asyncrat | 672ad2d52af206cc63cebe2c801181d3b406aae5891cc57bdaafd5eea3d61fe6

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	._cache_New Text Document mod.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	New Text Document mod.exe

Executes dropped EXE 10 IoCs

pid	Process
1368	._cache_New Text Document mod.exe
3056	Synaptics.exe
2532	._cache_Synaptics.exe
1220	ogpayload.exe
4400	Client-base.exe
1368	._cache_New Text Document mod.exe
3056	Synaptics.exe
2532	._cache_Synaptics.exe
1220	ogpayload.exe
4400	Client-base.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	New Text Document mod.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 9 IoCs

Web Service

T1102

flow	ioc
40	0.tcp.in.ngrok.io
158	2.tcp.eu.ngrok.io
190	0.tcp.in.ngrok.io
201	2.tcp.eu.ngrok.io
205	2.tcp.eu.ngrok.io
31	raw.githubusercontent.com
32	raw.githubusercontent.com
73	2.tcp.eu.ngrok.io
141	0.tcp.in.ngrok.io

Looks up external IP address via web service 3 IoCs

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

flow	ioc
34	ip-api.com
148	ip-api.com
197	ip-api.com

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1164	powershell.exe

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3896	964	WerFault.exe	97
4680	2956	WerFault.exe	117
3896	964	WerFault.exe	97
4680	2956	WerFault.exe	117

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Text Document mod.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ogpayload.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
844	PING.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor 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\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	New Text Document mod.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
844	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
2624	schtasks.exe
3440	schtasks.exe
3948	schtasks.exe
824	schtasks.exe
4660	schtasks.exe
2640	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1452	EXCEL.EXE
1452	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	._cache_New Text Document mod.exe
Token: SeDebugPrivilege	2532	._cache_Synaptics.exe
Token: SeDebugPrivilege	1220	ogpayload.exe
Token: SeDebugPrivilege	1368	._cache_New Text Document mod.exe
Token: SeDebugPrivilege	2532	._cache_Synaptics.exe
Token: SeDebugPrivilege	1220	ogpayload.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE
1452	EXCEL.EXE

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 1368	4928	New Text Document mod.exe	83
PID 4928 wrote to memory of 1368	4928	New Text Document mod.exe	83
PID 4928 wrote to memory of 3056	4928	New Text Document mod.exe	85
PID 4928 wrote to memory of 3056	4928	New Text Document mod.exe	85
PID 4928 wrote to memory of 3056	4928	New Text Document mod.exe	85
PID 3056 wrote to memory of 2532	3056	Synaptics.exe	86
PID 3056 wrote to memory of 2532	3056	Synaptics.exe	86
PID 1368 wrote to memory of 1220	1368	._cache_New Text Document mod.exe	89
PID 1368 wrote to memory of 1220	1368	._cache_New Text Document mod.exe	89
PID 1368 wrote to memory of 1220	1368	._cache_New Text Document mod.exe	89
PID 1368 wrote to memory of 4400	1368	._cache_New Text Document mod.exe	94
PID 1368 wrote to memory of 4400	1368	._cache_New Text Document mod.exe	94
PID 1220 wrote to memory of 2624	1220	ogpayload.exe	95
PID 1220 wrote to memory of 2624	1220	ogpayload.exe	95
PID 1220 wrote to memory of 2624	1220	ogpayload.exe	95
PID 4928 wrote to memory of 1368	4928	New Text Document mod.exe	83
PID 4928 wrote to memory of 1368	4928	New Text Document mod.exe	83
PID 4928 wrote to memory of 3056	4928	New Text Document mod.exe	85
PID 4928 wrote to memory of 3056	4928	New Text Document mod.exe	85
PID 4928 wrote to memory of 3056	4928	New Text Document mod.exe	85
PID 3056 wrote to memory of 2532	3056	Synaptics.exe	86
PID 3056 wrote to memory of 2532	3056	Synaptics.exe	86
PID 1368 wrote to memory of 1220	1368	._cache_New Text Document mod.exe	89
PID 1368 wrote to memory of 1220	1368	._cache_New Text Document mod.exe	89
PID 1368 wrote to memory of 1220	1368	._cache_New Text Document mod.exe	89
PID 1368 wrote to memory of 4400	1368	._cache_New Text Document mod.exe	94
PID 1368 wrote to memory of 4400	1368	._cache_New Text Document mod.exe	94
PID 1220 wrote to memory of 2624	1220	ogpayload.exe	95
PID 1220 wrote to memory of 2624	1220	ogpayload.exe	95
PID 1220 wrote to memory of 2624	1220	ogpayload.exe	95

C:\Users\Admin\AppData\Local\Temp\New Text Document mod.exe
"C:\Users\Admin\AppData\Local\Temp\New Text Document mod.exe"
1⤵
- Quasar RAT
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\._cache_New Text Document mod.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_New Text Document mod.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1368
- - C:\Users\Admin\AppData\Local\Temp\a\ogpayload.exe
    "C:\Users\Admin\AppData\Local\Temp\a\ogpayload.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1220
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "Windows Defender Startup Scan" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\a\ogpayload.exe" /rl HIGHEST /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2624
  - - C:\Users\Admin\AppData\Roaming\Windows Defender\comctl32.exe
      "C:\Users\Admin\AppData\Roaming\Windows Defender\comctl32.exe"
      4⤵
      PID:964
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /create /tn "Windows Defender Startup Scan" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Defender\comctl32.exe" /rl HIGHEST /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:3948
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\98XZmpy1bJmm.bat" "
        5⤵
        
        PID:2300
      - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        6⤵
        
        PID:404
      - C:\Windows\SysWOW64\PING.EXE
        
        ping -n 10 localhost
        6⤵
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:844
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 2200
        5⤵
        Program crash
        
        PID:3896
- - C:\Users\Admin\AppData\Local\Temp\a\Client-base.exe
    "C:\Users\Admin\AppData\Local\Temp\a\Client-base.exe"
    3⤵
    - Executes dropped EXE
    PID:4400
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:3440
- - C:\Users\Admin\AppData\Local\Temp\a\Servers.exe
    "C:\Users\Admin\AppData\Local\Temp\a\Servers.exe"
    3⤵
    PID:2476
  - - C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Server Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsLockerZAP\Windows Defender SmartScreen (32 bit).exe" /rl HIGHEST /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:824
  - - C:\Users\Admin\AppData\Roaming\WindowsLockerZAP\Windows Defender SmartScreen (32 bit).exe
      "C:\Users\Admin\AppData\Roaming\WindowsLockerZAP\Windows Defender SmartScreen (32 bit).exe"
      4⤵
      PID:2544
    - - C:\Windows\SYSTEM32\schtasks.exe
        
        "schtasks" /create /tn "Server Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsLockerZAP\Windows Defender SmartScreen (32 bit).exe" /rl HIGHEST /f
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4660
- - C:\Users\Admin\AppData\Local\Temp\a\FXServer.exe
    "C:\Users\Admin\AppData\Local\Temp\a\FXServer.exe"
    3⤵
    PID:3036
- - C:\Users\Admin\AppData\Local\Temp\a\mac.exe
    "C:\Users\Admin\AppData\Local\Temp\a\mac.exe"
    3⤵
    PID:3872
- - C:\Users\Admin\AppData\Local\Temp\a\Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\a\Loader.exe"
    3⤵
    PID:4960
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\ProgramData\System.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2640
- - C:\Users\Admin\AppData\Local\Temp\a\win.exe
    "C:\Users\Admin\AppData\Local\Temp\a\win.exe"
    3⤵
    PID:2956
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\run.ps1"
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:1164
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2956 -s 1688
      4⤵
      Program crash
      PID:4680
- - C:\Users\Admin\AppData\Local\Temp\a\ciscotest.exe
    "C:\Users\Admin\AppData\Local\Temp\a\ciscotest.exe"
    3⤵
    PID:2312
- - C:\Users\Admin\AppData\Local\Temp\a\Discord.exe
    "C:\Users\Admin\AppData\Local\Temp\a\Discord.exe"
    3⤵
    PID:4928
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2532

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 964 -ip 964
1⤵
PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2956 -ip 2956
1⤵
PID:3144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

Remote System Discovery

T1018

System Information Discovery