bd58cb69f5385fbf3b1169f2f47ce211050514ef59c238c5725f644a7d708eb0

Analysis

max time kernel
135s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 15:34

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General

Target

2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe
Size

43KB
MD5

4abace7b7635992a18de94df62b790a6
SHA1

51de9d224de75666aa2e90d491e9ba67e8cb6bd3
SHA256

bd58cb69f5385fbf3b1169f2f47ce211050514ef59c238c5725f644a7d708eb0
SHA512

e5bb94062026cdfbe1f697a0dc29a1ecf4f641fa64a76df8c5f73565c86004ea9a805c67e61a09958e20fe43bc7890e2948b6c9657245b5404853d704b7f103e
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGu/:bc/y2lkF0+Bjrdu/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2236	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1152	2024-03-14_4abace7b7635992a18de94df62b790a6_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
1152	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe
2236	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2236	1152	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	28
PID 1152 wrote to memory of 2236	1152	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	28
PID 1152 wrote to memory of 2236	1152	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	28
PID 1152 wrote to memory of 2236	1152	2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_4abace7b7635992a18de94df62b790a6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1152
- 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:2236

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
43KB

MD5
a9f735c8e77e2c9808dd6e2e83a99f5c

SHA1
38603466f5c3cc70dda3527fe9eb8528920c340d

SHA256
f7b7e147c5eefb4e76e514d9f180f7cb96898e1745f1502084c9ca49ca1870bc

SHA512
52880f7164b188ae3ca8afcd72d28eea8121cbd0e73fafbc276888e6cf74d9104801c393a5c2052b08152a4c2f7c5b09a59a519814b0be8cb81908741dfcb038

Download Submit
memory/1152-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1152-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1152-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2236-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download