29bef0f418e8db09f46ea4ea98c9ca420bc3617942e3a64b18dacac0803e3126

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 21:24

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General

Target

2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe
Size

42KB
MD5

3827ef0aae55f611d87d0730a7bd4ae2
SHA1

7723b55e7ecbe40adfaa57f493671139e49a44c7
SHA256

29bef0f418e8db09f46ea4ea98c9ca420bc3617942e3a64b18dacac0803e3126
SHA512

988477080adae4ea78737023a8286563b3ba385df5f19377d4299b590fcaff44610d59eb478588a90cfce4c285ec8f7dbed87b1b6f4c5fe3521e0112e659ef12
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bTNb:ZzFbxmLPWQMOtEvwDpjLeU3R

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002320c-13.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-1-5-21-2828415587-3732861812-1919322417-1000\Control Panel\International\Geo\Nation	2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2220	misid.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 5044 wrote to memory of 2220	5044	2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe	90
PID 5044 wrote to memory of 2220	5044	2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe	90
PID 5044 wrote to memory of 2220	5044	2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_3827ef0aae55f611d87d0730a7bd4ae2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2220

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\misid.exe

Filesize
42KB

MD5
d05d6436a4a0cefebaa6abe7d455d504

SHA1
0ea637beea1f957b161942fddd140ef7fad3b226

SHA256
e5edadeeb4f556c4f03c90c1d2323a120a23e53734ec9745aebd15568c33a2f4

SHA512
d25d88663e172ebfe456d28467c3763c1b1ca7f5fd3ed2146e04425737b631ce282eb4cab127e3f58e292047251df39a6e2849c7ef3d0774b290152707b9ad14

Download Submit
memory/2220-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2220-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2220-24-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/5044-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/5044-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/5044-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/5044-3-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/5044-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download