Analysis
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max time kernel
81s -
max time network
169s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
31-03-2023 19:08
Static task
static1
Behavioral task
behavioral1
Sample
Adobe Flash 31 Windows/flashplayer31_0r0_153_win.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Adobe Flash 31 Windows/flashplayer31_0r0_153_win.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
Adobe Flash 31 Windows/flashplayer31_0r0_153_winax.exe
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
Adobe Flash 31 Windows/flashplayer31_0r0_153_winax.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
Adobe Flash 31 Windows/flashplayer31_0r0_153_winpep.exe
Resource
win7-20230220-en
General
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Target
Adobe Flash 31 Windows/flashplayer31_0r0_153_winpep.exe
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Size
20.1MB
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MD5
76f9255715efdbfb829bd0e22bc3406a
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SHA1
321eb7717526ac36b0e5fc234a9284405af5b004
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SHA256
378e7459c409fdba0c9a2ee4afc059ef03981fd857e4fb9028b95bef7c206dab
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SHA512
674c9b7134ddfd5b114c72723511d2421de73d13c6bd301a0f4a7dfc5a8a37ac5486cc066a73168d30f5bb4557d794792db93f75dcb4b2797f01306f9b65dc10
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SSDEEP
393216:bo0VBwUn2kZ7P/7Eu2vPsHz5BomtJZh4eh:80MzkZDzEuak5BNlp
Malware Config
Signatures
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Loads dropped DLL 2 IoCs
Processes:
flashplayer31_0r0_153_winpep.exepid process 2008 flashplayer31_0r0_153_winpep.exe 2008 flashplayer31_0r0_153_winpep.exe -
Processes:
flashplayer31_0r0_153_winpep.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA flashplayer31_0r0_153_winpep.exe -
Drops file in System32 directory 2 IoCs
Processes:
flashplayer31_0r0_153_winpep.exedescription ioc process File created C:\Windows\SysWOW64\Macromed\Temp\{FA7E7A17-A29C-4E77-B7B5-5D7B106FE071}\fpb.tmp flashplayer31_0r0_153_winpep.exe File created C:\Windows\SysWOW64\Macromed\Temp\{835E30A9-1623-41F6-B933-EB891EE46C59}\fpb.tmp flashplayer31_0r0_153_winpep.exe -
Processes:
flashplayer31_0r0_153_winpep.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 flashplayer31_0r0_153_winpep.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 flashplayer31_0r0_153_winpep.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
flashplayer31_0r0_153_winpep.exepid process 2008 flashplayer31_0r0_153_winpep.exe 2008 flashplayer31_0r0_153_winpep.exe 2008 flashplayer31_0r0_153_winpep.exe 2008 flashplayer31_0r0_153_winpep.exe 2008 flashplayer31_0r0_153_winpep.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
flashplayer31_0r0_153_winpep.exepid process 2008 flashplayer31_0r0_153_winpep.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Adobe Flash 31 Windows\flashplayer31_0r0_153_winpep.exe"C:\Users\Admin\AppData\Local\Temp\Adobe Flash 31 Windows\flashplayer31_0r0_153_winpep.exe"1⤵
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\Windows\SysWOW64\Macromed\Temp\{835E30A9-1623-41F6-B933-EB891EE46C59}\fpb.tmpFilesize
577KB
MD5bb013a71fae47bc5a10cade4bd1594aa
SHA1a39267a670c4bd06110b67246a64e5b8e2b94a3a
SHA256cdd9e30cf67aed28e98377b32e9e5cb576cae62d242ec702fdbbd55a608c28cf
SHA51255e3cc16dc34ac27985648c26526ead365d582287af56810859a98e3d8c13bdd505eb6a94855a19a232cda29de0ef65d6e9c0299a793512f6b9e27ffc8a0a7c6
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\Windows\SysWOW64\Macromed\Temp\{FA7E7A17-A29C-4E77-B7B5-5D7B106FE071}\fpb.tmpFilesize
1.4MB
MD5a3179983f08f56ee59690fa91a89762d
SHA17013c2f529e571e3a22ce1c8c87def09151b0fc5
SHA256b159c6418c990229fa4a3edde46584457a726fa2d49961fb38e4cafc8bd1db9c
SHA512548894b435ae3f097a319f59c688945e9d82ab22ecddfd22a7295600eae99caf2e91f9d71f51861b14d7843f29f6a8e06e1a474ab80d97661815decc8312b5a8