7ec668b75adf1ace751a3923e71677d1ca4b413cea8150148e1544c0dd410238

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 03:37

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General

Target

2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe
Size

64KB
MD5

33ab1c2f1dda4877568da2a6b5be7ea5
SHA1

5a9e0087852040fa66b4ff96a904cbd4e4ee8bae
SHA256

7ec668b75adf1ace751a3923e71677d1ca4b413cea8150148e1544c0dd410238
SHA512

7aa4bee43ebaff1392325445039a0b100c5d694efa998aae762085b3f32279b4f4c83362f30a18a46fc4b91f27d25d1aee1c49fce574c5d4f2b06206f6dc3185
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293Civ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2216	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_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
1712	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe
2216	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2216	1712	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	28
PID 1712 wrote to memory of 2216	1712	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	28
PID 1712 wrote to memory of 2216	1712	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	28
PID 1712 wrote to memory of 2216	1712	2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_33ab1c2f1dda4877568da2a6b5be7ea5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2216

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\hurok.exe

Filesize
64KB

MD5
dd3f366f0a1e51c8831f5319adc6e00f

SHA1
9b78485b40a3286a2231fd6909004c4d3c6e36aa

SHA256
02781b8d3eadbcee0b2e1c606c95ae3fb55e486827b423db236c21a685dc9a56

SHA512
2697637293cf1ad0e359a27e65861cb1155fef3ea0e349663290975b3445fd020a9e9a9297b9824bc69f755a94e2120c75c3222ee5db3fc1f6a0c08020839e64

Download Submit
memory/1712-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1712-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download