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Analysis
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max time kernel
140s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21/08/2024, 15:56
Behavioral task
behavioral1
Sample
b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe
Resource
win7-20240704-en
General
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Target
b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe
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Size
126KB
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MD5
b4179a12d153eca9ea09164b2988683a
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SHA1
cd103243e3706ec5e3f78dd7cb75d7a73c54e2b7
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SHA256
038b38ff61f3a9018c910e24a7c5f1866fd167d52f55a2311c9a4932e5750aff
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SHA512
af97b8432b4bb1ee51543b823feac9d7cf2b894ded55c6a7a1eda8bc9fe5c39c73d8e7a6317e5917ccb53c199040523bfcada5007df2896749655f0fa59dcb24
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SSDEEP
3072:teSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLsMeDLe:tVYrJrOSsRwcpwS
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-1-5-21-4182098368-2521458979-3782681353-1000\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/0x0007000000023480-23.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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation iaccess32.exe -
Executes dropped EXE 1 IoCs
pid Process 2452 iaccess32.exe -
Loads dropped DLL 1 IoCs
pid Process 1316 regsvr32.exe -
resource yara_rule behavioral2/memory/3248-0-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/files/0x000800000002346c-3.dat upx behavioral2/memory/2452-5-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3248-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/files/0x0007000000023480-23.dat upx behavioral2/memory/1316-25-0x0000000010000000-0x0000000010047000-memory.dmp upx behavioral2/memory/2452-53-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\egaccess4_1071.dll iaccess32.exe -
Drops file in Program Files directory 9 IoCs
description ioc Process File created C:\Program Files (x86)\Instant Access\Multi\20110112100129\dialerexe.ini iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Multi\20110112100129\dialerexe.ini iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110112100129\instant access.exe iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110112100129\medias\dialer.ico iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110112100129\js\js_api_dialer.php 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 opened for modification C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20110112100129\Common\module.php iaccess32.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File created C:\Windows\tmlpcert2007 iaccess32.exe 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 b4179a12d153eca9ea09164b2988683a_JaffaCakes118.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 regedit.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iaccess32.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 5004 regedit.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3248 b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe 2452 iaccess32.exe 2452 iaccess32.exe 2452 iaccess32.exe 2452 iaccess32.exe 2452 iaccess32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3248 wrote to memory of 2452 3248 b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe 84 PID 3248 wrote to memory of 2452 3248 b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe 84 PID 3248 wrote to memory of 2452 3248 b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe 84 PID 2452 wrote to memory of 5004 2452 iaccess32.exe 86 PID 2452 wrote to memory of 5004 2452 iaccess32.exe 86 PID 2452 wrote to memory of 5004 2452 iaccess32.exe 86 PID 2452 wrote to memory of 1316 2452 iaccess32.exe 87 PID 2452 wrote to memory of 1316 2452 iaccess32.exe 87 PID 2452 wrote to memory of 1316 2452 iaccess32.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3248 -
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:2452 -
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:5004
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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:1316
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv1⤵PID:640
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
616B
MD517f3ce71f1adb02e9ee92904343da577
SHA1f6cc7ecaf27a5a0bf185c87daa8b3b461c587a03
SHA25644afbdbabae57c08744bbd7bae914bb06248991f99fc6618a6f3ae44acc93714
SHA51295fdfda0928309c7184c36ed06927a2b851fa16411da0f02eccb493a80bfe041836988c3ae7af1380f5fb04c943e65058e5161e0eaf2426501d18ee34961b1f0
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Filesize
2KB
MD5c869cbe458069098fe90ba0144d46ff7
SHA12b5e9125ade144718effd5dde623a6c15dba8d6d
SHA2565a439a0c9b03602ece65aa712eb207ec58b6bf7fa869deca6bb3e0af34790752
SHA5123c4d4acc3bf8190bf3722874dcb3e45b28fb5b2450c2620a83e9f2a198677380392547b729642164a3e21accdd49ce889ada214bf4d0c6c6cfd292362648474f
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Filesize
2KB
MD54d114d3333b257f43a02d7d2c2f47ec4
SHA12e287c67880be2689e24919873ce8c7a2feb4427
SHA25626def2bef4cc0acbfcaaf04c1cd922937c51ad20b42f32511b5efb24a4504f39
SHA5121b484a5d9f1a17fa6fd9b35e394d89b2ffb43ea676ed8e805bcad086b0cd57e5a0937bbd302e75eb9fe227005354a186dac550ae7dd6ecedf802b4a3587b5a4e
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Filesize
76KB
MD5b83f652ffa76451ae438954f89c02f62
SHA1b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd
SHA256f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f
SHA512965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83
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Filesize
126KB
MD5f689487b9bfe149e9819c027940e5ecf
SHA1ad4aa886fba5dfa2558882edcadcc864a673be5d
SHA2564aed6f73622cb0721388fa6affb9443d36f552d02a8fd2d5a82f13bb0460dd55
SHA5128b040d06b9153f1768091944b881010893d6188ccbf6aaae03206fd365fc1926fda169243f98a9c179bc604a614bc7c5291bd0015a74753d2c7ec2c049614a6e
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Filesize
6KB
MD5b103757bc3c714123b5efa26ff96a915
SHA1991d6694c71736b59b9486339be44ae5e2b66fef
SHA256eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48
SHA512d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1