f128537f5de7f5961b2b81521d4ee970bed5c0ad400b11ebcf8c83adbb7cbea0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 16:09

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General

Target

2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe
Size

76KB
MD5

fe63a9819b20d3f760f8ea7ad462fab7
SHA1

344400a792d4110c104a0f0c4601d2f91daf1812
SHA256

f128537f5de7f5961b2b81521d4ee970bed5c0ad400b11ebcf8c83adbb7cbea0
SHA512

4c030160a95805c97a2fd1c976eceffd0ff827e1eb3473f078808fd0c59fbe5e6e914d3e707eb1734b6412ed6ce1c805cf60a2921330028705269b46f7f3018b
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkx:X6a+SOtEvwDpjBZYvQd2q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002336e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002336e-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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3192	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 2560 wrote to memory of 3192	2560	2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe	79
PID 2560 wrote to memory of 3192	2560	2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe	79
PID 2560 wrote to memory of 3192	2560	2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe	79

C:\Users\Admin\AppData\Local\Temp\2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_fe63a9819b20d3f760f8ea7ad462fab7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3192

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
77KB

MD5
79459e488f35fb8b1a321d90a189fcc7

SHA1
b653648d848d2987089d4cab2a990bc6496b60e2

SHA256
c02807dce7afcbd44b6e5741a795078cf9a3932e49a65f863c50e9f26dedf3f1

SHA512
5d3e91eb0fa92a02f249ef0548d0ca3e7a6bb90f1b87ff960bf16678c36b10edc80f850ebe9a902f60dd81ea94a3229155d75323228b11dac282208fad3f8f1c

Download Submit
memory/2560-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2560-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2560-8-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3192-18-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3192-17-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download