7a5e4fd35a1a636ef1beb7e62cc647d7e63f5c7aadd2aa1a49d49c81183aca93

Analysis

max time kernel
89s
max time network
135s
platform
windows10_x64
resource
win10v20201028
submitted
13-11-2020 10:50

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General

Target

Dori.ocx.dll
Size

141KB
MD5

745868c40e6f1d1d40ae60335417f6d7
SHA1

cfe42b4014fc22596b4305271c4a133492603349
SHA256

7a5e4fd35a1a636ef1beb7e62cc647d7e63f5c7aadd2aa1a49d49c81183aca93
SHA512

fae585aa131dfa0c5063991fe13938f73c83d78b43ee142ca39e767ec7db6ec7bb419522b4c0c6c210163b05e95db896388446dd8b70b7a29d4c6fe31d130b18

Score

8^/10

Malware Config

Signatures

Blacklisted process makes network request 1 IoCs

flow	pid	Process
26	512	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3143315372"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30849459"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3143315372"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d07ed4beb3b9d601	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 8007f1beb3b9d601	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30849459"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000001cad0ccd232972468e753df42302a60a0000000002000000000010660000000100002000000002b1a7dd7fe558b500c3057629a12ca810948d818baf5e4aeeb1c1bc8b217f31000000000e80000000020000200000005dc1d7064670b6f02038dd4fe3ebe51c9ae66783004a727f036c30a43264124d20000000fbb0adf3e361a304c3ea42e41e2bd4b73f3773fc89869c78014b20bff3e9da18400000006f9cd93d5a6526ed9bb65949ed95f56f090c8327e28d7316c7554b3fc3dc354fa5c29cb222556c4a220713f9d00ca588b31ab98ec9270dabfafdf83ee61f480d	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000001cad0ccd232972468e753df42302a60a000000000200000000001066000000010000200000001493f7b301f2db0e66a2c821e11ab063772a4e68beb04bfc3285b25605083982000000000e8000000002000020000000461ec731165272f8dc9a2afd92fdad45476d0c33dd4b570f131e56a29fed357a20000000fc68b688f5f204e9bca4f8bdc8bffa0e6fe51eef317a9712c53f4a1ec9ccbe6b40000000a884b6ca54dd5ac5fcec266e81d199d62388d58c68340fa615915221465908e402eb2aabdd941317ef0c6a45bf24381067fd520df2220415a83e0abcbb07e31c	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E6E0F533-25A6-11EB-B59A-EAF55770C779} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2284	powershell.exe
512	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4000	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4000	iexplore.exe
4000	iexplore.exe
2380	IEXPLORE.EXE
2380	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 512	2268	rundll32.exe	69
PID 2268 wrote to memory of 512	2268	rundll32.exe	69
PID 2268 wrote to memory of 512	2268	rundll32.exe	69
PID 4000 wrote to memory of 2380	4000	iexplore.exe	81
PID 4000 wrote to memory of 2380	4000	iexplore.exe	81
PID 4000 wrote to memory of 2380	4000	iexplore.exe	81
PID 3960 wrote to memory of 3636	3960	cmd.exe	85
PID 3960 wrote to memory of 3636	3960	cmd.exe	85
PID 3636 wrote to memory of 3896	3636	forfiles.exe	87
PID 3636 wrote to memory of 3896	3636	forfiles.exe	87
PID 3896 wrote to memory of 2284	3896	cmd.exe	88
PID 3896 wrote to memory of 2284	3896	cmd.exe	88
PID 2284 wrote to memory of 2320	2284	powershell.exe	89
PID 2284 wrote to memory of 2320	2284	powershell.exe	89
PID 2320 wrote to memory of 1572	2320	csc.exe	90
PID 2320 wrote to memory of 1572	2320	csc.exe	90
PID 2284 wrote to memory of 748	2284	powershell.exe	91
PID 2284 wrote to memory of 748	2284	powershell.exe	91
PID 748 wrote to memory of 356	748	csc.exe	92
PID 748 wrote to memory of 356	748	csc.exe	92
PID 2284 wrote to memory of 3032	2284	powershell.exe	57
PID 512 wrote to memory of 3032	512	rundll32.exe	57

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3032
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dori.ocx.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2268
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dori.ocx.dll,#1
    3⤵
    - Blacklisted process makes network request
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:512
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /min forfiles /c "cmd /k @path -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwATgBlAHQAaQBkACcAKQAuAFQA & exit" /p C:\Windows\system32 /s /m po*l.e*e
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3960
- - C:\Windows\system32\forfiles.exe
    forfiles /c "cmd /k @path -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwATgBlAHQAaQBkACcAKQAuAFQA & exit" /p C:\Windows\system32 /s /m po*l.e*e
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3636
  - - C:\Windows\system32\cmd.exe
      /k "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwATgBlAHQAaQBkACcAKQAuAFQA & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3896
    - - C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        
        C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwATgBlAHQAaQBkACcAKQAuAFQA
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2284
      - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\j04s3o5s\j04s3o5s.cmdline"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:2320
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES34BD.tmp" "c:\Users\Admin\AppData\Local\Temp\j04s3o5s\CSC7F67302AD8814C2881F48C1779177F5.TMP"
        7⤵
        
        PID:1572
      - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ksenfjw4\ksenfjw4.cmdline"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:748
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3588.tmp" "c:\Users\Admin\AppData\Local\Temp\ksenfjw4\CSCB4AB3F1D41644231A36353BADBDA74.TMP"
        7⤵
        
        PID:356

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4000
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4000 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/512-31-0x00000000031E0000-0x00000000031F8000-memory.dmp

Filesize
96KB

Download
memory/512-1-0x00000000053E0000-0x00000000053F2000-memory.dmp

Filesize
72KB

Download
memory/2284-9-0x00007FF989BA0000-0x00007FF98A58C000-memory.dmp

Filesize
9.9MB

Download
memory/2284-19-0x000002666A300000-0x000002666A301000-memory.dmp

Filesize
4KB

Download
memory/2284-27-0x000002666A310000-0x000002666A311000-memory.dmp

Filesize
4KB

Download
memory/2284-10-0x000002666A2B0000-0x000002666A2B1000-memory.dmp

Filesize
4KB

Download
memory/2284-28-0x000002666A350000-0x000002666ADA0000-memory.dmp

Filesize
10.3MB

Download
memory/2284-29-0x000002666ADC0000-0x000002666ADD8000-memory.dmp

Filesize
96KB

Download
memory/2284-11-0x000002666AFF0000-0x000002666AFF1000-memory.dmp

Filesize
4KB

Download