Analysis
-
max time kernel
131s -
max time network
168s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 22:00
Behavioral task
behavioral1
Sample
explorer.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
explorer.exe
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
explorer.exe.intermediate.xml
Resource
win7-20221111-en
Behavioral task
behavioral4
Sample
explorer.exe.intermediate.xml
Resource
win10v2004-20221111-en
Behavioral task
behavioral5
Sample
nfzn.dll
Resource
win7-20221111-en
Behavioral task
behavioral6
Sample
nfzn.dll
Resource
win10v2004-20221111-en
Behavioral task
behavioral7
Sample
nfzn.dll.intermediate.xml
Resource
win7-20221111-en
Behavioral task
behavioral8
Sample
nfzn.dll.intermediate.xml
Resource
win10v2004-20221111-en
General
-
Target
nfzn.dll.intermediate.xml
-
Size
381B
-
MD5
1e4a89b11eae0fcf8bb5fdd5ec3b6f61
-
SHA1
4260284ce14278c397aaf6f389c1609b0ab0ce51
-
SHA256
4bb79dcea0a901f7d9eac5aa05728ae92acb42e0cb22e5dd14134f4421a3d8df
-
SHA512
8c290919e456a80d87dd6d243e4713945432b9a2bc158bfa5b81ae9fed1a8dd693da51914fa4014c5b8596e36186a9c891741c3b9011958c7ac240b7d818f815
Malware Config
Signatures
-
Processes:
IEXPLORE.EXEIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000256ed27e8919d04f83812f84ee5c95da000000000200000000001066000000010000200000004ced44455eeccb07d3da583e76ddef1fe4d4d6866e654084e3cfc80ac25b8578000000000e8000000002000020000000d7cfba0e4ab84fcec5be6fe9001ea02ab98c73a81be1f59c81086db92606a8fc20000000213915d5b513f4ce60978257c75d9c1bd17c21e50c575cbbddaeb627bede3a4140000000dcc9b8f1c4ac1b453393639217b93434b703fad0d42c4d520346fa1f036a84d63da36ddc51e07fd150bb19fb582fa364bf1140eaf8babac0e10ee21b62e58061 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 208728697701d901 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{807B7951-6D6A-11ED-8589-FE63F52BA449} = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376218946" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
IEXPLORE.EXEpid process 756 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
IEXPLORE.EXEIEXPLORE.EXEpid process 756 IEXPLORE.EXE 756 IEXPLORE.EXE 624 IEXPLORE.EXE 624 IEXPLORE.EXE 624 IEXPLORE.EXE 624 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
MSOXMLED.EXEiexplore.exeIEXPLORE.EXEdescription pid process target process PID 1396 wrote to memory of 468 1396 MSOXMLED.EXE iexplore.exe PID 1396 wrote to memory of 468 1396 MSOXMLED.EXE iexplore.exe PID 1396 wrote to memory of 468 1396 MSOXMLED.EXE iexplore.exe PID 1396 wrote to memory of 468 1396 MSOXMLED.EXE iexplore.exe PID 468 wrote to memory of 756 468 iexplore.exe IEXPLORE.EXE PID 468 wrote to memory of 756 468 iexplore.exe IEXPLORE.EXE PID 468 wrote to memory of 756 468 iexplore.exe IEXPLORE.EXE PID 468 wrote to memory of 756 468 iexplore.exe IEXPLORE.EXE PID 756 wrote to memory of 624 756 IEXPLORE.EXE IEXPLORE.EXE PID 756 wrote to memory of 624 756 IEXPLORE.EXE IEXPLORE.EXE PID 756 wrote to memory of 624 756 IEXPLORE.EXE IEXPLORE.EXE PID 756 wrote to memory of 624 756 IEXPLORE.EXE IEXPLORE.EXE
Processes
-
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\nfzn.dll.intermediate.xml"1⤵
- Suspicious use of WriteProcessMemory
PID:1396 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe" -nohome2⤵
- Suspicious use of WriteProcessMemory
PID:468 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE" -nohome3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:756 CREDAT:275457 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:624
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
608B
MD58a4abf7ec351c334707faf6b3786953e
SHA19aa1d538a777af61bb72b2bccc79159130611e44
SHA256f3c4de4b487d3c3bc6adeea06412f2629e1625bf088ba74256297d6327a7c7cb
SHA5124af21ddc7fbe39bee61de9af2e2ecb79e02e1fce9a869203423513690c0c3686a8bb338dec9c255aa8d3fcbc896660a5196043b6cc351a4b58ddcc3732882dca