ed23d6fc40dc67a224c0d66ef25233725f8d5172c816565de6fbe76658e354a4

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
26-04-2024 23:25

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General

Target

2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe
Size

51KB
MD5

70e6c0c228136797618f2fcd0422dff0
SHA1

f457430e0c91ed0c835865767204807b3ecb432e
SHA256

ed23d6fc40dc67a224c0d66ef25233725f8d5172c816565de6fbe76658e354a4
SHA512

6931ae6f9b737934d50ed9174f65940b6ea1188d9138712a4f7e2ee253614fa005c5d8ab8172b28b2afea05f0d3cdaac6674272e92770e302894a479e0621848
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIy:aq7tdgI2MyzNORQtOflIwoHNV2XBFV71

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b44-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b44-12.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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1472	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 60 wrote to memory of 1472	60	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	86
PID 60 wrote to memory of 1472	60	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	86
PID 60 wrote to memory of 1472	60	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:60
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  PID:1472

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
51KB

MD5
0e87202ddddcd8e280bb70b3930c745d

SHA1
008d197dafaf5e3cfef3b48e886d6863e8e7b57b

SHA256
aac8f431dac02571297eff944dd274f2b0106a22d15b939dec02043bd2ea45bd

SHA512
4844663c33eebf921b1fc9b3056346f884d115cb883ded328c56c0c8d05bc4296eda4f4cac18683d14e31d3f3e73072fbcb0acfc752f57b37febc9759deb95ff

Download Submit
memory/60-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/60-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/60-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1472-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download