025c427151c3eabfe6967ae36684ede96ddf7af4ead7ced3413074f7a2b39b25

Analysis

max time kernel
135s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 05:51

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General

Target

2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe
Size

94KB
MD5

ad76f81bd04c1c52c8a526cc8392b24e
SHA1

7ad98f3d611a0f2e1a8518a81a6a1e4ffc69aa15
SHA256

025c427151c3eabfe6967ae36684ede96ddf7af4ead7ced3413074f7a2b39b25
SHA512

c5af1ae6f174fccdf837d4aa251eecee04162e627f2111d1192fd9bb6639b01d79a642569293791b2b2cabcc92892a74368805e1ef32f25f69c45c07ba25a540
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCM:26a+2OtEvwDpjtzf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.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	2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4972	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 3348 wrote to memory of 4972	3348	2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe	91
PID 3348 wrote to memory of 4972	3348	2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe	91
PID 3348 wrote to memory of 4972	3348	2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_ad76f81bd04c1c52c8a526cc8392b24e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4972

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
94KB

MD5
4562a7e989159ccb3a0d895c9bab801e

SHA1
6de60bebb9999308026de8bb991464bec024990d

SHA256
0d1467e43d889fd9762537ae92a3ff2d32b78f1f9ef9b4519f5fffa1ef48ee3e

SHA512
b91ab7f4032a8486a4b99696a5a21ccff49ba94e54b8711ccfe677f9055c3779c5a877235268fb841edd68b9f7e72fa00aa8fd73b88a0138cc2e3c4f69aa7a93

Download Submit
memory/3348-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3348-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3348-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4972-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4972-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download