Analysis
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max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
22-06-2024 12:55
Static task
static1
Behavioral task
behavioral1
Sample
02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll
Resource
win10v2004-20240226-en
General
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Target
02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll
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Size
376KB
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MD5
02384e3d26963deb41905f2ad34e4aa7
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SHA1
fc5973f87fd3fc370fa2844514f47e8921a7c6fd
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SHA256
6fabb8bc7d0280fd12133c4ca81ce51876a5843baf9e1d17072ff73501332b57
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SHA512
3157e4552900a6246f5988632bb926392d22d90aa67d54209cc68252df027d0e77256c98f9b4bfbf53056ce62aac5b989da76fd1351cc4d863eeec48d943ec18
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SSDEEP
6144:vO3tqChr6sWEFggdltO07/1S0uFMCNLXu4fh9Eo7ZQpa:vTChr6sWEF3FE0uFMCNL+ehGjpa
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\bfbjmoxtlnu = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll\"" regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{51D2E831-F5C6-328E-6360-D817EF4485F4} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{51D2E831-F5C6-328E-6360-D817EF4485F4}\NoExplorer = "1" regsvr32.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "425825928" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 00b76ec2a3c4da01 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000b83a5b05e548842ab0f5667898b701700000000020000000000106600000001000020000000c6679a45c2835485b3c9f2cb548ba8e0ed58e0724e7fd80186ff9002de26c4bf000000000e8000000002000020000000dfce94a51c6ee507816283f710480c957157a2873ede8fee38989dcdd5958c0f2000000087d78cd9c30913b3e6ab9dc6fca7679ca217f9f7e93b45bbd5645576dd071e9c40000000b498152535a5dcfdf54699b05cdebca3940cfcfbcee72646c6d81b13720fe1eae86cbf54c2eca957594d82d9e24e06fbcf44b6db189971f76b7f23e8e03c9ea6 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000b83a5b05e548842ab0f5667898b7017000000000200000000001066000000010000200000009000581af74ec7dbe7837bc7f6173fa622dde5251bd66ee434ca9af6890c4bb2000000000e80000000020000200000005c0db0eca93a7d38d8977f5015949ec9655dea7dda581e77ecd46ee371cbaa4b2000000056c90c2c70bdfe3bf7588cefb3d301db83e5ba73c9468f3399e650aad856b50040000000763534cc5d51f4d6d08d567f5eeacbee20512151be578793cba65c32876d4373e1e6240c72f2f115c57da30040f5095559ff05ea475895fb9eb78076e6709da5 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31114403" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2500629535" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 40262e9aa3c4da01 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2500629535" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = f01f4d9aa3c4da01 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C0650F7F-3096-11EF-B9F7-C2C57F2727CB} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31114403" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31114403" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2517817334" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000b83a5b05e548842ab0f5667898b70170000000002000000000010660000000100002000000010acada301addf23b99b50065c8f7e20fa0e82e6f5032dc69cb640207d6c3113000000000e8000000002000020000000da49722790bc2d503d04a7c4c49c661f3f42d010076d788df1947c8713f8a69520000000fbcd837fe62606f4c1b4475de092eea34983e05e921b00a61f32580d19de625f40000000333d563694c9e8f82acc57c7d6d3a31d8eac409069d8b924bf6ef8c8767a99597143d813581c6adcdabc1ec47159bbe3836180bdba4bd9aed28f5912cc3112a1 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{51D2E831-F5C6-328E-6360-D817EF4485F4}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{51D2E831-F5C6-328E-6360-D817EF4485F4} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{51D2E831-F5C6-328E-6360-D817EF4485F4}\ = "snappyads browser enhancer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{51D2E831-F5C6-328E-6360-D817EF4485F4}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{51D2E831-F5C6-328E-6360-D817EF4485F4}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1592 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1592 iexplore.exe 1592 iexplore.exe 4604 IEXPLORE.EXE 4604 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2388 wrote to memory of 4660 2388 regsvr32.exe 89 PID 2388 wrote to memory of 4660 2388 regsvr32.exe 89 PID 2388 wrote to memory of 4660 2388 regsvr32.exe 89 PID 1592 wrote to memory of 4604 1592 iexplore.exe 92 PID 1592 wrote to memory of 4604 1592 iexplore.exe 92 PID 1592 wrote to memory of 4604 1592 iexplore.exe 92
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2388 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\02384e3d26963deb41905f2ad34e4aa7_JaffaCakes118.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4660
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C:\Program Files (x86)\Internet Explorer\ielowutil.exe"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding1⤵PID:4160
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1592 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4604
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:81⤵PID:3824
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD539789013e9648787db5932ed94566836
SHA1eadc0fa76b355ff12c1c740cb36963d6c0b46ade
SHA2567e65804748310831cd8d58de2c6c1917cd75ee004ffeb74b6b876dc8aa840f83
SHA512014945d6958c8866dd112feb5c9f47434e81c4f675f02f7d52063a2944f3c1e1c6bce81d014f7e5ca60323bbb1a52dd8fd41f30279b80d356e2213338ccd348e
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD586492983a157a0e8ae72e2f1a58576bb
SHA1c82bc10e33ebcddad49908ca3cdabd0d5506ca42
SHA256077b892f3e4f4f4a50f3bcb8e42cff27a705ee4f3d58bd5af9f6bc9a45dc7f16
SHA51280a4c8f94b587af0153cdb5a07c896a28cfbb41d9ff30bf8a68dc0249aecda0615ec74b5c8fb1fecc031cd758433f63bf53cbdba8061417e9d6a1a7a0ce96b24
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee