aca75726d59fc216b9124cf7a43edb2390ae296bd51f0a80151a88b77d5182be

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 14:41

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General

Target

2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe
Size

44KB
MD5

d7b039d80334aa3a2263163d23d8485d
SHA1

eb93fe3ce00843b19efba334feab19e2c55e7dc5
SHA256

aca75726d59fc216b9124cf7a43edb2390ae296bd51f0a80151a88b77d5182be
SHA512

6050e8cbb20f7bdd08e02414eecde14984abe25d4aadb4cf88bdf8221b08686dae85db469ccd8df4a35dbe8633beda02a235ea281ea5f31301d4d93407eb14c4
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kxz:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000016813-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000016813-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2496	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2908	2024-05-05_d7b039d80334aa3a2263163d23d8485d_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
2908	2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe
2496	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2496	2908	2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe	28
PID 2908 wrote to memory of 2496	2908	2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe	28
PID 2908 wrote to memory of 2496	2908	2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe	28
PID 2908 wrote to memory of 2496	2908	2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_d7b039d80334aa3a2263163d23d8485d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2908
- 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:2496

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
44KB

MD5
dd7afb242505afb7c628bb73e7fde24c

SHA1
e098a3fc65a1d30c04d4ba727f5e2ee9b0a604aa

SHA256
1647432c59b70ff8c9aef04b13e4bcbf57958a42cee56cd7f2a8080d2cc3d25b

SHA512
29b537dcb5a20b04f5653a2c624cb188ad286ba9574294c7eab93110488930aa338d769edc09df418c24110f916ecc2884383275028666e9014f321f327fe0b6

Download Submit
memory/2496-23-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2908-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2908-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2908-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download