33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d

Analysis

max time kernel
51s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13-06-2024 21:30

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General

Target

33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe
Size

1.5MB
MD5

862070f88be9b53009fadec1f3c4455b
SHA1

51693d87e8ac936ded1131279372956c59644ba3
SHA256

33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d
SHA512

26d2411866046541ceff11bd8fa0ba8c1e7ac461bee65496608ae904c758708de76410570e46bb45930953372056b739e47ed442db9e325fd15754b7976fd034
SSDEEP

24576:lI8tXzEMohhJjvT+QPSBx5fCi6yX6N/9XSiOMEYAV20FZMTDH8W:lI89oMuaQPSBxpF6yX6N/dS1MEYAjZmt

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2444-0-0x0000000000400000-0x0000000000507000-memory.dmp	UPX
behavioral2/memory/2444-6-0x0000000000400000-0x0000000000507000-memory.dmp	UPX
behavioral2/memory/2444-11-0x0000000000400000-0x0000000000507000-memory.dmp	UPX

Loads dropped DLL 2 IoCs

Processes:

33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe

pid	Process
2444	33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe
2444	33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2444-0-0x0000000000400000-0x0000000000507000-memory.dmp	upx
behavioral2/memory/2444-6-0x0000000000400000-0x0000000000507000-memory.dmp	upx
behavioral2/memory/2444-11-0x0000000000400000-0x0000000000507000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2896	2444	WerFault.exe	81

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe

description	pid	Process	procid_target
PID 2444 wrote to memory of 4628	2444	33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe	85
PID 2444 wrote to memory of 4628	2444	33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe	85
PID 2444 wrote to memory of 4628	2444	33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe	85

C:\Users\Admin\AppData\Local\Temp\33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe
"C:\Users\Admin\AppData\Local\Temp\33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe
  "C:\Users\Admin\AppData\Local\Temp\33f44527100ab0e940ac9d10664cc70eda7285c4491c1b26acc4f96cccc4d96d.exe"
  2⤵
  PID:4628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 948
  2⤵
  - Program crash
  PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2444 -ip 2444
1⤵
PID:1916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsa4799.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/2444-0-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/2444-6-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/2444-11-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download