Analysis
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max time kernel
141s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
27/01/2025, 20:35
Behavioral task
behavioral1
Sample
JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe
Resource
win7-20240903-en
General
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Target
JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe
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Size
123KB
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MD5
4374bc7c7e064c522ad5b244f7535340
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SHA1
790a9a47c4e2da8d4c3b4bc0c6dc91d623d19d88
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SHA256
31f2cc0bc83c8288abc45f7d57560ab13b6bae574e0944cef4da98f6fd6b3940
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SHA512
06d6a211611838d0cfa4286e62044f4c7b00c08f38d19df3befd32a798870a3a159d5f743349db41933df78f5d8f77030bd8c5d8d70cc21f4fffbaa4f2c5a6bd
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SSDEEP
3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLljqD5:OVYrJrOSsRwcpiF
Malware Config
Signatures
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Manipulates Digital Signatures 1 TTPs 1 IoCs
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 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 regedit.exe -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000a000000023b6d-27.dat acprotect -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation iaccess32.exe -
Executes dropped EXE 1 IoCs
pid Process 2360 iaccess32.exe -
Loads dropped DLL 1 IoCs
pid Process 224 regsvr32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\egaccess4_1071.dll iaccess32.exe -
resource yara_rule behavioral2/memory/4328-0-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/files/0x000c000000023b01-3.dat upx behavioral2/memory/2360-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4328-6-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/files/0x000a000000023b6d-27.dat upx behavioral2/memory/224-29-0x0000000010000000-0x0000000010047000-memory.dmp upx behavioral2/memory/2360-63-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 13 IoCs
description ioc Process File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\medias\p2e_1_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\medias\p2e_2_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\medias\p2e_go_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\medias\p2e_3_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\medias\p2e.ico iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\dialerexe.ini iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Multi\20100716020708\dialerexe.ini iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\Common\module.php iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\instant access.exe iaccess32.exe File created C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100716020708\medias\p2e_logo_2.gif iaccess32.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File created C:\Windows\dialexe.zl iaccess32.exe File created C:\Windows\dialexe.epk iaccess32.exe File created C:\Windows\dialerexe.ini iaccess32.exe File created C:\Windows\egdhtm_pack.epk iaccess32.exe File created C:\Windows\iaccess32.exe JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe File created C:\Windows\tmlpcert2007 iaccess32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 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 iaccess32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regedit.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe -
Modifies data under HKEY_USERS 1 IoCs
description ioc Process Key created \REGISTRY\USER\À iaccess32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ = "C:\\Windows\\SysWow64\\egaccess4_1071.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Runs regedit.exe 1 IoCs
pid Process 3056 regedit.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4328 JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe 2360 iaccess32.exe 2360 iaccess32.exe 2360 iaccess32.exe 2360 iaccess32.exe 2360 iaccess32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4328 wrote to memory of 2360 4328 JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe 83 PID 4328 wrote to memory of 2360 4328 JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe 83 PID 4328 wrote to memory of 2360 4328 JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe 83 PID 2360 wrote to memory of 3056 2360 iaccess32.exe 84 PID 2360 wrote to memory of 3056 2360 iaccess32.exe 84 PID 2360 wrote to memory of 3056 2360 iaccess32.exe 84 PID 2360 wrote to memory of 224 2360 iaccess32.exe 85 PID 2360 wrote to memory of 224 2360 iaccess32.exe 85 PID 2360 wrote to memory of 224 2360 iaccess32.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4374bc7c7e064c522ad5b244f7535340.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4328 -
C:\Windows\iaccess32.exeC:\Windows\iaccess32.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Windows\SysWOW64\regedit.exe"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert20073⤵
- Manipulates Digital Signatures
- System Location Discovery: System Language Discovery
- Runs regedit.exe
PID:3056
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C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:224
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv1⤵PID:1128
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD56eb65b9c9389b8319de18d97cbd79fc6
SHA18a9d501185ccb7cab5fce6f030b9319357e444e8
SHA256dfc44f60d647bfd515a8c241b2953dd3b658471b58e16ec113b56afed98252d9
SHA51272a34c60b51525b720f4d78e61288fae277526797a5fe1fa12777e127b42a55db7aa9ff4deeb03fff0edfc37e77f1a73ca198625ad60cf6851791184d536a48f
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Filesize
76KB
MD5b83f652ffa76451ae438954f89c02f62
SHA1b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd
SHA256f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f
SHA512965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83
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Filesize
587B
MD52467b6db517327de4ba8a0549582b19f
SHA1e81a9c551b8da351aa0d5bfeae6ab5b02bf27736
SHA256ccc9290200f64d9035cc1c0cde88e9fdff10ddb3685328a0c3f38d30ab5415ba
SHA51249a732b28e15d99dec418613ca3351f8738f733d7c775ab3184581d40a908711bb5551c625bdfde25afdf1760d860699373d9a935457faac4e0a7c8ca8242cd8
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Filesize
123KB
MD5108c8d631c72039039100658bc5ad599
SHA17a8e5c7118cd28a5b99bf9daa507748eccbb38fd
SHA256eca0505983bb83f0a3b567e23b936600b8ea551584f4d2e73ab4e3080302ba4a
SHA51287e2f9c781b6ae3d5c783b2a2e66ceabcace6d8a57af26bd0623408396e12ecd23caf9aaaa76937fb9d83bb4e998d08e18a9a8e9eae8b9acbf0137ec3b6aa358
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Filesize
6KB
MD5b103757bc3c714123b5efa26ff96a915
SHA1991d6694c71736b59b9486339be44ae5e2b66fef
SHA256eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48
SHA512d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1