6e4afaa07eede316422448b00d80461570a32c7bfb91b061d2971f858a11a972

Analysis

max time kernel
126s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
15/05/2024, 11:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe
Size

34KB
MD5

1fabe94190a787efe535eedd889f69fe
SHA1

301807d3fa2bbb72ca1a3b6c4640e047bb7c61e5
SHA256

6e4afaa07eede316422448b00d80461570a32c7bfb91b061d2971f858a11a972
SHA512

e984083027696ce8f17ef9f90317783a2d8c9c51540329ac6e1b9d87cbb20809070e7f07aa29d8d31b0df2c9a3b27e85199278846c0e6761db0cd6bd1337bb47
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5M4yQPv:bxNrC7kYo1Fxf2rYA7QX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023547-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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	2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4288	pissa.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 2372 wrote to memory of 4288	2372	2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe	89
PID 2372 wrote to memory of 4288	2372	2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe	89
PID 2372 wrote to memory of 4288	2372	2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4288

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=3452,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=3456 /prefetch:8
1⤵
PID:440

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pissa.exe

Filesize
35KB

MD5
46b77d9e413b194390aa19b7ff222583

SHA1
ca5de428e736890c23b5b17a953091b83ac2ab7a

SHA256
81c762bec4e73cbd4f01dbc21f7c2b775d196a7a36c449f34384667215e2593c

SHA512
fda2a02948b6d7a591c00e7b5f0a5e5f2badfd27603fef8791f93c79ef81dffed58c5dcc8f577e804564c51fff174b7268208831f93398d4d3d4d1b9a9d13cec

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/2372-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2372-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4288-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download