f71538d60b13832f06d4718721a2dfd119855fdc4a774c8e3e37af9aeb03633f

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
12/02/2024, 01:38

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General

Target

2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe
Size

33KB
MD5

6d5eb3f3b04d8da550d5ce27b8ab8534
SHA1

564f8c5ff3b21b5ce69bb0a69dd6e0b8a0797e58
SHA256

f71538d60b13832f06d4718721a2dfd119855fdc4a774c8e3e37af9aeb03633f
SHA512

28a1993b8359432c6bf1589ed67598e1f56038642b8272a45029252a77726a72206feb2ca838246e7384cf9605d05cb1797b9ac23173ac43059143941702038e
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3qvzb:b7o/2n1TCraU6GD1a4Xt9bRU6vf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2196	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2248	2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_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
2248	2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe
2196	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2196	2248	2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe	28
PID 2248 wrote to memory of 2196	2248	2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe	28
PID 2248 wrote to memory of 2196	2248	2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe	28
PID 2248 wrote to memory of 2196	2248	2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_6d5eb3f3b04d8da550d5ce27b8ab8534_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2248
- 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:2196

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
33KB

MD5
29621635c502cf2e8b8d8bbb86997bde

SHA1
83692da4d7cb83c5496c3795ecc99811e70090b4

SHA256
a4d601094ef356d8af9de4bad6773c033190bd3bb980b57a5815d14caeca0e8b

SHA512
c1a33a80a2747d09e27294d3e1e9dc8e1e3d8b181823b50672f29b2ca9042c5c7a58d24369e84f5b2f94ef462d53952f6cbbc9597ff6ab7fed69249be1b54bed

Download Submit
memory/2196-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2248-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2248-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2248-6-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download