ec12f5b6a9b92dc6a284609b14e7d194afc22a2b8f363db01506cfb975fbcdeb

Analysis

max time kernel
142s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 12:36

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General

Target

2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe
Size

63KB
MD5

561cdbdfde0a977dd7ccb2c184615b9e
SHA1

7a5e90e9440c08acc6c9f9aedf0448167e181582
SHA256

ec12f5b6a9b92dc6a284609b14e7d194afc22a2b8f363db01506cfb975fbcdeb
SHA512

6039ce6f35ef7ceac1275fa5a88a2b53a17fff9ff09a88c19bff08ccc1c447cbd5c7dcf677de0ee49b7bcfc0288791a1a768a07d1b089a796091701f952d8876
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299dh:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7T

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2000	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_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
1968	2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe
2000	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2000	1968	2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe	28
PID 1968 wrote to memory of 2000	1968	2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe	28
PID 1968 wrote to memory of 2000	1968	2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe	28
PID 1968 wrote to memory of 2000	1968	2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_561cdbdfde0a977dd7ccb2c184615b9e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1968
- 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:2000

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
63KB

MD5
d6d6cdd3eb574011171b30752010ef83

SHA1
6ca78852fea6aefbaf9cc2680bdb836c74bb9a87

SHA256
8ea082574c0d552fa45dd6a7bf96c8b5238b4f0f0c81952d58d548465949241b

SHA512
f45e7b4d4b986ef0edee1fd67435f60c9e6b5601fc7f8f643ecd76fc950cd4998531cfdf34c37357f6a3b499fa382c1aee0d24a64079c909d747e0bfcb56d9f2

Download Submit
memory/1968-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1968-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2000-16-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download