77c1933c4311390d9131d1d962138379902158c4cb9a40dd1458ba53565b28f9

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	Malicious77c1933c4311390d.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	Malicious77c1933c4311390d.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Malicious77c1933c4311390d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Malicious77c1933c4311390d.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Malicious77c1933c4311390d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Malicious77c1933c4311390d.exe

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

System Information Discovery
T1082

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

pid	Process
864	systeminfo.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2200	Malicious77c1933c4311390d.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2208	2200	Malicious77c1933c4311390d.exe	30
PID 2200 wrote to memory of 2208	2200	Malicious77c1933c4311390d.exe	30
PID 2200 wrote to memory of 2208	2200	Malicious77c1933c4311390d.exe	30
PID 2200 wrote to memory of 2208	2200	Malicious77c1933c4311390d.exe	30
PID 2208 wrote to memory of 864	2208	cmd.exe	32
PID 2208 wrote to memory of 864	2208	cmd.exe	32
PID 2208 wrote to memory of 864	2208	cmd.exe	32
PID 2208 wrote to memory of 864	2208	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\Malicious77c1933c4311390d.exe
"C:\Users\Admin\AppData\Local\Temp\Malicious77c1933c4311390d.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C systeminfo > C:\Users\Admin\AppData\Local\DontForgetIt\systeminfo.txt
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\systeminfo.exe
    systeminfo
    3⤵
    - Gathers system information
    PID:864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Web Service

T1102

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion