f19c000001935d7e500139ae2c32802eca9c375290dd971d12129268dca1cb9e

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 02:28

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General

Target

2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe
Size

75KB
MD5

401163d1067878993010dc309bed1dbe
SHA1

2e1d17f91c29a463cdbc909572d74fff97680533
SHA256

f19c000001935d7e500139ae2c32802eca9c375290dd971d12129268dca1cb9e
SHA512

39308ef8ec7fb916973244375a560dfbe7e1e460c9c234915f003a8ee239cd3fa426be3d61232665b7f3081eb3390a10446949c40039b12bb72d9bd13b8a7b94
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1RUx:X6a+SOtEvwDpjBZYvQd2U

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_401163d1067878993010dc309bed1dbe_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

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

System Information Discovery
T1082

pid	process
412	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe

description	pid	process	target process
PID 436 wrote to memory of 412	436	2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe	asih.exe
PID 436 wrote to memory of 412	436	2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe	asih.exe
PID 436 wrote to memory of 412	436	2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_401163d1067878993010dc309bed1dbe_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:436

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:412

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
76KB

MD5
ee556ff0e50198773945f58cca9f5f6f

SHA1
95a33d7d8d20b377deeff87db21ca880b084d8cc

SHA256
56f13350f764ec7432f2a2df70f23a610a05ef738a5dabc88d348f9d216c8211

SHA512
18f65366ec4c0c89bc0bd01bd621df07e945d9efa6ce6478c6fde0b3018fd6118ff4983d5e49621f343784621fdeda48ed97f1866765d276a8190e1955810ae4

Download Submit
memory/412-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/412-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/436-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/436-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/436-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download