00fe6a4c1308efc66b99ce60ddcc42906807b7b262d56e458d93db801be99051

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 13:53

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General

Target

2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe
Size

45KB
MD5

ca98158d805fb2a737c5aa2b3d9077bb
SHA1

6937ab070b1f00c721a40665d14e792df059f5be
SHA256

00fe6a4c1308efc66b99ce60ddcc42906807b7b262d56e458d93db801be99051
SHA512

29eb0f9e351695c71517f17db1a2c767721e2c757381069b34b5cb1b930ee4e401ae1e999dfaff4639dd40f54761bf11133a535fb53551e5b2fc3ca42d800798
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9o:X6QFElP6n+gJQMOtEvwDpjBmzDkWDu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023537-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023537-12.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1872	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 2800 wrote to memory of 1872	2800	2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe	90
PID 2800 wrote to memory of 1872	2800	2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe	90
PID 2800 wrote to memory of 1872	2800	2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_ca98158d805fb2a737c5aa2b3d9077bb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1872

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=3148,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4404 /prefetch:8
1⤵
PID:4612

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
5de2e05263073e4c0cdbd5239317eac4

SHA1
a0aae1320ee47d9093fb6faf3e228df84deeeffd

SHA256
5bb3d14382eb8bff885d2b345995e7932d5de3424c3e6f2a9bf241a754a277ce

SHA512
271fa614c1b15a03d853867a145396a7418c8f3995d670fbe4a2a373e5d4d951cc31949b237a22eb5cb6095ed060a2d92623cd4075cf76f4e919b7c9d9267f43

Download Submit
memory/2800-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2800-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2800-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download