64bb4d1cd0d35242b511a94fa7868a2b14af041e394085cc82f90ab6d35c4ca4

Analysis

max time kernel
146s
max time network
154s
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 20:26

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General

Target

2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe
Size

48KB
MD5

27e0248b0ac863d4b7697beb3bc3a363
SHA1

eac308c9b3323d2086f9fd5aeee2216aba804b64
SHA256

64bb4d1cd0d35242b511a94fa7868a2b14af041e394085cc82f90ab6d35c4ca4
SHA512

a959e997f07699cea535cda17619ba5f9f0478749963d6a4e85aa32a6f49153cda91028b7aa1a971fcb71c3e6fd9684c82162b05576eadbd3c3a504d67983109
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X30E3aM1E:V6QFElP6n+gMQMOtEvwDpjyaHaXmuE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002326e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002326e-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5520	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 3504 wrote to memory of 5520	3504	2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe	99
PID 3504 wrote to memory of 5520	3504	2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe	99
PID 3504 wrote to memory of 5520	3504	2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe	99

C:\Users\Admin\AppData\Local\Temp\2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_27e0248b0ac863d4b7697beb3bc3a363_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:5520

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:2376

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
48KB

MD5
eb5cb9df96332a05c686187e54656eb6

SHA1
e3c40502ab42691eac3617c20935d5eea7f97d76

SHA256
d3b45fc91abdc322c72843cf6157c93318a0006efbc4cc8dc74fae04afba29d6

SHA512
da10fed39d5c70352243b4323fdd60b61befbb62aed8645165c70acfad1a19f532daab592f8c4776125c4ee11c3ebf3a4f86e125ae9a2f495812ab4a09289ef3

Download Submit
memory/3504-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3504-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3504-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/5520-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/5520-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download