

Score

7^/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/3256-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3256-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2900	3256	WerFault.exe	84

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	3256	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 3256	4744	rundll32.exe	84
PID 4744 wrote to memory of 3256	4744	rundll32.exe	84
PID 4744 wrote to memory of 3256	4744	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3442b612b5541c841e2e99c293844c0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3442b612b5541c841e2e99c293844c0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3256
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3256 -s 704
    3⤵
    - Program crash
    PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3256 -ip 3256
1⤵
PID:1088

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/3256-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/3256-1-0x0000000010000000-0x0000000010030000-memory.dmp