blacknet | 5b14d9674cbd536403423c9822182497469034a86ad12ced50ab02bdc9166cce

System Information Discovery

Processes:

5de9dcc57b578bf915e553ae272269dc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5de9dcc57b578bf915e553ae272269dc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5de9dcc57b578bf915e553ae272269dc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

5de9dcc57b578bf915e553ae272269dc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	5de9dcc57b578bf915e553ae272269dc.exe

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

Processes:

5de9dcc57b578bf915e553ae272269dc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	5de9dcc57b578bf915e553ae272269dc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	5de9dcc57b578bf915e553ae272269dc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5de9dcc57b578bf915e553ae272269dc.exe

description pid process target process

PID 2420 set thread context of 3492 2420 5de9dcc57b578bf915e553ae272269dc.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

368 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1844 PING.EXE

description	pid	process	target process
PID 2420 set thread context of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe

pid	process
368	schtasks.exe

pid	process
1844	PING.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

RegSvcs.exe

pid	process
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe
3492	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 3492 RegSvcs.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

RegSvcs.exe

pid process

3492 RegSvcs.exe
3492 RegSvcs.exe
3492 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3492	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

5de9dcc57b578bf915e553ae272269dc.exeRegSvcs.execmd.exe

description	pid	process	target process
PID 2420 wrote to memory of 368	2420	5de9dcc57b578bf915e553ae272269dc.exe	schtasks.exe
PID 2420 wrote to memory of 368	2420	5de9dcc57b578bf915e553ae272269dc.exe	schtasks.exe
PID 2420 wrote to memory of 368	2420	5de9dcc57b578bf915e553ae272269dc.exe	schtasks.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 2420 wrote to memory of 3492	2420	5de9dcc57b578bf915e553ae272269dc.exe	RegSvcs.exe
PID 3492 wrote to memory of 4172	3492	RegSvcs.exe	cmd.exe
PID 3492 wrote to memory of 4172	3492	RegSvcs.exe	cmd.exe
PID 3492 wrote to memory of 4172	3492	RegSvcs.exe	cmd.exe
PID 4172 wrote to memory of 1844	4172	cmd.exe	PING.EXE
PID 4172 wrote to memory of 1844	4172	cmd.exe	PING.EXE
PID 4172 wrote to memory of 1844	4172	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\5de9dcc57b578bf915e553ae272269dc.exe
"C:\Users\Admin\AppData\Local\Temp\5de9dcc57b578bf915e553ae272269dc.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2420

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TiqvqaWbL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF17.tmp"
2⤵
- Creates scheduled task(s)
PID:368

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3492

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:4172

C:\Windows\SysWOW64\PING.EXE
ping 1.1.1.1 -n 5 -w 5000
4⤵
- Runs ping.exe
PID:1844

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

Peripheral Device Discovery

T1120

Remote System Discovery