Analysis
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max time kernel
90s -
max time network
97s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-12-2024 14:56
Static task
static1
Behavioral task
behavioral1
Sample
burppack3-2024.rar
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
Read-me.txt
Resource
win11-20241007-en
General
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Target
burppack3-2024.rar
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Size
208.5MB
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MD5
e46b7a7c74936da5eeaccc0673bc3a48
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SHA1
8121ce377b5c55f198b3cafa4f9e7ad75ee187d1
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SHA256
fe894016f94b60553d9138137f52578c6433fd74a73ad89ab8b44557fc0c3325
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SHA512
1c2690620c5427420ce7e0f48c67082d513a19695a185dbfbc4b165bb36f4f3132e63c336c562c01889a349df3d9c11bbb0306856ea1365a93d14cf50334c51a
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SSDEEP
6291456:UqR1PHJG2ESQZlZ0GZSAaXnHLvWYhF9uFemAuWqIVxjZW3w:UYJpnOZlZ0GZSAaXnHBuAmAIIHZww
Malware Config
Signatures
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Modifies registry class 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" BackgroundTransferHost.exe Key created \REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000_Classes\Local Settings\MuiCache BackgroundTransferHost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4436 7zFM.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 4436 7zFM.exe Token: 35 4436 7zFM.exe Token: SeSecurityPrivilege 4436 7zFM.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4436 7zFM.exe 4436 7zFM.exe
Processes
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C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\burppack3-2024.rar"1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4436
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.131⤵
- Modifies registry class
PID:436
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:5324
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\1a3c8e36-19d9-4c77-8772-6866e889cd73.down_data
Filesize555KB
MD55683c0028832cae4ef93ca39c8ac5029
SHA1248755e4e1db552e0b6f8651b04ca6d1b31a86fb
SHA256855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e
SHA512aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3