c044ee772a8891ab49ae85de9290413fa1afd931b9c17a7a8b649cdcbf2972a5

Analysis

max time kernel
134s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2024 04:30

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General

Target

2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe
Size

55KB
MD5

e23175cd7a084b1414cf3bad963df46d
SHA1

ae4f012c425d5712bc8a472111f6f86ef3a62e7a
SHA256

c044ee772a8891ab49ae85de9290413fa1afd931b9c17a7a8b649cdcbf2972a5
SHA512

4d21fc76d6441b7909373b1d9f8811f41417802fb6397dc3996c034f734ec1906ad2959a972b9dfa527806f5c22c73a24868900a0e161265d074d102ff78f67e
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6E0:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

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 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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	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 2684 wrote to memory of 2576	2684	2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe	85
PID 2684 wrote to memory of 2576	2684	2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe	85
PID 2684 wrote to memory of 2576	2684	2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_e23175cd7a084b1414cf3bad963df46d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2684
- 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:2576

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
55KB

MD5
24218df6dc260ad18bb2f3e675c9f9a1

SHA1
e41ececdb8717cb4397a9a846d1d618d65ed962f

SHA256
55e0934e0b4ef615b26e51cb1032ae1caeb8469477155d404ac69f6abf85551c

SHA512
6139bb890c7aa48b67cc6d85dcb015a7e9ad112e967d595ed6a178aeaae7f3d8035fc6521a7e4ae339d5775ff396288e8ac7e00e208915f54d6bd1d7d0e3f933

Download Submit
memory/2684-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2684-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2684-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download