f8e44e4c9c034d14fbaed65a902bb0c60bc954fa0323c412646d0a8c81f1f840

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 23:39

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General

Target

1a37e8115a0dacc9018ca4b4ffc5c8a4.dll
Size

5KB
MD5

1a37e8115a0dacc9018ca4b4ffc5c8a4
SHA1

ca5fc942c6edceecfe02119bc0ab2cec0b1d2f58
SHA256

f8e44e4c9c034d14fbaed65a902bb0c60bc954fa0323c412646d0a8c81f1f840
SHA512

7dc7d5c23bbd6fa9a15ee86c595cd12f47103932bab68009b75dc11fded1393de5f7cdc6943bb5b079cc7e686b747e46afe571eba30657fee8899f10a0547706
SSDEEP

96:TcyyZEk35zFvJk09U736qcXzAfpkCI292vKB2CI+E9fyb:jGHFv+MnKkCWvKB2ffyb

Score

7^/10

persistence upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2868-0-0x0000000010000000-0x0000000010009000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\SysWOW64\\rundll32.exe"	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2376	2868	WerFault.exe	14

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2420 wrote to memory of 2868	2420	rundll32.exe	14
PID 2868 wrote to memory of 2376	2868	rundll32.exe	29
PID 2868 wrote to memory of 2376	2868	rundll32.exe	29
PID 2868 wrote to memory of 2376	2868	rundll32.exe	29
PID 2868 wrote to memory of 2376	2868	rundll32.exe	29

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a37e8115a0dacc9018ca4b4ffc5c8a4.dll,#1
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 232
  2⤵
  - Program crash
  PID:2376

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a37e8115a0dacc9018ca4b4ffc5c8a4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2868-0-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads