djvu | 944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5792	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	AB64.exe

Deletes itself 1 IoCs

pid	Process
3608	Process not Found

Executes dropped EXE 7 IoCs

pid	Process
5116	AB64.exe
832	AB64.exe
3008	AB64.exe
2888	AB64.exe
4068	3565.exe
2740	758D.exe
2064	9153.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3816	icacls.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\53323aa3-bcff-4f91-bef4-6695745fec05\\AB64.exe\" --AutoStart"	AB64.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

Enumerates connected drives 3 TTPs 2 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
File opened (read-only)	\??\D:	explorer.exe
File opened (read-only)	\??\F:	explorer.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
104	raw.githubusercontent.com
105	raw.githubusercontent.com
113	drive.google.com
114	drive.google.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
45	api.2ip.ua
46	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5116 set thread context of 832	5116	AB64.exe	101
PID 3008 set thread context of 2888	3008	AB64.exe	105

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
4508	2888	WerFault.exe	105

Checks SCSI registry key(s) 3 TTPs 3 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	944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-275798769-4264537674-1142822080-1000\{10181D4E-09C2-46B7-8124-0E70C2323EBF}	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4568	944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe
4568	944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
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3608	Process not Found
3608	Process not Found
3608	Process not Found
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3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
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3608	Process not Found
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3608	Process not Found
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3608	Process not Found
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3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found
3608	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4568	944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3608	Process not Found
Token: SeCreatePagefilePrivilege	3608	Process not Found
Token: SeShutdownPrivilege	3608	Process not Found
Token: SeCreatePagefilePrivilege	3608	Process not Found
Token: SeShutdownPrivilege	3608	Process not Found
Token: SeCreatePagefilePrivilege	3608	Process not Found
Token: SeShutdownPrivilege	3608	Process not Found
Token: SeCreatePagefilePrivilege	3608	Process not Found
Token: SeDebugPrivilege	2740	758D.exe
Token: SeDebugPrivilege	5212	powershell.exe
Token: SeShutdownPrivilege	3608	Process not Found
Token: SeCreatePagefilePrivilege	3608	Process not Found
Token: SeShutdownPrivilege	676	explorer.exe
Token: SeCreatePagefilePrivilege	676	explorer.exe
Token: SeShutdownPrivilege	676	explorer.exe
Token: SeCreatePagefilePrivilege	676	explorer.exe
Token: SeShutdownPrivilege	676	explorer.exe
Token: SeCreatePagefilePrivilege	676	explorer.exe
Token: SeShutdownPrivilege	676	explorer.exe
Token: SeCreatePagefilePrivilege	676	explorer.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe

Suspicious use of SendNotifyMessage 9 IoCs

pid	Process
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe
676	explorer.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 216	3608	Process not Found	96
PID 3608 wrote to memory of 216	3608	Process not Found	96
PID 216 wrote to memory of 5908	216	cmd.exe	98
PID 216 wrote to memory of 5908	216	cmd.exe	98
PID 3608 wrote to memory of 5116	3608	Process not Found	100
PID 3608 wrote to memory of 5116	3608	Process not Found	100
PID 3608 wrote to memory of 5116	3608	Process not Found	100
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 5116 wrote to memory of 832	5116	AB64.exe	101
PID 832 wrote to memory of 3816	832	AB64.exe	102
PID 832 wrote to memory of 3816	832	AB64.exe	102
PID 832 wrote to memory of 3816	832	AB64.exe	102
PID 832 wrote to memory of 3008	832	AB64.exe	103
PID 832 wrote to memory of 3008	832	AB64.exe	103
PID 832 wrote to memory of 3008	832	AB64.exe	103
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3008 wrote to memory of 2888	3008	AB64.exe	105
PID 3608 wrote to memory of 4068	3608	Process not Found	109
PID 3608 wrote to memory of 4068	3608	Process not Found	109
PID 3608 wrote to memory of 4068	3608	Process not Found	109
PID 3608 wrote to memory of 1936	3608	Process not Found	110
PID 3608 wrote to memory of 1936	3608	Process not Found	110
PID 1936 wrote to memory of 2736	1936	cmd.exe	112
PID 1936 wrote to memory of 2736	1936	cmd.exe	112
PID 3608 wrote to memory of 2740	3608	Process not Found	113
PID 3608 wrote to memory of 2740	3608	Process not Found	113
PID 3608 wrote to memory of 2064	3608	Process not Found	114
PID 3608 wrote to memory of 2064	3608	Process not Found	114
PID 3608 wrote to memory of 2064	3608	Process not Found	114
PID 2064 wrote to memory of 5212	2064	9153.exe	115
PID 2064 wrote to memory of 5212	2064	9153.exe	115
PID 2064 wrote to memory of 5212	2064	9153.exe	115

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:\Users\Admin\AppData\Local\Temp\944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe
"C:\Users\Admin\AppData\Local\Temp\944704d6eaf814cbeeb67c321251c959ec9bc6e0616aff436d1e17d5574d5353.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4568

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8C61.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:5908

C:\Users\Admin\AppData\Local\Temp\AB64.exe
C:\Users\Admin\AppData\Local\Temp\AB64.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Users\Admin\AppData\Local\Temp\AB64.exe
  C:\Users\Admin\AppData\Local\Temp\AB64.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:832
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\53323aa3-bcff-4f91-bef4-6695745fec05" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3816
- - C:\Users\Admin\AppData\Local\Temp\AB64.exe
    "C:\Users\Admin\AppData\Local\Temp\AB64.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - C:\Users\Admin\AppData\Local\Temp\AB64.exe
      "C:\Users\Admin\AppData\Local\Temp\AB64.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Executes dropped EXE
      PID:2888
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 568
        5⤵
        Program crash
        
        PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2888 -ip 2888
1⤵
PID:1592

C:\Users\Admin\AppData\Local\Temp\3565.exe
C:\Users\Admin\AppData\Local\Temp\3565.exe
1⤵
- Executes dropped EXE
PID:4068

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3F97.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2736

C:\Users\Admin\AppData\Local\Temp\758D.exe
C:\Users\Admin\AppData\Local\Temp\758D.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2740
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  2⤵
  PID:4768

C:\Users\Admin\AppData\Local\Temp\9153.exe
C:\Users\Admin\AppData\Local\Temp\9153.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5212
- C:\Users\Admin\AppData\Local\Temp\9153.exe
  "C:\Users\Admin\AppData\Local\Temp\9153.exe"
  2⤵
  PID:3660
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    PID:2240
- - C:\Windows\system32\cmd.exe
    C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
    3⤵
    PID:624
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      PID:5792
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    PID:3208

C:\Windows\explorer.exe
explorer.exe
1⤵
- Modifies Installed Components in the registry
- Enumerates connected drives
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:676

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:5176

C:\Windows\explorer.exe
explorer.exe
1⤵
PID:4680

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:1388

C:\Windows\explorer.exe
explorer.exe
1⤵
PID:4068

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:4524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

File and Directory Permissions Modification

T1222

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery