30b1214b0e8a8f348a2c3703acc2666366424c55937d49cf1d826fe1f4d7d2c9

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07-03-2024 23:37

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General

Target

2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe
Size

43KB
MD5

afb646a15546876efaf8aeee1f89952c
SHA1

3b8b70f84dac037a4f56d73e667e652f4683c79d
SHA256

30b1214b0e8a8f348a2c3703acc2666366424c55937d49cf1d826fe1f4d7d2c9
SHA512

944e59e98754c59a581d2f47fe63cea6876cb22f9a84a508ccb72e5c86b0204b40f66e35de6e54a1a6ebaf3e73361ab3f2e3250ac38889b65d297c9d53b98ef3
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kx3:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4404	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 220 wrote to memory of 4404	220	2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe	89
PID 220 wrote to memory of 4404	220	2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe	89
PID 220 wrote to memory of 4404	220	2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_afb646a15546876efaf8aeee1f89952c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220
- 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:4404

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
43KB

MD5
684fcd548a0b6dc838e22468e615c1d0

SHA1
9723035c9af26f0bcb89b62f9d8009e1f44e3568

SHA256
df7dd321afa0500e4cc953ed15201c6d77ae2aa8c335296829b30969d79cc990

SHA512
23ccbf9b3b68301ea7b772a3c933a205dbac8a5c25180d1f73f881a9d02c8c6027dea6c36627f6acd47143e3d5f33ea2ffcc90ce11a68719fdc649d2321c2f43

Download Submit
memory/220-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/220-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/220-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4404-20-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download