7d86e2646783a7e3a418bd80f98b9990586250dcf15910009e6f8b51020b9c78

Analysis

max time kernel
149s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 15:30

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General

Target

2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe
Size

99KB
MD5

89c8b76b82792785592d25866adbe6ba
SHA1

2cc80809227caecda33dd61eeb75c1c51482c765
SHA256

7d86e2646783a7e3a418bd80f98b9990586250dcf15910009e6f8b51020b9c78
SHA512

eb54ce9cce18e362ce64a13c0a75a9016f568cd803d93c017b0bdf12b2e8cf13c2ff25d17aa5f4b6dfc491f18bfd16bd1b004ddedf0f8d53b3838b0704d781ff
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWw6fn:26a+2OtEvwDpjtz1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023200-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023200-12.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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3944	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 3000 wrote to memory of 3944	3000	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	84
PID 3000 wrote to memory of 3944	3000	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	84
PID 3000 wrote to memory of 3944	3000	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3944

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
99KB

MD5
9c039e92d876fd7cf92efc671beafc43

SHA1
0a83c0ff13deeff310ac7c40361871817b4750c9

SHA256
f834e5c7e46b2cdf69178e0b29b4d6cc8f8b12e021044caad2b1ca2e9613bda1

SHA512
f2dbea6f8d443cd2c40abfc4e6ae12f469ffe8fcff54e06eafe5075689123fd05d75929d506d67448928cedd307e513c7df80d9c90051492837c0bfdf97ee32a

Download Submit
memory/3000-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3000-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3000-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3944-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3944-18-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download