05a1ad12917ed0b63d82f3d22aafca9e59abab4900eeee34600c5c9b73e8be9e

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-04-2024 05:00

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General

Target

2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe
Size

44KB
MD5

c82831c07f49e0c0cc314fdd4ab9d6bd
SHA1

9455ccf0cd1ab1f42b9e0c5a84f72a3b2afb34a7
SHA256

05a1ad12917ed0b63d82f3d22aafca9e59abab4900eeee34600c5c9b73e8be9e
SHA512

5f033377872ba1aef90da2a05dd8b00bbaf0ab4aa73ef3d6fb258a2bb99aa2b5484cc48069e2d11aecced6e4a3e80270b29533347eec06c8a98572e9af71e89a
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5WPA+:btB9g/xtCSKfxLIc/uH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012267-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2696	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2352	2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe
2696	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2696	2352	2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe	28
PID 2352 wrote to memory of 2696	2352	2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe	28
PID 2352 wrote to memory of 2696	2352	2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe	28
PID 2352 wrote to memory of 2696	2352	2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_c82831c07f49e0c0cc314fdd4ab9d6bd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2696

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

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
44KB

MD5
00c7abed35edc7197539d9d3afa43e5e

SHA1
70e592e848fd30e238500a54de53aac24d55055a

SHA256
8511ad28d1f8bdc843efad1c211cc6093364f08b32b43b24f57c624f0dd24834

SHA512
8f95361e32ba1a6afac2a0952e297d780462c833415211a80aabbeb92d9bebd828ac68535ad72b95eded145044328e2ea39381ec9e0e51b2014d5354868bfd24

Download Submit
memory/2352-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2352-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2352-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2696-17-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download