4928e78ab03cf9f4d2fcdafd76486b7a65061485163f2f1734058ff71f01b937

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 18:36

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General

Target

2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe
Size

36KB
MD5

dd00042d6c107ffaca1266f1e5339315
SHA1

d39e805d86ae373cbd0fffa8296ebc0a28aa9ed9
SHA256

4928e78ab03cf9f4d2fcdafd76486b7a65061485163f2f1734058ff71f01b937
SHA512

24f9d8d42180ca52884f9637ec3f2c592150e0cee6b565bb91623ae757c9681acf857d8107d1ebb1702f641eb77873eae4b16dc284119a95393ad3c021271952
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvUo:btB9g/WItCSsAGjX7r3BTZvUo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014fe1-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2684	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2820	2024-05-12_dd00042d6c107ffaca1266f1e5339315_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
2820	2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe
2684	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2684	2820	2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe	28
PID 2820 wrote to memory of 2684	2820	2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe	28
PID 2820 wrote to memory of 2684	2820	2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe	28
PID 2820 wrote to memory of 2684	2820	2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_dd00042d6c107ffaca1266f1e5339315_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2820
- 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:2684

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
36KB

MD5
963d85382f595da2593e08cf19dd6073

SHA1
c4711933c0f6fc22ea86ca571891e07611159573

SHA256
d11e756e6c2fe389dd6117430e8acbf6b2595768164cabd36a75a194ff4ad466

SHA512
4a5437d13705462911970f6854a4fbe6be340c9f5142dd4be24079e6504639d49d5d82db34381f416762a60f31b65958b5793971da803a44642925183d3d9701

Download Submit
memory/2684-16-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2820-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2820-8-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2820-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download