8e6fcdd8746fb5ab896ace8de5a7580648da93c482c857c4777480f04bd4d921

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 20:20

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General

Target

2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe
Size

384KB
MD5

cd7a4d8eba70116ad4d659bd1827f3c9
SHA1

3ef86bb1120dbddaec18f56b7a865fed85aba7ae
SHA256

8e6fcdd8746fb5ab896ace8de5a7580648da93c482c857c4777480f04bd4d921
SHA512

a1b34a53799b492dd914cb51ad2f722c66ed00ab46f75285ee9d330b5b168b4a5465bb7d758b8d58957a5c8b1f060ec1b1c4037fbbca99f9f6d99ac667837628
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXE:nnOflT/ZFIjBz3xjTxynGUOUhXE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Processes:

2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

2268 hasfj.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2268	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe

description	pid	process	target process
PID 4488 wrote to memory of 2268	4488	2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe	hasfj.exe
PID 4488 wrote to memory of 2268	4488	2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe	hasfj.exe
PID 4488 wrote to memory of 2268	4488	2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4488

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
PID:2268

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
385KB

MD5
f63858779e4b7ee820d6803b47c96a67

SHA1
368de4ad177a48bc1c551d592933cc8deac04cdd

SHA256
60028602bd7b7fc86e63401a36adc0fab4b57b3a2c5b6f630951808950d9273a

SHA512
a10a090a66151b14ef39c6618e8e3f1e3c76ec09131d4c2914a326ff61bb4b4f075228e3fa5fda9e203963990b3674b20ac0c1713d93825b56e202ae1d298b22

Download Submit
memory/2268-17-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2268-19-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4488-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4488-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4488-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download