231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90

Analysis

max time kernel
168s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 22:20

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General

Target

231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe
Size

500KB
MD5

8b36231f9c9f16e93d0b3ff622951ebf
SHA1

2b876eba7e38cb6885739024b2dc841a3891ab4d
SHA256

231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90
SHA512

ca9557bfae4f90bdbea704362e08815a61bcc7eb82f0268bdf9191e590ac0075ae90408d8d69fe097da997d6b3e43a62caf490aa2a0d5e0ec9271f1f183b0c09
SSDEEP

12288:3aOfzjmhLJfXvYNSK1W1Io18dcFUWVPc29+BV:3aOfzj21vYzW1Io1ptn+BV

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe

Executes dropped EXE 1 IoCs

pid	Process
1032	s2898.exe

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s2898.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s2898.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s2898.exe
File created	C:\Windows\assembly\Desktop.ini	s2898.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s2898.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4784	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe
4784	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe
1032	s2898.exe
1032	s2898.exe
1032	s2898.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	s2898.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1032	s2898.exe
1032	s2898.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1032	4784	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe	84
PID 4784 wrote to memory of 1032	4784	231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe	84

C:\Users\Admin\AppData\Local\Temp\231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe
"C:\Users\Admin\AppData\Local\Temp\231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Users\Admin\AppData\Local\Temp\n2898\s2898.exe
  "C:\Users\Admin\AppData\Local\Temp\n2898\s2898.exe" 139213846824f1dab54ca3f47uyLO19GZIyAMReqh1Q7JsrrXX7hHuStY/EDicrlWigyFGkPjOeYcsxDI2U6QsbRFPeWevM/OoC2RRV2dEDB7yx0DiB/UeRJipn3cPxHviCkUt9vsGD8zCr8RiSYYhkPQtPJQMqhAPmbAJeHMmxJoSq6 /v "C:\Users\Admin\AppData\Local\Temp\231cc528c2c56469cfe4c57e3bca7ee564408c6f2dd1bccf5545460eaa4aaa90.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n2898\s2898.exe

Filesize
225KB

MD5
8d8e499f7e6eca2e0db8cd8e53092393

SHA1
bf92dd793d041dfdfc2bd4f2b6607444b10c4e76

SHA256
ccea408e4f4274927ec734e4b882b00b6073d9d722cc4ddccab8dab38b4c7cfd

SHA512
5dd6dea473ea07e8106c4528d1e6769e5819627e18ab3b40ae5553fad1f5d98f61385b76cdd8c8474b12df6c5a6a4233e11d5ff3fe6a04ca8134197dc659964f

Download Submit
C:\Users\Admin\AppData\Local\Temp\n2898\s2898.exe

Filesize
225KB

MD5
8d8e499f7e6eca2e0db8cd8e53092393

SHA1
bf92dd793d041dfdfc2bd4f2b6607444b10c4e76

SHA256
ccea408e4f4274927ec734e4b882b00b6073d9d722cc4ddccab8dab38b4c7cfd

SHA512
5dd6dea473ea07e8106c4528d1e6769e5819627e18ab3b40ae5553fad1f5d98f61385b76cdd8c8474b12df6c5a6a4233e11d5ff3fe6a04ca8134197dc659964f

Download Submit
memory/1032-135-0x000000001B220000-0x000000001BC56000-memory.dmp

Filesize
10.2MB

Download
memory/1032-136-0x000000000087A000-0x000000000087F000-memory.dmp

Filesize
20KB

Download
memory/1032-137-0x000000000087A000-0x000000000087F000-memory.dmp

Filesize
20KB

Download