ee2099fa0c6f35aad8d67621b1ff687807331998b83f6b5bde484cfc6592bfd8

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 08:53

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General

Target

2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe
Size

52KB
MD5

fc30e626c054e27f7aaa3d7e2543e7ec
SHA1

bc6b4fc1dd6ffee6e0288fc2423d80f48454bfb9
SHA256

ee2099fa0c6f35aad8d67621b1ff687807331998b83f6b5bde484cfc6592bfd8
SHA512

a4d6507c8c834dd8c396fde7a347aacbca558dcead49c0c3a5a5734443a71cfb4f7d3ddef1ec0133c2dbc5479a3e2ee1a51e40698e9a1fd1f563afe8b7e3a195
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4R:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013413-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013413-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2552	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_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
2868	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe
2552	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2552	2868	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	28
PID 2868 wrote to memory of 2552	2868	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	28
PID 2868 wrote to memory of 2552	2868	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	28
PID 2868 wrote to memory of 2552	2868	2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_fc30e626c054e27f7aaa3d7e2543e7ec_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2868
- 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:2552

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
52KB

MD5
00961b63c4abf87c1bbbac285345b3f7

SHA1
8014394e136a64303528789bcf0390b830d81bf7

SHA256
707f2cac4345cc3cd3d3ba62fa1acff5995c79be68f87ad79e8cb7d9d9ee64fe

SHA512
7a4b8a981b07ec3d8eb89531ebd9284e76df576dcdc2095d865ce0263647851b70204bbf9664c45a73da12de5f61890341f7bc6a6f0d88c1878ddbfab67d38b1

Download Submit
memory/2552-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2868-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2868-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2868-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download