djvu | ed91448d62d44af828d9f560c1f7648280f256eb388c20157607d948bd3cc4ed

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1859779917-101786662-3680946609-1000\Control Panel\International\Geo\Nation	c5178d2bde804370464beb0a867439df.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1859779917-101786662-3680946609-1000\Control Panel\International\Geo\Nation	c5178d2bde804370464beb0a867439df.exe

Executes dropped EXE 4 IoCs

pid	Process
3396	build2.exe
1960	build2.exe
1996	build3.exe
3668	mstsca.exe

Loads dropped DLL 2 IoCs

pid	Process
1960	build2.exe
1960	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2612	icacls.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
T1552.001
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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\USER\S-1-5-21-1859779917-101786662-3680946609-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\5c1969e1-8d32-4419-a692-646add597c80\\c5178d2bde804370464beb0a867439df.exe\" --AutoStart"	c5178d2bde804370464beb0a867439df.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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
29	api.2ip.ua
30	api.2ip.ua
38	api.2ip.ua

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{862CEE3D-DFF3-4AFF-902C-9F3E20EF5488}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4352 set thread context of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4824 set thread context of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 3396 set thread context of 1960	3396	build2.exe	95

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4992	1960	WerFault.exe	95

Checks processor information in registry 2 TTPs 5 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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

pid	Process
2016	schtasks.exe
1896	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3608	c5178d2bde804370464beb0a867439df.exe
3608	c5178d2bde804370464beb0a867439df.exe
4592	c5178d2bde804370464beb0a867439df.exe
4592	c5178d2bde804370464beb0a867439df.exe
1960	build2.exe
1960	build2.exe
1960	build2.exe
1960	build2.exe
1960	build2.exe
1960	build2.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 4352 wrote to memory of 3608	4352	c5178d2bde804370464beb0a867439df.exe	89
PID 3608 wrote to memory of 2612	3608	c5178d2bde804370464beb0a867439df.exe	90
PID 3608 wrote to memory of 2612	3608	c5178d2bde804370464beb0a867439df.exe	90
PID 3608 wrote to memory of 2612	3608	c5178d2bde804370464beb0a867439df.exe	90
PID 3608 wrote to memory of 4824	3608	c5178d2bde804370464beb0a867439df.exe	91
PID 3608 wrote to memory of 4824	3608	c5178d2bde804370464beb0a867439df.exe	91
PID 3608 wrote to memory of 4824	3608	c5178d2bde804370464beb0a867439df.exe	91
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4824 wrote to memory of 4592	4824	c5178d2bde804370464beb0a867439df.exe	93
PID 4592 wrote to memory of 3396	4592	c5178d2bde804370464beb0a867439df.exe	94
PID 4592 wrote to memory of 3396	4592	c5178d2bde804370464beb0a867439df.exe	94
PID 4592 wrote to memory of 3396	4592	c5178d2bde804370464beb0a867439df.exe	94
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 3396 wrote to memory of 1960	3396	build2.exe	95
PID 4592 wrote to memory of 1996	4592	c5178d2bde804370464beb0a867439df.exe	96
PID 4592 wrote to memory of 1996	4592	c5178d2bde804370464beb0a867439df.exe	96
PID 4592 wrote to memory of 1996	4592	c5178d2bde804370464beb0a867439df.exe	96
PID 1996 wrote to memory of 2016	1996	build3.exe	97
PID 1996 wrote to memory of 2016	1996	build3.exe	97
PID 1996 wrote to memory of 2016	1996	build3.exe	97
PID 3668 wrote to memory of 1896	3668	mstsca.exe	105
PID 3668 wrote to memory of 1896	3668	mstsca.exe	105
PID 3668 wrote to memory of 1896	3668	mstsca.exe	105

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:5068

C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe
"C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe
  "C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3608
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\5c1969e1-8d32-4419-a692-646add597c80" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2612
- - C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe
    "C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4824
  - - C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe
      "C:\Users\Admin\AppData\Local\Temp\c5178d2bde804370464beb0a867439df.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Checks computer location settings
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4592
    - - C:\Users\Admin\AppData\Local\3b3b3098-4fa7-4e32-9346-aad02c9a0e4f\build2.exe
        
        "C:\Users\Admin\AppData\Local\3b3b3098-4fa7-4e32-9346-aad02c9a0e4f\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:3396
      - C:\Users\Admin\AppData\Local\3b3b3098-4fa7-4e32-9346-aad02c9a0e4f\build2.exe
        
        "C:\Users\Admin\AppData\Local\3b3b3098-4fa7-4e32-9346-aad02c9a0e4f\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        
        PID:1960
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 1744
        7⤵
        Program crash
        
        PID:4992
    - - C:\Users\Admin\AppData\Local\3b3b3098-4fa7-4e32-9346-aad02c9a0e4f\build3.exe
        
        "C:\Users\Admin\AppData\Local\3b3b3098-4fa7-4e32-9346-aad02c9a0e4f\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1996
      - C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        6⤵
        Creates scheduled task(s)
        
        PID:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1960 -ip 1960
1⤵
PID:4516

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Windows\SysWOW64\schtasks.exe
  /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
  2⤵
  - Creates scheduled task(s)
  PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

System Information Discovery