565ce462e580140727340b8fb9adc5b9c778f9741c21f85dd22c1426982bb88e

Analysis

max time kernel
150s
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
11-06-2024 17:11

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General

Target

2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe
Size

49KB
MD5

cabc3bc67ef00b44411b7c8ca136ddce
SHA1

c5b5138ff8132e2162bc8f0f6b6dd713601c1176
SHA256

565ce462e580140727340b8fb9adc5b9c778f9741c21f85dd22c1426982bb88e
SHA512

c19f63425c33ccbadc95bfd0feda1b027eceea0d25ebb04df40daa65da75ffea1b389a695e3e958e16212b511d36a35cc32453fcbc73595bd5057ed4aca17fd3
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkcu:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/1300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000900000002354f-13.dat	CryptoLocker_rule2
behavioral2/memory/1404-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1300-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1404-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/1300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000900000002354f-13.dat	CryptoLocker_set1
behavioral2/memory/1404-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1300-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1404-27-0x0000000000500000-0x000000000050B000-memory.dmp	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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1404	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 1300 wrote to memory of 1404	1300	2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe	89
PID 1300 wrote to memory of 1404	1300	2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe	89
PID 1300 wrote to memory of 1404	1300	2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_cabc3bc67ef00b44411b7c8ca136ddce_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1404

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 --field-trial-handle=3856,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4356 /prefetch:8
1⤵
PID:2232

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
49KB

MD5
1185aaa7546f2946c9369fdf3d74d965

SHA1
2ba7ec331eda45893fdc60d2340a20fb26be340d

SHA256
f4fa786d78a9a905bcc72dee22a2617cec13495d589e89af47d26e8dcb7f0d54

SHA512
a131e8a2341f6841d26ddd48f060e44821287495abb6eba879a69702bb8f5eb9b2ddf0afe8c9375a1162ef41a3e6d3d50d998161d82f956a628bcbbf5215cae0

Download Submit
memory/1300-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1300-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1300-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1300-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1300-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1404-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1404-20-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1404-26-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1404-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download