41a62e941af4fcffcbc54374564e19fa7af55c8cd47eb178b1cf0a0903934e6b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 00:31

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General

Target

2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe
Size

38KB
MD5

7e6c5ed9104a5ab083c35fe2a20817a3
SHA1

b24a4a47123ef7da1f73e84ad057691b05932ac2
SHA256

41a62e941af4fcffcbc54374564e19fa7af55c8cd47eb178b1cf0a0903934e6b
SHA512

ccc32c5e65fd46ae097e2db0b16c4bf692892bd1ddb5ead746c4c11c35c4daf3ef0cd0b68ab4bd1c7309c8a1e1446518f7012e7d846bd6e254d5b31c5d5d3689
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mhI:bc/y2lLRU6zA6qa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001269e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2688	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_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
2868	2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe
2688	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2688	2868	2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe	28
PID 2868 wrote to memory of 2688	2868	2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe	28
PID 2868 wrote to memory of 2688	2868	2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe	28
PID 2868 wrote to memory of 2688	2868	2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_7e6c5ed9104a5ab083c35fe2a20817a3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2688

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\rewok.exe

Filesize
38KB

MD5
7a20591a2749e4fdb0315eb26e3f003e

SHA1
a93d57333b326f00df46325b39b0c139af241a2b

SHA256
7160e020184116915e041ff9e05076c959ac4297b6f57b0bbe4a5ccba1324de7

SHA512
ec35943db7696c0574def04cf9a8a593814bc9d921bdb3e73da8ad840e99daa7c2c8260a38b3adf5ebad539fc27cf5020a557f1490a9a39b769fbb9f7697230d

Download Submit
memory/2688-23-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2868-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2868-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2868-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download