beda12d33f967d7034117e4929b307adac6fb0dda000eec805a4a489d97a7507

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 10:03

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General

Target

2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe
Size

92KB
MD5

e2bc4927b387faa8785b1753958a5eb2
SHA1

858029788d09ac54e7c853fa5d5e1320f31736e0
SHA256

beda12d33f967d7034117e4929b307adac6fb0dda000eec805a4a489d97a7507
SHA512

05b13a275bba05660d88c8d4736268854e00c6f8ce4b8cabb172e0fba3870a6177ac455b387527691aa5f1484034e993b8d471273b67c5bcd914099201190d33
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgddd:AnBdOOtEvwDpj6zp

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4168	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5024-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000b0000000233b2-13.dat	upx
behavioral2/memory/5024-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4168-27-0x0000000000500000-0x000000000050F000-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	2024-09-02_e2bc4927b387faa8785b1753958a5eb2_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 5024 wrote to memory of 4168	5024	2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe	87
PID 5024 wrote to memory of 4168	5024	2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe	87
PID 5024 wrote to memory of 4168	5024	2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-02_e2bc4927b387faa8785b1753958a5eb2_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5024
- 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:4168

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
92KB

MD5
fad964aafcdac6b75ea740bb8c16781b

SHA1
ef5b371ee37f99331e476f9190cbabeb5e2e7d1d

SHA256
0353f2718b0d85d3c14acc778bf0f3847d37ff8da3ab713b75ba90e20f707eea

SHA512
9ab45e600d398db336733d0609d7fc690845630e9b0dde849473a33de4a381f1f7f3da084a68b82079758fbecbb0fb402c7f4d312e02c098256f3d283ec044cb

Download Submit
memory/4168-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4168-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4168-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/5024-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/5024-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/5024-2-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/5024-3-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/5024-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download