4edd62dd57732ecf60558de3f55307e6dcccc333cd744f73c81cc18b15877e8c

Analysis

max time kernel
144s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 12:37

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General

Target

2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe
Size

74KB
MD5

cd614f17b6835d658368f21fce63d236
SHA1

d121348972dd73eb994d072a993bd7da0f1894d4
SHA256

4edd62dd57732ecf60558de3f55307e6dcccc333cd744f73c81cc18b15877e8c
SHA512

4882803f091ebec91936f801109d46445fee7903aa20a71e82a78f7f7b9d76d2373add70632dbc57eaede0c8d24d3af6d9df43b71644cd85ed69f51acd7b17d8
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsy:X6a+SOtEvwDpjBZYvQd2B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023252-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023252-12.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	2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	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 3404 wrote to memory of 2916	3404	2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe	91
PID 3404 wrote to memory of 2916	3404	2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe	91
PID 3404 wrote to memory of 2916	3404	2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_cd614f17b6835d658368f21fce63d236_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2916

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=4068 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:2180

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
74KB

MD5
d0ce45b467e22edccce7f4a09f5d21c6

SHA1
2325860a40d014dcc95e6f0116686f91229a03e4

SHA256
84809d941a769625c8f4b2a04bbef8786ee1bfecaf36524fc8cd22e629fe05b9

SHA512
2b746229213b8c8b181bd88becab116948e9cf34da9a81738bb5f19edbaaa23796c1b5e8f5a4a4871a2d3224f16645466711d07d9d446a6c38c5a62aaa83bfc8

Download Submit
memory/2916-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2916-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3404-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3404-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3404-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download