7b7c47b87e3f04e9b8c14fe8020fd4422f8267db1664cdd30d6633da82256944

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 03:52

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General

Target

2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe
Size

53KB
MD5

f5d0e7da805aa594ff20cae58aa93f5f
SHA1

03d626a0b1a434713bbbe207becd18791bf60213
SHA256

7b7c47b87e3f04e9b8c14fe8020fd4422f8267db1664cdd30d6633da82256944
SHA512

1ea7073a4eb74224a6dbe890e08e3e5091d3bc763e20279cc894c7be2f1d574bc358093ad425fa12d1484cf3128a800f4f806bc8aba48e0b815b605231fbc76f
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI0v:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3356	hurok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 3356	2064	2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe	82
PID 2064 wrote to memory of 3356	2064	2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe	82
PID 2064 wrote to memory of 3356	2064	2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_f5d0e7da805aa594ff20cae58aa93f5f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  PID:3356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
54KB

MD5
767fe30637b1d2e10d4b643b8021cebe

SHA1
2362513e82dffba79c64d50e44acd70f1cfd1220

SHA256
ec043431e0a901a9bfd840acfe6e53f00e9db8ba457e5cf7a9c7e6eb2506ebed

SHA512
aec013f1a85ec7ce7fb2005ab6d2e83581bc2d2ef08801ae7a54f0987c78fcde71551ed40021322a4e879d77d84539f1d4afce8f0f63e4c375ef8131d3c3ea34

Download Submit
memory/2064-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2064-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2064-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3356-25-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download