5f3886dec88bfd664109beb73410bb24401a6994c6a021b0dff0328ad6c85ce8

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 03:13

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General

Target

5f3886dec88bfd664109beb73410bb24401a6994c6a021b0dff0328ad6c85ce8N.dll
Size

76KB
MD5

2fb02793e04600648f2eb1bea5710720
SHA1

4ba5f5071328eacef6701420b46bbe7912563d41
SHA256

5f3886dec88bfd664109beb73410bb24401a6994c6a021b0dff0328ad6c85ce8
SHA512

e321493b6123e9e92fb06139c94d55c17b5763845fdea5b17a31cbeb92a9e22617043ee6d8872711f09b7efc490f3719818a096bb85fceb7e38c6ca384399b0d
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zi5r6IC6iO7:c8y93KQjy7G55riF1cMo03bN6iG

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 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2240-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2240-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2240-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2680	2240	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	2240	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 3044 wrote to memory of 2240	3044	rundll32.exe	30
PID 2240 wrote to memory of 2680	2240	rundll32.exe	31
PID 2240 wrote to memory of 2680	2240	rundll32.exe	31
PID 2240 wrote to memory of 2680	2240	rundll32.exe	31
PID 2240 wrote to memory of 2680	2240	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f3886dec88bfd664109beb73410bb24401a6994c6a021b0dff0328ad6c85ce8N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f3886dec88bfd664109beb73410bb24401a6994c6a021b0dff0328ad6c85ce8N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2240
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2240 -s 328
    3⤵
    - Program crash
    PID:2680

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/2240-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2240-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2240-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download