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Analysis
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max time kernel
143s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
05/04/2024, 02:16
Static task
static1
Behavioral task
behavioral1
Sample
c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe
Resource
win10v2004-20240226-en
General
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Target
c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe
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Size
64KB
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MD5
c8166b3dcb9ca45300ca5f4a723b9358
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SHA1
5c35089685ac5b5e8373ab3e26f5540f378e559c
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SHA256
09e7779f5a97fe24365c3f2110b80a3a19af8ab8d7d2016ac3fdb5bd6314828d
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SHA512
1603c1f707bf9f98943fbc3a585d7620ad5a7e7f8e7fe8768749b21839fbc151993e37682dd74b650269a7e81a9920bec1f103e4035417dcdcad05ace74cc59e
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SSDEEP
1536:JMhh3AQR7cyKrstZp1htYeK3N0pdbh4voasnth5:JMfKOptYR3NCdbh4voasn5
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3476 outlook.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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\System = "C:\\Windows\\sys32.exe" c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File created C:\Windows\sys32.exe c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe File created C:\Windows\outlook.exe c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe File opened for modification C:\Windows\outlook.exe c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe File opened for modification C:\Windows\sys32.exe c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe File opened for modification C:\Windows\outlook.cfg outlook.exe File created C:\Windows\crc32.cfg outlook.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4404 3476 WerFault.exe 95 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2824 wrote to memory of 3476 2824 c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe 95 PID 2824 wrote to memory of 3476 2824 c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe 95 PID 2824 wrote to memory of 3476 2824 c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Windows\outlook.exeC:\Windows\outlook.exe2⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3476 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 298803⤵
- Program crash
PID:4404
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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=3776 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:81⤵PID:2324
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3476 -ip 34761⤵PID:3244
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5e0032d780dbe33f09e7f6a38c1eae4d7
SHA17a7f749e028527082c22bae2c48a945425b7250b
SHA2565c8ae3629b4247167d221699f7f674f600299979f431fa66d3632f9e584e2bb1
SHA5122a4eb80f8ef257935ee4f597ef2f32ab82d7bb35904cceea34a06a6c9dd2a3cd04240eefab470853ffa6ef710bde631ca6e5f03af7f1234d07f0f170e0a45dda
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Filesize
753B
MD5d33299d1ca190583b407efafafc9010e
SHA1951ec5fcb2fc42b7f0cb734e3125e1962f6dd70c
SHA256379652c6c163bbec50bee1d96e2ae1bd0f017741a94f746a74435389f01b9b9b
SHA5123fc3720d7d3f28de7e63c9a81deed1369f17a1436f3cff40578543da6e940da90a20dc7c951c39c2404a73d85c7ddfe623b1e91fa42c40413134125427b3e504
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Filesize
1KB
MD57eedd08ae4bb030faae3650130328321
SHA13257c3d2e018dd23434b48e3c0767b3e179e25ff
SHA256139ffc13f5821ce54b8df2d099e279ebeca14ab73c4ce2438082319645067bc6
SHA5122ca7fab65db2486275c680a6af6e450b6b084a558ba048c6d0966846fc14e6a1878613034474991130bc74ae0d41eea3b5cbf4aecb2a278739a5971d513d6117
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Filesize
1KB
MD5b577a9e200605035fb3f92a156cd7312
SHA16a0f2b9d55a2b97cbdf6ea8842d4fdc1559131a1
SHA25616385d1223698daa43548de5cc64b3c233016f622b7debac1445356c82da3269
SHA51245c23bb9ca11b3e2f091b93ad69992a575462bf720a406ee1f7634643ee87bae991bfe0e5b37937a06407b912eef859e93300a87f52ebfff1e70ebf4a774d066
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Filesize
49KB
MD50e9379e357aba95f8b9883af9b67675e
SHA1280a174a414e5b8588f42b6328af2c8c8ff4394f
SHA25696b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28
SHA5126cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784