7e648da49713aec15d0c338ba9f8a53d1694708a72e7c16a5b68000504529c7d

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-04-2024 17:59

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General

Target

2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe
Size

29KB
MD5

d704053a426f41f6e31b62126f4c7d74
SHA1

a6c748b5e0d1ea59e509126e507b93697b873774
SHA256

7e648da49713aec15d0c338ba9f8a53d1694708a72e7c16a5b68000504529c7d
SHA512

5cce824340f9b4778b7b526303d7d565c68a4f53cc3f8223dcbbb7f4f3c4498a9a52ab71abf0208620ac2cbeb4b8563281c53ffb96fa88e37524a94d1c5d7b7f
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfb:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014466-22.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014466-22.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
3048	2024-04-24_d704053a426f41f6e31b62126f4c7d74_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
3048	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe
2548	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2548	3048	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	28
PID 3048 wrote to memory of 2548	3048	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	28
PID 3048 wrote to memory of 2548	3048	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	28
PID 3048 wrote to memory of 2548	3048	2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_d704053a426f41f6e31b62126f4c7d74_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3048
- 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:2548

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
29KB

MD5
09a578ac45958f372bee010e5e96957e

SHA1
ab6e0b610a26845cf0a18eced5117c540afbf802

SHA256
7e1b331f97fb75efac7ad17ec5c6de3cf2bae0e7e0b56d83dc966b3e5e4f00b4

SHA512
7992d161cb9f51abdaf7556d38e9237d58544b96e7f4b2aae6b43204755d70deb498a3d90cbbf99d7dfd9579950aa3b902bd8b711af4097479bd93b1dddf6510

Download Submit
memory/2548-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3048-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3048-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/3048-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download