ad5f88e5b2e384a93075e47034be4b8572535283640eb605d17c2ca17158f62f

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 05:35

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General

Target

2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe
Size

44KB
MD5

7969a0bcacb63fab789dd5f99fc039c0
SHA1

4f18164f33c7eb006a271a50ea694b3109563c8b
SHA256

ad5f88e5b2e384a93075e47034be4b8572535283640eb605d17c2ca17158f62f
SHA512

6816cd9f176ffa943a05f40f0267e84eacb9e7b0c5b61285d79b280aa9cd3c7b2c2591d750773948fdc58d22699583cab8dc771959e8279ea62a50ffce04a742
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqe:bc/y2lkF0+Beqe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000141a2-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3016	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2396	2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_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
2396	2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe
3016	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 3016	2396	2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe	28
PID 2396 wrote to memory of 3016	2396	2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe	28
PID 2396 wrote to memory of 3016	2396	2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe	28
PID 2396 wrote to memory of 3016	2396	2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_7969a0bcacb63fab789dd5f99fc039c0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2396
- 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:3016

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
44KB

MD5
427c96643f0e847930f8a396c419345a

SHA1
b6dc7e8db1d9df6984f12c0a54fedff6e56515e8

SHA256
4d353db72d861bb558e781381a385d2d56214a979c3f794da76e0ccf17ab1da2

SHA512
1360fc4c20f55c45910c1bc9af49094bc410bf932169667c2a423429ef2b2c5006864d40837b4e7e24c7dd7973086a4d51ed61eb9df8aec70df14797b4cc03da

Download Submit
memory/2396-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2396-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2396-7-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3016-23-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download