99bf19b6656075bdfc0382cf54d03ffdd849f46490d4529c36674d07170ab2ca

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 13:39

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General

Target

99bf19b6656075bdfc0382cf54d03ffdd849f46490d4529c36674d07170ab2ca.dll
Size

76KB
MD5

8fc65cc9bf820a13057932fe3273ea89
SHA1

b3e48b989211fc45f9f1355eebf7864f88ac0970
SHA256

99bf19b6656075bdfc0382cf54d03ffdd849f46490d4529c36674d07170ab2ca
SHA512

f343f9ce275e5a9a654553369e5cdd4c761bfc285ac57474459fbbcb00dcb17b633f2f19aae009dcca3b32e5b6e50299d9720a9455b1e4e51be9abca97c2c37c
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z9mSJt230d:c8y93KQjy7G55riF1cMo03vmSfqs

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

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

pid	pid_target	Process	procid_target
2740	2876	WerFault.exe	30

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	2876	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2880 wrote to memory of 2876	2880	rundll32.exe	30
PID 2876 wrote to memory of 2740	2876	rundll32.exe	31
PID 2876 wrote to memory of 2740	2876	rundll32.exe	31
PID 2876 wrote to memory of 2740	2876	rundll32.exe	31
PID 2876 wrote to memory of 2740	2876	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\99bf19b6656075bdfc0382cf54d03ffdd849f46490d4529c36674d07170ab2ca.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\99bf19b6656075bdfc0382cf54d03ffdd849f46490d4529c36674d07170ab2ca.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 300
    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/2876-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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

Filesize
192KB

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

Filesize
192KB

Download