3733d7fd39cf66c15f685d0c82aee24bc320abc5ceadd701c725602a2973dffb

Analysis

max time kernel
125s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 05:49

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General

Target

2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe
Size

33KB
MD5

9027b089b624692a16b3c8f69fb0e497
SHA1

b68be6455ae93e0fed4a285bd4490a6f752cae0c
SHA256

3733d7fd39cf66c15f685d0c82aee24bc320abc5ceadd701c725602a2973dffb
SHA512

bae92acbf88167a04cddbd1c6f96892c8083a685cae1017e7e23e5627b3ac8ea7da658b39321724c346ef4e2efc676cafd230c091378fe7811f764fd1ce1b54d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5W:bxNrC7kYo1Fxf2rYC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332d-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-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation	2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	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 1408 wrote to memory of 2520	1408	2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe	95
PID 1408 wrote to memory of 2520	1408	2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe	95
PID 1408 wrote to memory of 2520	1408	2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_9027b089b624692a16b3c8f69fb0e497_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1408
- 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:2520

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=3912,i,3743841324023353050,5931777343998032160,262144 --variations-seed-version --mojo-platform-channel-handle=4000 /prefetch:8
1⤵
PID:3612

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\pissa.exe

Filesize
33KB

MD5
9025f0ef817420ce5ecaeca13491bb5c

SHA1
11995aef78d8bfc21508266a83ce31a2b861cdd9

SHA256
16e323269ff96b35d2b5cc850e065e581eb7dfab1a617a97f0890f8dbe943b5c

SHA512
56c6d30968328db1d5971f5455aa6aaf2f4cf5161b992ede042251b241d0c1a9a7ea5919bc732a9a66392557f6f9a8fc74ae822369330dffea7c6937aa19da24

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1408-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1408-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/1408-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2520-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2520-19-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download