db053e730e3f81528c95a8f43278a638501627fe52c33b8bd1c329f2bcacb957

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
03-10-2024 22:21

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General

Target

2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe
Size

39KB
MD5

cf8a302c97af4f4cbbb3a60d32a576e0
SHA1

d27f01aa73843165deb4a7fbbc1a369ccca5a826
SHA256

db053e730e3f81528c95a8f43278a638501627fe52c33b8bd1c329f2bcacb957
SHA512

7b32b924edbeb4a0a4a8a4c49fdba98b2dc16fbbb5b8bd77775cd6dc4e1a2f54fd1954dbd2d5da5a37b7bbd1b737399dd7d7d3bacb6bbfd1aeabbd368c681b97
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITkd:qDdFJy3QMOtEvwDpjjWMl7TK

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1048	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3240-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000900000002340d-13.dat	upx
behavioral2/memory/3240-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1048-27-0x0000000000500000-0x0000000000510000-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	2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_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 3240 wrote to memory of 1048	3240	2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe	82
PID 3240 wrote to memory of 1048	3240	2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe	82
PID 3240 wrote to memory of 1048	3240	2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_cf8a302c97af4f4cbbb3a60d32a576e0_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3240
- 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:1048

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

Replay Monitor

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Downloads

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

Filesize
39KB

MD5
5758ff1df9daab16c6a129f6cec32ac9

SHA1
7d8ed0e890205e2c934f8c7242130791467de615

SHA256
24d85f161c594cbabebf00ad7c9cf77c19fd96f10c652594129ee2c59a9a59eb

SHA512
231ea0aec998410fb65583012714c85a66472ac7aae3022fbf641c64639d573c3aa24e42ea2975f2a4298eebbb1db18a502aef71526d5d03a3f566d1b23c3cd4

Download Submit
memory/1048-21-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1048-20-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1048-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3240-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3240-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3240-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3240-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3240-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download