21c129130af199e63f181b6b40fc12779304ce85ba4b8dc0fe08003b368624a6

Analysis

max time kernel
93s
max time network
147s
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 21:06

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General

Target

21c129130af199e63f181b6b40fc12779304ce85ba4b8dc0fe08003b368624a6.dll
Size

76KB
MD5

d75eedbba3a1b7661d2e493c06d6eaa3
SHA1

ddc2f3d5de6d50eab2679b163b09b3674f73c6b8
SHA256

21c129130af199e63f181b6b40fc12779304ce85ba4b8dc0fe08003b368624a6
SHA512

77d13a85dbc39074f1498f8570875eb79ee8b673eb8caabd3397c18fec3c4dbd0a73d1a0ebc3fd3b93c320926ef54b32f6d3191be14a89a2373db33aebe6daa8
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZtmrhQN:c8y93KQjy7G55riF1cMo03er0

Score

5^/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/696-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/696-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3584	696	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	696	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 696	2500	rundll32.exe	82
PID 2500 wrote to memory of 696	2500	rundll32.exe	82
PID 2500 wrote to memory of 696	2500	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\21c129130af199e63f181b6b40fc12779304ce85ba4b8dc0fe08003b368624a6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\21c129130af199e63f181b6b40fc12779304ce85ba4b8dc0fe08003b368624a6.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 696
    3⤵
    - Program crash
    PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 696 -ip 696
1⤵
PID:4428

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/696-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/696-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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