1c83b75b84556e1893fd4702b2308969e9a3cd255d72934f953b7a0fdc974f21

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
11/09/2024, 20:21

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General

Target

2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe
Size

40KB
MD5

598e4856e2ea7aaa51790228f6c1648b
SHA1

268f68cccd6becad2a6a2e82a2a73e18ac88ebe2
SHA256

1c83b75b84556e1893fd4702b2308969e9a3cd255d72934f953b7a0fdc974f21
SHA512

1e805c6bfc2e5d66f12c92f35d72c9ba9cfcfd624134da28683a90676b32a06eaf05b68dda75ee83b3c47389e6e8c2c07f858dc05ba617d2b908f7f0da7e2f25
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITN9e:qDdFJy3QMOtEvwDpjjWMl7TNQ

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	2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4972-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000800000002345a-12.dat	upx
behavioral2/memory/4972-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4664-27-0x0000000000500000-0x0000000000510000-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	2024-09-11_598e4856e2ea7aaa51790228f6c1648b_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 4972 wrote to memory of 4664	4972	2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe	84
PID 4972 wrote to memory of 4664	4972	2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe	84
PID 4972 wrote to memory of 4664	4972	2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-11_598e4856e2ea7aaa51790228f6c1648b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4972
- 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:4664

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
40KB

MD5
d2974f7358ccbfee6a8bedd5482deb97

SHA1
a8f2e040fbdee2e1318b715103d635760ff06f56

SHA256
94a2401af6518530d5786eb3274ad349280e584fc556634faf9dc479a1d0555d

SHA512
4eb78f27f571023325c910a0e7ea5468b997141b35213e2ecef8ae514bbf6540abef198a6f09c287e61e10ff18ed95569c3ea6d8c99700048fb4639f5b8ce577

Download Submit
memory/4664-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4664-26-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4664-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4972-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4972-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4972-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4972-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4972-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download