8e353666db876603b0665a665519e55f668e52b3d4e055f20c4ae6c3b183400c

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
06/09/2024, 02:43

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General

Target

2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe
Size

36KB
MD5

9c5cf178de768d32f258229df7ba1d34
SHA1

9d3f04fc663be772711089541f35b402385e358c
SHA256

8e353666db876603b0665a665519e55f668e52b3d4e055f20c4ae6c3b183400c
SHA512

1c50d86e4001f62b9b7cf370d280828f33602bab03c2d91b34d2811f33ff4463f1b34acfc7193a017f23d28e8b12b6f59f751572a1a5d38b9d99f06a919287a8
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITD:qDdFJy3QMOtEvwDpjjWMl7TD

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3560	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4064-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000233d0-13.dat	upx
behavioral2/memory/4064-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3560-27-0x0000000000500000-0x0000000000510000-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	2024-09-06_9c5cf178de768d32f258229df7ba1d34_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 4064 wrote to memory of 3560	4064	2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe	85
PID 4064 wrote to memory of 3560	4064	2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe	85
PID 4064 wrote to memory of 3560	4064	2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_9c5cf178de768d32f258229df7ba1d34_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4064
- 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:3560

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
36KB

MD5
c4a72cadf55c155631db173ae0bec1a6

SHA1
d72595776964532b6653b6a7533b41c42a0b9e2f

SHA256
b6b6c36f6517f8a471864822f9ac71ca3f8614d411870f033415abbbaeefc6a3

SHA512
7041c6c53263d6c874cd158e1d1f3f9fc28d96b974e7c18b802ce064c0571cf1810f88bdb788b307c69857ee82e7a80f74d287f630627453caef7d17a9f7d92b

Download Submit
memory/3560-20-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3560-21-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3560-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4064-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4064-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4064-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4064-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4064-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download