40c92384d321d4728f5f8a7e86066069313b91ed9368f0fa50a55b6ec7f72a25

Analysis

max time kernel
31s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12/08/2024, 23:21

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General

Target
KRNL-REBORN/krnlss.exe.xml
Size 202B
Sample240812-3cd1ga1dnd
SHA256 03962ae5a55dfc70e2717771a9a7aa37b956b2c5b4c62e3cff9fe24360250347
MD5 0ed4b3831ff5e91dff636145f68aac4c
SHA1 2d1140812945dc1b9e400a88c911803639cb2e49
SHA512 4039d0272678777ba6fa496baf875050bd4c29352fffd37af8c3c07fb2abeedc54ba04a3dd085b491d848e951ccfcbd67ec7ba50a10ec0c624df45e98c18bf1c
MD5 SHA1 SHA512

Score

3^/10

discovery

Malware Config

Signatures

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	MSOXMLED.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80180b980eedda01	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000d854e951ecdca4792ad3aea80f0355100000000020000000000106600000001000020000000feb0c989c257c54866a106a65dc5c3e62e512933f01a421e42c13ad9dd90fa82000000000e8000000002000020000000d44d0359b60fff1822a4326d9ac17031b656eddf09bd3c9d50fd082899ef662520000000036ff406e354839e2528401f9fcb9ab85f0869e09353625bf3449cea0bb970804000000037e8af6e8ba77f0aaf19715a19aaa890c347e224a839a27d2d09fad8334a920dd0130bc5a9c5b67e58f7a557f870548c323504e932da8120eabc4e4417c012ce	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\SearchScopes	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{C3665E41-5901-11EF-A3CD-E6140BA5C80C} = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3064	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3064	IEXPLORE.EXE
3064	IEXPLORE.EXE
2932	IEXPLORE.EXE
2932	IEXPLORE.EXE
2932	IEXPLORE.EXE
2932	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2772	2756	MSOXMLED.EXE	30
PID 2756 wrote to memory of 2772	2756	MSOXMLED.EXE	30
PID 2756 wrote to memory of 2772	2756	MSOXMLED.EXE	30
PID 2756 wrote to memory of 2772	2756	MSOXMLED.EXE	30
PID 2772 wrote to memory of 3064	2772	iexplore.exe	31
PID 2772 wrote to memory of 3064	2772	iexplore.exe	31
PID 2772 wrote to memory of 3064	2772	iexplore.exe	31
PID 2772 wrote to memory of 3064	2772	iexplore.exe	31
PID 3064 wrote to memory of 2932	3064	IEXPLORE.EXE	32
PID 3064 wrote to memory of 2932	3064	IEXPLORE.EXE	32
PID 3064 wrote to memory of 2932	3064	IEXPLORE.EXE	32
PID 3064 wrote to memory of 2932	3064	IEXPLORE.EXE	32

C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE14\MSOXMLED.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE14\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\KRNL-REBORN\krnlss.exe.xml"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe" -nohome
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE" -nohome
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3064
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3064 CREDAT:275457 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact