Analysis
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max time kernel
95s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05/10/2024, 04:01
Static task
static1
Behavioral task
behavioral1
Sample
161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll
Resource
win7-20240903-en
General
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Target
161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll
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Size
104KB
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MD5
161337d3ffd09408a54f615ee3c1116f
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SHA1
2ce8e4271f993a1611db8084ce3dfb5243f9e71a
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SHA256
dffdeda62abe601e86fdc4a95d710daa9ce5bdd2b8ebdd9f62fd664f2a3ef032
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SHA512
84a66703b483d1782e72284cad089d09eb48f349ae5d360ace682eba68f732257e2c2a929df706cb9bacdc947b785031d41408defb62b47ef0a171f8aa2bdfe9
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SSDEEP
3072:TD09MaWLOdfPQdYeW2URSTmzEuVUP/AytUeGi:laqOdHQoOju+nA0
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1264 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral2/memory/1264-8-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-13-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-12-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-11-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-9-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-6-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-5-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/1264-7-0x0000000000400000-0x000000000041A000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 2020 1712 WerFault.exe 81 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1417742933" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31135451" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{800B925D-82CE-11EF-84CD-62872261FF50} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31135451" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31135451" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1417742933" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1421024276" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "434865864" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1264 rundll32mgr.exe 1264 rundll32mgr.exe 1264 rundll32mgr.exe 1264 rundll32mgr.exe 1264 rundll32mgr.exe 1264 rundll32mgr.exe 1264 rundll32mgr.exe 1264 rundll32mgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1264 rundll32mgr.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3328 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3328 iexplore.exe 3328 iexplore.exe 1692 IEXPLORE.EXE 1692 IEXPLORE.EXE 1692 IEXPLORE.EXE 1692 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 1264 rundll32mgr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 384 wrote to memory of 1712 384 rundll32.exe 81 PID 384 wrote to memory of 1712 384 rundll32.exe 81 PID 384 wrote to memory of 1712 384 rundll32.exe 81 PID 1712 wrote to memory of 1264 1712 rundll32.exe 82 PID 1712 wrote to memory of 1264 1712 rundll32.exe 82 PID 1712 wrote to memory of 1264 1712 rundll32.exe 82 PID 1264 wrote to memory of 3328 1264 rundll32mgr.exe 84 PID 1264 wrote to memory of 3328 1264 rundll32mgr.exe 84 PID 3328 wrote to memory of 1692 3328 iexplore.exe 86 PID 3328 wrote to memory of 1692 3328 iexplore.exe 86 PID 3328 wrote to memory of 1692 3328 iexplore.exe 86
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:384 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1264 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3328 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 6083⤵
- Program crash
PID:2020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1712 -ip 17121⤵PID:2212
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
MD5db7c83e09ebc4317f2bf2df7f66b8513
SHA129d58ef43f72ce7cf79ce6109d038a6c9b4873f0
SHA2561ae4c8aa37bf433bc5b3b45e017c95bf843c7dbbe348c78c7ab6f3cad0fda4b8
SHA5126eb46ae0c3e091ba13b1c0e3fb6de568882940df7968d0e1297568ea5356a4691f2a869c7c9ac9e9642bcc2e4e1388d00b15c663276143e8cb5015ab89c27867
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD58a39ed07c67fd87d3c502fd5913148b7
SHA1ab7eb02ccc5e984b596fd788804eaa9586996207
SHA2566e11d3a4e0cf4ee881925c1cf5ce18476d6bb8e07872142887200bed5ab31cb5
SHA512a6e02588ead78f0c7ea47b8646e5a3dc7fa0713ebd4b8e8727ce06cf79d3454d516889f073acd05bf9deee589620e79363a49a3ef41032b68497b6fa364186b8
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
54KB
MD5fba9053e3a7f286a68a072f5d1b57b42
SHA119c4800e8de1e83ff7bf0b96a96563e8430ce9f3
SHA2565675295a26c3839803fd25fb667f2be09c2b6bf3412202a09c3dfc9a46eb4ca4
SHA512ee53bbd9531801df780279da49bd34863513db67fbacbd6b0abb844d02cb76f5e86ed39ad28585b27aa42d3659a8fc9f3d1459f92f81eca970e69bac7c403c64