0e7ca921e13c5c3895f122d811be5528d8598d5cd144e18c557ad3c648dc85fc

Analysis

max time kernel
91s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2024, 04:40

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General

Target

2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe
Size

30KB
MD5

abe5a170176874c5ab7dfcc204d87a36
SHA1

594672d8e43f0626c6a02e7d5045b81f72dd83a0
SHA256

0e7ca921e13c5c3895f122d811be5528d8598d5cd144e18c557ad3c648dc85fc
SHA512

619141a9b5eacea9faf09c5dd29c5cec2163869b57fc93921f7d4a87dc2784760eb51c86406703f6e557ad9765b66aac664dece03515df0a39b692e212c0b71e
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNf2K:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4320	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 1668 wrote to memory of 4320	1668	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	82
PID 1668 wrote to memory of 4320	1668	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	82
PID 1668 wrote to memory of 4320	1668	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4320

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
30KB

MD5
907bfbe59f244a9363486aa78d6bca43

SHA1
2e4852cf35c55d570141e7ef64a00e5b76d0ac1b

SHA256
5b7fb5c65889746dd86a6a2418535dd2c5f7cb2d2acabc92357a62eff2c01ddb

SHA512
7b0cd4b94eeee2e1590bfec9e4bbe73156a3400d7741558a7ef37355d11ab6e1c4d8e0c2b53c7299ef7ee7a15ed34cc49ee30b61d05fb3f9322cea73b50c9abe

Download Submit
memory/1668-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1668-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1668-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1668-8-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/4320-25-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download