0cafa70a39e7ed7d07bfc58b964aade9d148a56bf4fee92ab220eedcdbc6629d

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
01-05-2024 04:47

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General

Target

2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe
Size

37KB
MD5

b12a57a4a4ede49163afdcb6018111ce
SHA1

1be18aeaa81d7f0379e4626d728b67274b203f10
SHA256

0cafa70a39e7ed7d07bfc58b964aade9d148a56bf4fee92ab220eedcdbc6629d
SHA512

ef29f5c628af55741ab9d580dfeeb8e1194d088e29127b7adbab9e3ff87ccbdae5571bea087fb2bcd9cf296805b1d00479e2be57686004ac274e81d1a3a94444
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mM:bc/y2lLRU6zA6qM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014284-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2356	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2944	2024-05-01_b12a57a4a4ede49163afdcb6018111ce_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
2944	2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe
2356	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2356	2944	2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe	28
PID 2944 wrote to memory of 2356	2944	2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe	28
PID 2944 wrote to memory of 2356	2944	2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe	28
PID 2944 wrote to memory of 2356	2944	2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_b12a57a4a4ede49163afdcb6018111ce_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2944
- 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:2356

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
37KB

MD5
1c7f6baea680ef4324952de641eba3f7

SHA1
c0cdc699011ac79790edc98d35c28d21962a42fa

SHA256
fe7b306a5b18ba515f54d4651b184a9283bb54b6b11360bd02db92ff38543da9

SHA512
23ec7dae62d7fce7b0fc2e55cbff97a520baab51814cd932034888322393e942ef8988618387b53e9a9e454cc72eb2686e7bae6371fa5ca0007f2d0069dab705

Download Submit
memory/2356-23-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2944-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2944-8-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2944-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download