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
141s -
max time network
136s -
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.BunifuTextBox.xml
-
Size
59KB
-
MD5
b4aca46463c3f2cbe8091312ac00fe82
-
SHA1
1d8316953ba71c6bbf0bab013c00d730259d5b23
-
SHA256
2e81043a42ea70ff659fbd3791f41ab16c1e9ff33047010c489cb2ea0b0adafd
-
SHA512
13d6edf2913dfa698f867af81c23403fd97b4a95fb9aba083f1bda4be41c0d91bc768205d088a69a97179f187c25b00cf92db15b6f42985a135b6522154fa225
-
SSDEEP
1536:QHos9Icq/BMQgVIaw4kCoPiyEK3gLGPfiCeC3Q4qdkzyW/fkAsm9E9acJiljoyed:e
Malware Config
Signatures
-
description ioc Process Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1000238929" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{65986679-1876-11EE-BCBE-422BD5BB252E} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "972736301" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31042691" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000774e79b91c988e4c8fb9433f502e34ee00000000020000000000106600000001000020000000fdeedff69e9f97d92f1cc1ce0391b80ddcdfac80798659aaed77a9d2755cf45f000000000e8000000002000020000000124dce2cd07052e17c7a3e3d2a02c8e0dea2ab6979aa8fc79e12a1fe71af2dad2000000034c31cc53b61f0b38de65d5a63093479939f88b8a1bf38084608e5ae4e82be454000000006de7420e31fa587e435f2f905c364d1c63bf800452c024c2756ada011e538443a9c7fb959160477e19d625c13ddb720de3ecf9d79bb80227201db5d9a80ad87 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "395025705" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "972736301" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042691" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 9003423d83acd901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042691" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000774e79b91c988e4c8fb9433f502e34ee000000000200000000001066000000010000200000000620c5e2305eb7c2eea61082c58c2343e34b8f6322e118df804f022d59c6965e000000000e8000000002000020000000ae77a81af7bc9aa52f0608e8c458db0d1fbda2ea26d5b7d4e4aa9abcf094493f20000000407e15bd88490856670e496aa8ecc0ef4f0534cb0ea0bf38d6c6c82792443f8e400000007d87a1f935bc500596b50f6efba55b4aaf9c658581f214591839c01142868d74b644c8123942696cedb6f4c1ec13a20e83922d0ac7a629c0034b2eae6de001fd iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 5060573d83acd901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4176 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4176 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4176 iexplore.exe 4176 iexplore.exe 3832 IEXPLORE.EXE 3832 IEXPLORE.EXE 3832 IEXPLORE.EXE 3832 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3392 wrote to memory of 4176 3392 MSOXMLED.EXE 85 PID 3392 wrote to memory of 4176 3392 MSOXMLED.EXE 85 PID 4176 wrote to memory of 3832 4176 iexplore.exe 87 PID 4176 wrote to memory of 3832 4176 iexplore.exe 87 PID 4176 wrote to memory of 3832 4176 iexplore.exe 87
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.BunifuTextBox.xml"1⤵
- Suspicious use of WriteProcessMemory
PID:3392 -
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.BunifuTextBox.xml2⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4176 CREDAT:17410 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3832
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee