8a90162166464ee7e9a8d03f7568a69a4615b0912926de8acbd5026442e568e5

Analysis

max time kernel
184s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 23:14

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General

Target

2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe
Size

44KB
MD5

b0be6d60a7cf8afb49b48d93fa967443
SHA1

b8bb094a4b9f5b18eb99e31efb5e71e118ee8663
SHA256

8a90162166464ee7e9a8d03f7568a69a4615b0912926de8acbd5026442e568e5
SHA512

ad59da524a131f7d70a78a0dd384a60253d0197b670e010e630d466a757ae4019f84eeb92f068a7b72111c83109eb5d13f64d3e066cde54a432be111bd9926db
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556d:X6QFElP6n+gJQMOtEvwDpjB0GIWM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023226-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023226-12.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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1812	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 4764 wrote to memory of 1812	4764	2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe	87
PID 4764 wrote to memory of 1812	4764	2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe	87
PID 4764 wrote to memory of 1812	4764	2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_b0be6d60a7cf8afb49b48d93fa967443_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1812

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
44KB

MD5
e2868d68b9c2fadece16d9d93b1188ba

SHA1
baf6f31c084789a3e67b3f97c9d8783554ca46e6

SHA256
3ad0b63a43eae446ca0597636a244f419022b911b46b8f54d7ed28c45b6aa975

SHA512
894d87abd07675e900696fe18c64a8500abdfffa08824b923bfdec0462c762fc0b432eb6089288e9474efb869600a7efab0c79b27087dc61e5910ae8c5d8f900

Download Submit
memory/1812-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1812-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4764-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4764-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4764-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download