dedc022d077144518beb47d1b9a0f4f6ffb0473850183a14cc441f0e468da644

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2024, 00:39

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General

Target

2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe
Size

39KB
MD5

3a79a61d7bcf587aa18f1ec829775799
SHA1

16041309410de211cc4bb6dda0ecf0a30c25a271
SHA256

dedc022d077144518beb47d1b9a0f4f6ffb0473850183a14cc441f0e468da644
SHA512

5cf7467bf61b48672dbf6a5557c9bb8ddc6f92638fa21ef2a59c71bd9d48a82d16bd56f8afae99a25c4db002b2d848c71dd0d42f56e1528f8052ab66d9d5f76a
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT7:qDdFJy3QMOtEvwDpjjWMl7T7

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4116	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1940-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000233cf-13.dat	upx
behavioral2/memory/1940-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4116-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 4116	1940	2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe	83
PID 1940 wrote to memory of 4116	1940	2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe	83
PID 1940 wrote to memory of 4116	1940	2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_3a79a61d7bcf587aa18f1ec829775799_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4116

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
39KB

MD5
151528fee341332bf37061bb4bcbd299

SHA1
7294ee99e0f0c5b4a6a22a7305fa4118475236af

SHA256
eaa31925491ffcc7480e852b7d84f548a8e548548fc706ad4b465d29d6889924

SHA512
5e61b8ce26a1c6f6cea923a4274d3cb71270e71b9c3d60f510697ae0103b860d5c6faba415b8015bccd76ea1778d3ebeb68161ea2e8fe30363bfd2e768a75e02

Download Submit
memory/1940-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1940-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1940-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1940-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1940-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4116-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4116-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download