d053d0dd39610ab22c0eef0fcdc1a64f39d67f4a6f422450e97609e3f8ac6222

Analysis

max time kernel
142s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/05/2024, 21:22

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General

Target

2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe
Size

46KB
MD5

8725e4a8dc685bb36af63590650c3c71
SHA1

945a346ac1b0481b8ab9380e1bb9fc938f883d17
SHA256

d053d0dd39610ab22c0eef0fcdc1a64f39d67f4a6f422450e97609e3f8ac6222
SHA512

bbe598bfc197af59441770a2154527791c9bf340da07bcef837206efe5d7ac0340a5857880ef3f259d0d272e3f3ec08526fe4289a3ca0965eb255b84feebe35f
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAP18:P6QFElP6k+MRQMOtEvwDpjBQpVX/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/652-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/652-10-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000023237-14.dat	CryptoLocker_rule2
behavioral2/memory/1412-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/652-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/652-10-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0008000000023237-14.dat	CryptoLocker_set1
behavioral2/memory/1412-26-0x0000000000500000-0x000000000050B000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1412	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 652 wrote to memory of 1412	652	2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe	92
PID 652 wrote to memory of 1412	652	2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe	92
PID 652 wrote to memory of 1412	652	2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-19_8725e4a8dc685bb36af63590650c3c71_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:652
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1412

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=4484 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
1⤵
PID:2724

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
46KB

MD5
946b4330d32f039e3139e1917fc36531

SHA1
a3e95b298b22f347e859208dfc4b6eaf1f0ed0ad

SHA256
1cbdbcaead846da1318b961e3c8c97b825fdcdf7083d11743b25833b9fe7a268

SHA512
2b987939b962821c84fe0eb9408b63337b2b4ae7d7671f1c14573ff77e3da302e2bd3b598337f4cba0a3566977f6cbc3a99ca4e6220f35e2b3a3c6d1a08b5a21

Download Submit
memory/652-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/652-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/652-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/652-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/652-10-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1412-19-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1412-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1412-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download