70a48c44636e1277ea62293f31a2ee6e6f79d8cfe0bce9f080186a359e1ccfdc

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 08:23

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General

Target

2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe
Size

40KB
MD5

0ca7f1028db436a98c4836822123539d
SHA1

d3ca9f09855a2c82549efa6d7a1ed9111b520b13
SHA256

70a48c44636e1277ea62293f31a2ee6e6f79d8cfe0bce9f080186a359e1ccfdc
SHA512

dd4571ca160c46f703630af11272cc85ada549121a68bc7e415c7ae389d973611b6b5c9162cf732f132d8e11a3eb75cb296859af9a70f3d14272d7feb22a714b
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMvcWR:bc/y2lkF0+B2b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2720	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-02-19_0ca7f1028db436a98c4836822123539d_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
2300	2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe
2720	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2720	2300	2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe	28
PID 2300 wrote to memory of 2720	2300	2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe	28
PID 2300 wrote to memory of 2720	2300	2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe	28
PID 2300 wrote to memory of 2720	2300	2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_0ca7f1028db436a98c4836822123539d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2300
- 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:2720

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
40KB

MD5
f96e6a68ce4eae7eb395c3ba0faf66fa

SHA1
e40c7c26ce768a77b552775bf05a58bc40c040fc

SHA256
701bd3ac290ca90e996dd6bc71c725eafed70e0e1fc287a644a18e2a928dd657

SHA512
b70b72126c53503ab25a0202b77f9f8150be7dacb9344160404095b3d74c348a1071e1b5d32ccde0b64449aa417b579b70058723e75f06acb23a640b2601cf46

Download Submit
memory/2300-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2300-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2720-23-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download