0be56c7c320207280f5c9bfe7bf13e828c7a14b68121ae2258e2df22ea37b3cc

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 13:46

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General

Target

2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe
Size

41KB
MD5

ae6f17bc76d44cf4eca4075e2314cc23
SHA1

eee05fda94b6bdd41b16d50f0728f54002c99838
SHA256

0be56c7c320207280f5c9bfe7bf13e828c7a14b68121ae2258e2df22ea37b3cc
SHA512

02144fad9eb4f24ac3c80037493808140baee9999bbe25439d09ccc9defb3b218964a0bdc07b8979ea631d2619c48ccb7cc725f0735f3c20fbcdd960b1cba9ca
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRYtsh:bc/y2lkF0+BlI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1984	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_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
2204	2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe
1984	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1984	2204	2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe	28
PID 2204 wrote to memory of 1984	2204	2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe	28
PID 2204 wrote to memory of 1984	2204	2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe	28
PID 2204 wrote to memory of 1984	2204	2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_ae6f17bc76d44cf4eca4075e2314cc23_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2204
- 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:1984

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
42KB

MD5
73f7c59337d9e7341cf1e77e8c2efecf

SHA1
e9996fadb9273ef8b4db9b8a467334c0d1b3eda5

SHA256
5a750bb00fc4474bc3bbd06a6d71dbb5ccac2282e6422213e17764bb8a7c5cf8

SHA512
eeed03bc3340524152f4b80b107e7b52f3f7fdc602b044857920f94f9af2cd264f8573f422eb88839af948cf86e4d14a7c653b3f20737c5870bdf9bcb24bb024

Download Submit
memory/1984-17-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2204-0-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2204-8-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download