0e220614ef7bd4a0bfe65eff0628da94baa421067bd847b355f6773cde4d4429

Analysis

max time kernel
149s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2024 04:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe
Size

90KB
MD5

14da3899acc2734e9ef400a8f29c89d9
SHA1

290be160939d0b6d0b54bdcca2db8ac8fd3f7248
SHA256

0e220614ef7bd4a0bfe65eff0628da94baa421067bd847b355f6773cde4d4429
SHA512

eeb32d526fd95128501271c55e357251e6001f91f262ce9957c89cd6ed4a897e2b401d25c24227aac7feafb2957492f6ebb71d1fd13c2adc814f8798946d0dc5
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgcf6:V6a+pOtEvwDpjtzT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-12.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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation	2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5076	asih.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 2056 wrote to memory of 5076	2056	2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe	88
PID 2056 wrote to memory of 5076	2056	2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe	88
PID 2056 wrote to memory of 5076	2056	2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_14da3899acc2734e9ef400a8f29c89d9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2056
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:5076

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
91KB

MD5
0cf43e221ac505c3bf2e8361704f6ed9

SHA1
623151eb319ef7933f3989f4aa12f5bde23622a8

SHA256
ff20aa984ffd01ed2053616609bcbb3c73396e7db07de8a5fb878d05661ae284

SHA512
a500b6527f2ff9fcbafcc03cc25e01a1e663055337bbb35452389e0bc028943dd58f729467473771c4b4e3b74ca360e9e605545bc58394589f50a6fdf9c1b217

Download Submit
memory/2056-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2056-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2056-2-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/5076-17-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/5076-20-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download