1f63490cca9095f7f59ae4f3b4393597b59f044019b8edb2f75bf74d15f201f2

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
29/06/2024, 23:22

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General

Target

2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe
Size

50KB
MD5

849feb72c4d87ed88a97044940d607a2
SHA1

c17c5d261d123b3dc4f05eb34f5157f74f9bb1c9
SHA256

1f63490cca9095f7f59ae4f3b4393597b59f044019b8edb2f75bf74d15f201f2
SHA512

e40d50ec3ba063a80e64ffe14fe76e3959af4a7ca16e86e2daf748f57f91622a95d00aa43d0eed510a5932b23fa57c92b56d8c88a4e850803afea2a7e9b7e6c3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556BlvsTV:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvIV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235e5-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235e5-12.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-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3792	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 3332 wrote to memory of 3792	3332	2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe	90
PID 3332 wrote to memory of 3792	3332	2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe	90
PID 3332 wrote to memory of 3792	3332	2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-29_849feb72c4d87ed88a97044940d607a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3332
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3792

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 --field-trial-handle=4084,i,7977653611488681184,6839495125838449898,262144 --variations-seed-version --mojo-platform-channel-handle=3884 /prefetch:8
1⤵
PID:2800

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
50KB

MD5
64d13f4ab125dd56f128a79d04c29636

SHA1
7c7c51ea7ac36d06dc5dcca037ae915caa92b878

SHA256
fee52780e00e832a55b408d9afb3de7ec1821803687f499db112741fdf0acbe5

SHA512
af6bca0e80f6797cda4d2a22efd3b3d8bbb2e7aae1eeeae8ebfaff2857689320b7b3023fd4dae09d3f5735aa7ff9c8ccbd89f01ef4bf883c4271e1de3ce35487

Download Submit
memory/3332-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3332-1-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3332-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3792-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3792-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download