Overview
overview
7Static
static
7Kirsty.rar
windows7-x64
3Kirsty.rar
windows10-2004-x64
3Kirsty/Kir...config
windows7-x64
3Kirsty/Kir...config
windows10-2004-x64
3Kirsty/lib...rt.dll
windows7-x64
1Kirsty/lib...rt.dll
windows10-2004-x64
1Kirsty/lib...or.dll
windows7-x64
1Kirsty/lib...or.dll
windows10-2004-x64
1Kirsty/lib...or.xml
windows7-x64
1Kirsty/lib...or.xml
windows10-2004-x64
1Kirsty/lib...el.dll
windows7-x64
1Kirsty/lib...el.dll
windows10-2004-x64
1Kirsty/lib...el.xml
windows7-x64
1Kirsty/lib...el.xml
windows10-2004-x64
5Kirsty/lib...es.dll
windows7-x64
1Kirsty/lib...es.dll
windows10-2004-x64
1Kirsty/lib...es.xml
windows7-x64
1Kirsty/lib...es.xml
windows10-2004-x64
1Kirsty/lib...er.dll
windows7-x64
1Kirsty/lib...er.dll
windows10-2004-x64
1Kirsty/lib...er.xml
windows7-x64
1Kirsty/lib...er.xml
windows10-2004-x64
5Kirsty/lib...ar.dll
windows7-x64
1Kirsty/lib...ar.dll
windows10-2004-x64
1Kirsty/lib...ar.xml
windows7-x64
1Kirsty/lib...ar.xml
windows10-2004-x64
1Kirsty/lib...ox.dll
windows7-x64
1Kirsty/lib...ox.dll
windows10-2004-x64
1Kirsty/lib...ox.xml
windows7-x64
1Kirsty/lib...ox.xml
windows10-2004-x64
1Kirsty/lib...ch.dll
windows7-x64
1Kirsty/lib...ch.dll
windows10-2004-x64
1Analysis
-
max time kernel
120s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
02/07/2023, 01:17
Behavioral task
behavioral1
Sample
Kirsty.rar
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
Kirsty.rar
Resource
win10v2004-20230621-en
Behavioral task
behavioral3
Sample
Kirsty/Kirsty.exe.config
Resource
win7-20230621-en
Behavioral task
behavioral4
Sample
Kirsty/Kirsty.exe.config
Resource
win10v2004-20230621-en
Behavioral task
behavioral5
Sample
Kirsty/lib/BCMakeCert.dll
Resource
win7-20230621-en
Behavioral task
behavioral6
Sample
Kirsty/lib/BCMakeCert.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral7
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSeparator.dll
Resource
win7-20230621-en
Behavioral task
behavioral8
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSeparator.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral9
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSeparator.xml
Resource
win7-20230621-en
Behavioral task
behavioral10
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSeparator.xml
Resource
win10v2004-20230621-en
Behavioral task
behavioral11
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShadowPanel.dll
Resource
win7-20230621-en
Behavioral task
behavioral12
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShadowPanel.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral13
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShadowPanel.xml
Resource
win7-20230621-en
Behavioral task
behavioral14
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShadowPanel.xml
Resource
win10v2004-20230621-en
Behavioral task
behavioral15
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShapes.dll
Resource
win7-20230621-en
Behavioral task
behavioral16
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShapes.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral17
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShapes.xml
Resource
win7-20230621-en
Behavioral task
behavioral18
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuShapes.xml
Resource
win10v2004-20230621-en
Behavioral task
behavioral19
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSlider.dll
Resource
win7-20230621-en
Behavioral task
behavioral20
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSlider.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral21
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSlider.xml
Resource
win7-20230621-en
Behavioral task
behavioral22
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSlider.xml
Resource
win10v2004-20230621-en
Behavioral task
behavioral23
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSnackbar.dll
Resource
win7-20230621-en
Behavioral task
behavioral24
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSnackbar.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral25
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSnackbar.xml
Resource
win7-20230621-en
Behavioral task
behavioral26
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuSnackbar.xml
Resource
win10v2004-20230621-en
Behavioral task
behavioral27
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuTextBox.dll
Resource
win7-20230621-en
Behavioral task
behavioral28
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuTextBox.dll
Resource
win10v2004-20230621-en
Behavioral task
behavioral29
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuTextBox.xml
Resource
win7-20230621-en
Behavioral task
behavioral30
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuTextBox.xml
Resource
win10v2004-20230621-en
Behavioral task
behavioral31
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuToggleSwitch.dll
Resource
win7-20230621-en
Behavioral task
behavioral32
Sample
Kirsty/lib/Bunifu.UI.WinForms.BunifuToggleSwitch.dll
Resource
win10v2004-20230621-en
General
-
Target
Kirsty/lib/Bunifu.UI.WinForms.BunifuShadowPanel.xml
-
Size
7KB
-
MD5
f9ba79a783640929abe7d521d0cc5ff4
-
SHA1
5f18d4042e659bc3187b9566482f521f2d6b9b5b
-
SHA256
929c04c3ff78815270d712833b58bfdd68fdb30823fee5b4e4addaf36ae83b86
-
SHA512
b4a69c900a8155954a9af9ea0c7a36e50a992b7b70bb2564c4144789ec492feb2609f64262c173a5f1b8df827e7400cc2ae6571af35f7cb6c95f6bbc067c9ffa
-
SSDEEP
96:92Of8a201jW2gt+2bPanU2uTLiobMCv3DbMWbnMqaWM46xMy+KiKQ5J:8bQgdTIuTLiobHv3Dbzbn/aWw5iKQP
Malware Config
Signatures
-
Drops file in System32 directory 8 IoCs
description ioc Process File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{990506D4-7528-458B-93ED-4C833592A412}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{75922F00-537C-40FE-B219-59204B2AA441}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6AD68180-C4A7-4C71-8F36-376299B5E35D}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{D1A67BAF-2FC9-4E07-906E-037B9C8CAD7C}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{74810DAA-0BF7-4458-BD46-35018F893584}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{FD441F77-C185-48A1-B7E4-2C4209EF5F81}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{EB5ED226-139E-4626-8419-8CC2014FC20F}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{4EDA91EC-6EB7-46D9-9CA7-2B891464301D}.catalogItem svchost.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "968158432" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "980503077" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042691" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c00b753b83acd901 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000003baaf03b17dd442a33931e427c3604200000000020000000000106600000001000020000000e8e8c43c31cd44cdcfaed7545e02b84e4933b3ca93cd16ace6dc7db17e652ed1000000000e8000000002000020000000787f0cd5a8d7e8e1222537d28de47cf31dd48838b0e7d41802dce404fa3e3461200000005d91d6795f556a527863718ee7e411ceabc2771dccadc117d410147c410bf5d640000000226dbf6402e9043d3e4372294b6b8526bf0bbda3491fb3587c2c92cc3ceb4e841edfcf952d105b07a4710f3419deafa47de62fe25c7998664c0bf464a8701d32 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{64FA4F94-1876-11EE-910D-768165A4430C} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "968158432" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042691" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "395025703" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31042691" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000003baaf03b17dd442a33931e427c36042000000000200000000001066000000010000200000009314040b1dfd814d1d5a91e31c422f7ef6dfb253d3f05a4c36000dc26a1a8dc9000000000e8000000002000020000000b9cb384461b429ec47bfd8691a1b809a392bc55f8e0097c1900c899d793c6d95200000002b338594b3b29c7d4e0298e7e8421cb50abfbf1bf45ec3464e232d6c18cec9e3400000008140e98025e67d4b71f75d28687c83efd1c302140668efd6bc56bf8110ab309376bf0ce88b8aa521d547e357df2858b2c4b5b7782a0a43ce66120253d9b68eb7 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 804a8f3b83acd901 iexplore.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4604 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4604 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4604 iexplore.exe 4604 iexplore.exe 1864 IEXPLORE.EXE 1864 IEXPLORE.EXE 1864 IEXPLORE.EXE 1864 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3040 wrote to memory of 4604 3040 MSOXMLED.EXE 81 PID 3040 wrote to memory of 4604 3040 MSOXMLED.EXE 81 PID 4604 wrote to memory of 1864 4604 iexplore.exe 83 PID 4604 wrote to memory of 1864 4604 iexplore.exe 83 PID 4604 wrote to memory of 1864 4604 iexplore.exe 83
Processes
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C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE"C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\Kirsty\lib\Bunifu.UI.WinForms.BunifuShadowPanel.xml"1⤵
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\Kirsty\lib\Bunifu.UI.WinForms.BunifuShadowPanel.xml2⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4604 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4604 CREDAT:17410 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1864
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-
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
PID:4880
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee