mercurialgrabber | 14c880901bd29af48aabce0d923ea3c5a29dee581232eb01b73ab73e4044df5e

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	a.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\VMWare, Inc.\VMWare Tools	a.exe

Checks BIOS information in registry 2 TTPs 1 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\VideoBiosVersion	a.exe

Executes dropped EXE 2 IoCs

pid	Process
2256	comprimir.exe
2748	a.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	cmd.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
10	discord.com
8	discord.com
9	discord.com

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip4.seeip.org
6	ip-api.com

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	a.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	a.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 1 IoCs

SCSI 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\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	a.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2748	a.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2300	2032	JaffaCakes118_211bc13475836d338efad27fcfb93854.exe	31
PID 2032 wrote to memory of 2300	2032	JaffaCakes118_211bc13475836d338efad27fcfb93854.exe	31
PID 2032 wrote to memory of 2300	2032	JaffaCakes118_211bc13475836d338efad27fcfb93854.exe	31
PID 2300 wrote to memory of 2256	2300	cmd.exe	33
PID 2300 wrote to memory of 2256	2300	cmd.exe	33
PID 2300 wrote to memory of 2256	2300	cmd.exe	33
PID 2256 wrote to memory of 2748	2256	comprimir.exe	34
PID 2256 wrote to memory of 2748	2256	comprimir.exe	34
PID 2256 wrote to memory of 2748	2256	comprimir.exe	34
PID 2748 wrote to memory of 2608	2748	a.exe	37
PID 2748 wrote to memory of 2608	2748	a.exe	37
PID 2748 wrote to memory of 2608	2748	a.exe	37

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_211bc13475836d338efad27fcfb93854.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_211bc13475836d338efad27fcfb93854.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\batch.bat" "
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Users\Admin\AppData\Local\Temp\comprimir.exe
    comprimir.exe -p123 -dC:\Users\Admin\AppData\Local\Temp
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2256
  - - C:\Users\Admin\AppData\Local\Temp\a.exe
      "C:\Users\Admin\AppData\Local\Temp\a.exe"
      4⤵
      Looks for VirtualBox Guest Additions in registry
      Looks for VMWare Tools registry key
      Checks BIOS information in registry
      Executes dropped EXE
      Maps connected drives based on registry
      Checks SCSI registry key(s)
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2748
    - - C:\Windows\system32\WerFault.exe
        
        C:\Windows\system32\WerFault.exe -u -p 2748 -s 1408
        5⤵
        
        PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

6

Virtualization/Sandbox Evasion

2

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service