bd08145485b4e0bf9d415c2c31b4d77b83251c90a44de5304e491543276a0102

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 14:41

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General

Target

2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe
Size

43KB
MD5

132f6005e12b1906b26c0818a76fe004
SHA1

c58c693f180f438f8d7bfdfbce87991c78c6517c
SHA256

bd08145485b4e0bf9d415c2c31b4d77b83251c90a44de5304e491543276a0102
SHA512

c98d4b8ba07ad9727e6114e7bc5c3a46016234eaafddd0ae7fb7460f6656568898c9a471a973a71256d6c83996964e67b046124a66820c546f65661e110d456d
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0Ee:V6QFElP6n+gMQMOtEvwDpjyaYaFAh+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db2a-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db2a-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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1044	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 3856 wrote to memory of 1044	3856	2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe	96
PID 3856 wrote to memory of 1044	3856	2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe	96
PID 3856 wrote to memory of 1044	3856	2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe	96

C:\Users\Admin\AppData\Local\Temp\2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_132f6005e12b1906b26c0818a76fe004_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1044

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=4220 --field-trial-handle=2272,i,17338911640954948469,1637568328132129119,262144 --variations-seed-version /prefetch:8
1⤵
PID:5040

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
43KB

MD5
58174f19cb4e34869856d10732586a76

SHA1
6539920554f2597444ffa169fb5b6f2b5dae831a

SHA256
9c6d592a7597f787bd37798c3c6222e5e539892e38b9f1448fb5d895e5d89334

SHA512
3140719764d132e23fc1d677978f2180b2b311858c80643e5be87878ea9cf97c3b1148313a36e250b5d1851510c946fb149259e2d9addde807982d590003728a

Download Submit
memory/1044-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1044-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3856-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3856-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3856-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download