1b76f6c3aa3fdd64895cf7fe23f44df0949f7f4721acd564b726539d2c46b732

Analysis

max time kernel
0s
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
09/06/2024, 08:43

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General

Target

2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe
Size

45KB
MD5

2b7de9acf7686bd15fc22cf14640857d
SHA1

8c9f52fa659cec181b93f6161eaf25634bb486ab
SHA256

1b76f6c3aa3fdd64895cf7fe23f44df0949f7f4721acd564b726539d2c46b732
SHA512

5d96fc72952a9f64c6cf6a9440c6a6ad82b72ec2eb6146c7f7bb3ca921ef16764c1393992b3f932387bbf5e5e0f1da0daefe60525ab2b6ca9db7a42c990143d1
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hi:X6QFElP6n+gJQMOtEvwDpjBmzDkWDti

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002354f-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002354f-15.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.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 2672 wrote to memory of 1572	2672	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	89
PID 2672 wrote to memory of 1572	2672	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	89
PID 2672 wrote to memory of 1572	2672	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  PID:1572

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=4356,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4404 /prefetch:8
1⤵
PID:4844

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
45KB

MD5
ecc3cbcadfede2df90d8dd1ed2be97a8

SHA1
73f3dfb4578afd71e08c58dc2e28640057a6b91d

SHA256
f6b90b3a574f6193b2967cd25c5a11533dc4a97f00b19abb695f8d7ae6cd4dc6

SHA512
33e18c2baf4da1acc0e892f23c741764bdbbcf310cd754bc2425da83e6800232939d0a21582fc83a1ac241121e4b75b896bec5e315e62427b436e931f0fbdf26

Download Submit
memory/1572-23-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1572-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2672-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2672-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2672-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download