fc410ece2dcec9487f8a0808da84bb255589c14b6efc5a564abb74022e0457f0

Analysis

max time kernel
140s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2022, 19:41

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General

Target

4bb0bcff7ea572dea03d0250e3685278.exe
Size

524KB
MD5

4bb0bcff7ea572dea03d0250e3685278
SHA1

0ac5faddde3debde049e9b13f0f01ba6c08f692b
SHA256

fc410ece2dcec9487f8a0808da84bb255589c14b6efc5a564abb74022e0457f0
SHA512

9335d5d3711fe4fc479ea8295827ec239ea2a6cc7c1b8be3d18ba68deae8ba3254dfb956227aac2d7690b43bc6a369a1e3bff64f3b0bed85ecb7fb29a4b975e0
SSDEEP

12288:AJuKBAjsT2ws4GrRu2QRqxqlOy8AF05yHk67zR960LF:AJuXsTuRRu2wqNGIyHr96i

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__	4bb0bcff7ea572dea03d0250e3685278.exe

Executes dropped EXE 1 IoCs

pid	Process
4872	s2048.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	4bb0bcff7ea572dea03d0250e3685278.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s2048.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s2048.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s2048.exe
File created	C:\Windows\assembly\Desktop.ini	s2048.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s2048.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4704	3924	WerFault.exe	82

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	4bb0bcff7ea572dea03d0250e3685278.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	4bb0bcff7ea572dea03d0250e3685278.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3924	4bb0bcff7ea572dea03d0250e3685278.exe
3924	4bb0bcff7ea572dea03d0250e3685278.exe
4872	s2048.exe
4872	s2048.exe
4872	s2048.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4872	s2048.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4872	s2048.exe
4872	s2048.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 4872	3924	4bb0bcff7ea572dea03d0250e3685278.exe	83
PID 3924 wrote to memory of 4872	3924	4bb0bcff7ea572dea03d0250e3685278.exe	83

C:\Users\Admin\AppData\Local\Temp\4bb0bcff7ea572dea03d0250e3685278.exe
"C:\Users\Admin\AppData\Local\Temp\4bb0bcff7ea572dea03d0250e3685278.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:3924
- C:\Users\Admin\AppData\Local\Temp\n2048\s2048.exe
  "C:\Users\Admin\AppData\Local\Temp\n2048\s2048.exe" ins.exe /t 537f3a01561ca3a61e8b48ee /e 12714677 /u 3609b66c-d077-11e3-8a58-80c16e6f498c /h b720b1.api.socdn.com /v "C:\Users\Admin\AppData\Local\Temp\4bb0bcff7ea572dea03d0250e3685278.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:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 3856
  2⤵
  - Program crash
  PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3924 -ip 3924
1⤵
PID:3096

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\n2048\s2048.exe

Filesize
339KB

MD5
7bfe6bbe12a10323b0aa5c1bad6ecd5b

SHA1
7ce4508ddfa0200a95cdbfbe66c4c6b5a8b87122

SHA256
f15a491ef671ebddcc3710a4817244c18fe1a5dd444c83137c2fbd601d1c7214

SHA512
bf0438520ade14a53c7d8a76b7f7e3d8eec9060003954e0da1ee17ed5db024c44a28bae23ebfaa006fd50da400faf9fc77a4dcb1071d0501d753b47a6146d5d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\n2048\s2048.exe

Filesize
339KB

MD5
7bfe6bbe12a10323b0aa5c1bad6ecd5b

SHA1
7ce4508ddfa0200a95cdbfbe66c4c6b5a8b87122

SHA256
f15a491ef671ebddcc3710a4817244c18fe1a5dd444c83137c2fbd601d1c7214

SHA512
bf0438520ade14a53c7d8a76b7f7e3d8eec9060003954e0da1ee17ed5db024c44a28bae23ebfaa006fd50da400faf9fc77a4dcb1071d0501d753b47a6146d5d7

Download Submit
memory/4872-135-0x00007FFEA3D40000-0x00007FFEA4776000-memory.dmp

Filesize
10.2MB

Download
memory/4872-136-0x0000000000C4A000-0x0000000000C4F000-memory.dmp

Filesize
20KB

Download
memory/4872-137-0x0000000000C4A000-0x0000000000C4F000-memory.dmp

Filesize
20KB

Download