90ecbce1c601165aa57c77198e8eabd6ece9be0182602fa9034b5f3c7a0e00fa

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 04:29

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General

Target

2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe
Size

41KB
MD5

997a5ec116cea25013c8d4091f21d1a1
SHA1

01e71752383d932e371a29d00e33d279a7d19e83
SHA256

90ecbce1c601165aa57c77198e8eabd6ece9be0182602fa9034b5f3c7a0e00fa
SHA512

9b146c45cf67849211e5a802198676ee14411105f51aa4db744098e4d7cf02bdb0a9335607dcc497b57eeaa3e7a68729846812a144cb65ed62251dbe0aae2732
SSDEEP

768:ba74zYcgT/EkdCQgpwXFXSqQXfj0xK8z0:ba6YcA/Xk3wXFXSqAJ8g

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3788	hasfj.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5040-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/files/0x0009000000023447-13.dat	upx
behavioral2/memory/5040-17-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/memory/3788-26-0x0000000008000000-0x000000000800F000-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	2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 3788	5040	2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe	83
PID 5040 wrote to memory of 3788	5040	2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe	83
PID 5040 wrote to memory of 3788	5040	2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_997a5ec116cea25013c8d4091f21d1a1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3788

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\hasfj.exe

Filesize
41KB

MD5
2aef2eed63f5fe56db73478d5d3f26d7

SHA1
d76da1bb70c4d54af03e94d8c1de83dd2b4ae366

SHA256
73fc071c267b20e2d74e071cb169c4b54b11ca1cbc9c7b78e7421bfd84041dd2

SHA512
de13d997f88a62cc6c0b41fd7e76e4b3ae817b4549de1e94df1719a61db3c83ea233aed814ed15026e05c49e18e444d73e02aec5c8b2e4d954e0607eced4735f

Download Submit
memory/3788-25-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3788-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3788-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/5040-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/5040-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5040-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5040-3-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/5040-17-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download