6e8377df1444936468dafb1e3df16eed090aae8e989761a98da0c9a0a57b10ac

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 06:31

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General

Target

2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe
Size

50KB
MD5

bf1039038d9dbabdef5bb8eeff20df0e
SHA1

b1431604f07fdf1f7bf721c940e476f37169c85c
SHA256

6e8377df1444936468dafb1e3df16eed090aae8e989761a98da0c9a0a57b10ac
SHA512

7131194d4df808fbaf1b8da5b0045a48de47a801f662fda683baebca096673954411cf83937ac1e95c5a10708a8af4d0673eb9db0969b2491756f320cad8f1b3
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIG1:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7r

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-11.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-11.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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3972	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 892 wrote to memory of 3972	892	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	91
PID 892 wrote to memory of 3972	892	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	91
PID 892 wrote to memory of 3972	892	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:892
- 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:3972

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
50KB

MD5
118da9ed344a3fb5a701e680534d6897

SHA1
c63712ee13cb9870d491c902fe12d7ed8f28e031

SHA256
73915e04e2068bd9240acc42cb594898643fd8c526e96155679252e43eb2a12a

SHA512
8ec029d4309400b5bf7798fe55279cdfea66cfe63848c5cb202133f541a0482ff7d2d240d92b38bbd4ede3a4664d6807c8669f2f916a3465133503e81a3c9e39

Download Submit
memory/892-0-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/892-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/892-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3972-25-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download