e7acaaee10b41d4bfd135d5f0842f9cd29a9b0805d303b902df1d36be0e507ff

Analysis

max time kernel
150s
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
18/03/2024, 21:24

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General

Target

2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe
Size

92KB
MD5

0c6bd53dd3bffbb0294ab15bb07cbb61
SHA1

f1afbf28f9e767d00f454f1ec3fc5dfac2ed82cf
SHA256

e7acaaee10b41d4bfd135d5f0842f9cd29a9b0805d303b902df1d36be0e507ff
SHA512

26d51d365d05250c27eecf425555c2b6e66bf435e522470034a32548081eaff8db2ccd6a8a759b6e1d8f4394330f30f89a2c739aef4690053201567405aad3fb
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMg1:V6a+pOtEvwDpjtz5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023158-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023158-12.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	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 2148 wrote to memory of 2520	2148	2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe	91
PID 2148 wrote to memory of 2520	2148	2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe	91
PID 2148 wrote to memory of 2520	2148	2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_0c6bd53dd3bffbb0294ab15bb07cbb61_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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\asih.exe

Filesize
92KB

MD5
5dd0cec4c92c3156930920c326ff2fe7

SHA1
188e1c0140b8dbddf3427dbc4f2f7db099561a13

SHA256
3801ea5b321c14153230518c4361c8ed48b3e479b8899927e250d14220e2a1c6

SHA512
f561c5dfffab2801fa58fb5b4d389952a20308c03eb14bca5f851192dbc9b6315853315876fcb08c09236ef0bba32bcf37dbbcb6c0196baec93cfae915f9e636

Download Submit
memory/2148-0-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/2148-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/2148-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2520-17-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2520-18-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download