a607ced9459fab2917127d76a1749257ab600b18f31c2add75c624ec78774e7c

Analysis

max time kernel
140s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 02:54

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General

Target

2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe
Size

49KB
MD5

ae411872b236d81650ca7838f3c2fb40
SHA1

c43d58e7dc0a01a2b929fa6fbb7e2d030b81b92b
SHA256

a607ced9459fab2917127d76a1749257ab600b18f31c2add75c624ec78774e7c
SHA512

ec44b7a69bdd13955b2282c6913ebea623560e095042d2bfc84358a97ae8b3cbdfbcca44063538a1b0ec7c3f0e32295dcecb2f29ac61d5fcb396d605fe89c94b
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNu:V6a+pOtEvwDpjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002313e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002313e-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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	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 2092 wrote to memory of 3000	2092	2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe	84
PID 2092 wrote to memory of 3000	2092	2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe	84
PID 2092 wrote to memory of 3000	2092	2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_ae411872b236d81650ca7838f3c2fb40_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3000

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
49KB

MD5
c93d5a7533ca0582c0855bb1c4341a46

SHA1
ec2fc1068af1a51e3811d788abb147ffb7316c6d

SHA256
b42ec63f8887b0211067e0279b347c4a547d2a2d88882e1d03c753dfdcd37899

SHA512
a86d62ab4f91a389d22e0ed835670ef270f86f430ace599e3d3ab07fb26d0668e09917281e7cd25c9925468ce372b1c01c54fd99b78c90a69a8a39b8b46cacfb

Download Submit
memory/2092-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2092-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2092-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3000-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3000-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download