319fb33768722efe21ae0ff42b48d360cc59f6a054032700ffa448ae570c00b3

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 02:52

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General

Target

2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe
Size

41KB
MD5

e464c79390cf783b8ce125ebeb0382fb
SHA1

093e5edf34544d5b99f270bf39c1e85967272252
SHA256

319fb33768722efe21ae0ff42b48d360cc59f6a054032700ffa448ae570c00b3
SHA512

9bc90d10e3e8c45cddf056fb4c073f6cc5e6140ff75ee1db306635a6fbdfc8bfc1522729c16827f959f640f4a0b616c98e305abeb5e09513692af7a4fa2814c8
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfr9Or6:X6QFElP6n+gJQMOtEvwDpjBsYK6r0r6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	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

Processes:

2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2096 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2096	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe

description	pid	process	target process
PID 2648 wrote to memory of 2096	2648	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe
PID 2648 wrote to memory of 2096	2648	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe
PID 2648 wrote to memory of 2096	2648	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2648

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2096

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
41KB

MD5
468b40b337f5185f7b077707620caa8c

SHA1
b088deaf7a8402216d82758a6f9928ed6381bc36

SHA256
c54aa17e66800983d121c20a5c106ea525ccb43b4a89b4bf52bd581fef103cb1

SHA512
122ae79f6b70abf9b40bb03d5caf64f09c4b7774e9f00567bd028b27e5734794a85f2c80b55140e33632bd1922ba0f410eef28f3e68b3dd114e40d7b4df17ea3

Download Submit
memory/2096-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2096-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2648-0-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2648-1-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2648-8-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download