7f3fb73cc7c78bd7c654c173b31f99fef1e2c41fde0204a5bd8a327f215d4606

Analysis

max time kernel
152s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 03:42

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General

Target

2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe
Size

41KB
MD5

e5346d09b3c0653cfc46fac9fdcd29a2
SHA1

81fa4d54978693a43f37dbbaceb50098f6551e90
SHA256

7f3fb73cc7c78bd7c654c173b31f99fef1e2c41fde0204a5bd8a327f215d4606
SHA512

400cf39fa2f0d31bb4791a287f9dd4932cf675e253fe454676a53e12b27c686b5686809c373acd63f2a742d2eb90d0dd3276281e1f4b1fe890884a9cd1317ebf
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu529hyr:bgGYcA/53GADw8Ch9s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002326d-12.dat	CryptoLocker_rule2

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4676	hasfj.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 3184 wrote to memory of 4676	3184	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	98
PID 3184 wrote to memory of 4676	3184	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	98
PID 3184 wrote to memory of 4676	3184	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4676

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=3104 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:2036

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\hasfj.exe

Filesize
41KB

MD5
5056e0be92e17bded1c258326a80424f

SHA1
f8c199e1344618546bd5f7a46aef05693944826f

SHA256
1554e09df3503787fa08a9f07e0010b82e3bf41153326432dc29cabeb571b633

SHA512
86bfe71eda806191f67a4d1c5f691337b26bffd8e5327920730fed627c96bf48ff5a64213fdc62288ae68613685f0ffa3fb7672be15e23a87eff54fd4f3b5add

Download Submit
memory/3184-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/3184-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/3184-2-0x00000000023B0000-0x00000000023B6000-memory.dmp

Filesize
24KB

Download
memory/4676-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4676-18-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download