72de26437fb868561789fa3c22a40225d06d8eb7072a02f3068fefdc9298dbc9

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29/06/2024, 23:22

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General

Target

2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe
Size

39KB
MD5

50aed51ebfb1be915479048d08ab3cb7
SHA1

766ba5638a08ae0af25b57e3853fc59fc437e5ad
SHA256

72de26437fb868561789fa3c22a40225d06d8eb7072a02f3068fefdc9298dbc9
SHA512

c0634e143bebf33d9c995a0fd07d728b37acc2cdbb80636a953ac2d55df2414779bcc6000a2d5b73a7716cda0e7f37b5df4df9a984d336598dcdaff90c88029a
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCw02:X6QFElP6n+gJQMOtEvwDpjBmzDU52

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-15.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5052	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 1628 wrote to memory of 5052	1628	2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe	81
PID 1628 wrote to memory of 5052	1628	2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe	81
PID 1628 wrote to memory of 5052	1628	2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-29_50aed51ebfb1be915479048d08ab3cb7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:5052

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
40KB

MD5
e9c8b84d0dc9f2e218845ee96e8313ea

SHA1
7a2629dbc68616af4bea4ee3374c66bc78d198ee

SHA256
6d7cb16b130f267848411c0ebd0e578b3591983a1989736fba04be7af743b4fb

SHA512
a3a932bbc09e14e87c95cbf58501f57a48600e325d6a6cadc9382c6e40359a1c38da9a499f58e9331cc026d3c611535ff4b3fca9d89be3c01e2b36ec52263eb8

Download Submit
memory/1628-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1628-8-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/1628-1-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/5052-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/5052-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download