c59c39ebfe5ef4878ff6a75ce3ca8d16e0b91b777bd7dc20eae2bff62d025c5e

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 04:41

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General

Target

2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe
Size

35KB
MD5

c060a320d7b911f3998f31b399ee1798
SHA1

02520a3e96a121899474b1f4349c83f4a42299cc
SHA256

c59c39ebfe5ef4878ff6a75ce3ca8d16e0b91b777bd7dc20eae2bff62d025c5e
SHA512

96b282d1c701d7484fc23d28b0a1faf708ccf36052419f5dc78f1f021cfbe5f0208851f25d7abcfd964a86ff921c9fa219b089fb8aef9f32bb12153ddc1332b8
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZRH:btB9g/WItCSsAGjX7r3BTZRH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001443b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2772	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	2024-05-01_c060a320d7b911f3998f31b399ee1798_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
2276	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe
2772	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2772	2276	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	28
PID 2276 wrote to memory of 2772	2276	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	28
PID 2276 wrote to memory of 2772	2276	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	28
PID 2276 wrote to memory of 2772	2276	2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_c060a320d7b911f3998f31b399ee1798_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2276
- 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:2772

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
35KB

MD5
995e7dd977d149c2e8cccd559655dce8

SHA1
c204464e0af5d4b7373435be92e54f17eff59bff

SHA256
e64d3f25ba2a922a10d52f6b7af479d2dcee3329ae2c26d83da3e1ff71ef163d

SHA512
7ff915292f7c5a5e6440be535cb694a437b274f75876b3820dd87c0295cb7cb3410f6567bf63bf500b4caf98deaf3a0c1a3b985166132484ae396eea6802fb98

Download Submit
memory/2276-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2276-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2276-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2772-23-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download