Analysis
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max time kernel
131s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
20/09/2023, 06:55
Static task
static1
Behavioral task
behavioral1
Sample
FabFilter_KeyGen.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
FabFilter_KeyGen.exe
Resource
win10-20230915-en
Behavioral task
behavioral3
Sample
FabFilter_KeyGen.exe
Resource
win10v2004-20230915-en
General
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Target
FabFilter_KeyGen.exe
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Size
754KB
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MD5
e65aadf62d68a0c553e8d03f83b1ffa3
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SHA1
7d02ba4357dda1360b1b3682cd544450888b6b8c
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SHA256
b7d055d0c041ff3815b649fd766b92e90d566fc52069f40cf7f9f08abc326cb5
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SHA512
5c2074e302b8730ee28f565603b876ab9f27d87975f52c60f7863a9820a2efc0af2401b802c15ec5997a4f1e8c48fab97c9e7d3e3d451d4abf97d542975e6948
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SSDEEP
12288:4c9t2Sllu12Cd0coupii4Ueb1EDrz7e4pmYJktpwjAS2VtEnrEoqJtk:4cLY3X0i4Ueb1qz7e7txS2VtEnrE6
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2272 keygen.exe -
Loads dropped DLL 7 IoCs
pid Process 2196 FabFilter_KeyGen.exe 2196 FabFilter_KeyGen.exe 2272 keygen.exe 2272 keygen.exe 2272 keygen.exe 2272 keygen.exe 2272 keygen.exe -
resource yara_rule behavioral1/files/0x00070000000167ef-10.dat upx behavioral1/files/0x00070000000167ef-7.dat upx behavioral1/files/0x00070000000167ef-11.dat upx behavioral1/files/0x00070000000167ef-16.dat upx behavioral1/files/0x00070000000167ef-15.dat upx behavioral1/files/0x00070000000167ef-14.dat upx behavioral1/files/0x00070000000167ef-13.dat upx behavioral1/memory/2272-12-0x0000000000400000-0x000000000043C000-memory.dmp upx behavioral1/memory/2196-6-0x0000000002CF0000-0x0000000002D2C000-memory.dmp upx behavioral1/files/0x00070000000167ef-4.dat upx behavioral1/memory/2272-26-0x0000000000400000-0x000000000043C000-memory.dmp upx behavioral1/memory/2272-28-0x0000000000400000-0x000000000043C000-memory.dmp upx behavioral1/memory/2272-32-0x0000000000400000-0x000000000043C000-memory.dmp upx -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification \??\c:\windows\installer\{ac76ba86-7ad7-1033-7b44-a90000000001}\pdffile_8.ico keygen.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 31 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_Classes\Local Settings keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0" keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9} keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC} keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\LogicalViewMode = "1" keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\IconSize = "16" keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000 keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 keygen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}" keygen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}" keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\FFlags = "1092616257" keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\FFlags = "1" keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\Sort = 000000000000000000000000000000000200000030f125b7ef471a10a5f102608c9eebac0a0000000100000030f125b7ef471a10a5f102608c9eebac0e000000ffffffff keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff keygen.exe Set value (int) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\Mode = "4" keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg keygen.exe Key created \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff keygen.exe Set value (data) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000 keygen.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2272 keygen.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2272 keygen.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28 PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28 PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28 PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28 PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28 PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28 PID 2196 wrote to memory of 2272 2196 FabFilter_KeyGen.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\FabFilter_KeyGen.exe"C:\Users\Admin\AppData\Local\Temp\FabFilter_KeyGen.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Users\Admin\AppData\Local\Temp\keygen.exeC:\Users\Admin\AppData\Local\Temp\keygen.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2272
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
33KB
MD5e4ec57e8508c5c4040383ebe6d367928
SHA1b22bcce36d9fdeae8ab7a7ecc0b01c8176648d06
SHA2568ad9e47693e292f381da42ddc13724a3063040e51c26f4ca8e1f8e2f1ddd547f
SHA51277d5cf66caf06e192e668fae2b2594e60a498e8e0ccef5b09b9710721a4cdb0c852d00c446fd32c5b5c85e739de2e73cb1f1f6044879fe7d237341bbb6f27822
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Filesize
233KB
MD5098c88aa084267d7e53b3fa4093e20cb
SHA1ef0e6f63c79da0f144431deb972068fbe0e223e7
SHA256638193931a8e47a7a3e595efd25e410aca85de03ebf38b0cd730bcba7e6ee78d
SHA51264512a98987d4a942979c1686ccfd537e1130d656779dba1fd432e55c1e9ec49d811b958f47bd347e9f01b030c87c91b70de3a8124ead3b87598ec2b49451731
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Filesize
80KB
MD55e3c083251880c635f5ea6a0a6ed8e76
SHA1e7fb44133e223140057243493159bdce01c5f080
SHA2569d460a48d7f7f461967c9065182456871606eef1c27f21767335b7d81384e141
SHA512b4a6a5ad71a13f51989e1fccedb542ab528f6ab9bc3d60a4c93c59e544b8eaa06ca7b9fe79c1d9a5c92b61345c18e38736561cd21426bc9e43ae3a4c59424284
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
-
Filesize
33KB
MD5e4ec57e8508c5c4040383ebe6d367928
SHA1b22bcce36d9fdeae8ab7a7ecc0b01c8176648d06
SHA2568ad9e47693e292f381da42ddc13724a3063040e51c26f4ca8e1f8e2f1ddd547f
SHA51277d5cf66caf06e192e668fae2b2594e60a498e8e0ccef5b09b9710721a4cdb0c852d00c446fd32c5b5c85e739de2e73cb1f1f6044879fe7d237341bbb6f27822
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Filesize
233KB
MD5098c88aa084267d7e53b3fa4093e20cb
SHA1ef0e6f63c79da0f144431deb972068fbe0e223e7
SHA256638193931a8e47a7a3e595efd25e410aca85de03ebf38b0cd730bcba7e6ee78d
SHA51264512a98987d4a942979c1686ccfd537e1130d656779dba1fd432e55c1e9ec49d811b958f47bd347e9f01b030c87c91b70de3a8124ead3b87598ec2b49451731
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0
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Filesize
293KB
MD5a655d4207e5b42e0b0eeb875797bce38
SHA14d9a325ca6935eb8bdf11587633c6024c4bc9b01
SHA2560af1b4444133af5b5e5ccfb6c3fdfa2ecd5a08cf138e1dd6507b1fc98a568546
SHA51276df239f0a0573fb75a2624b32061b85ee3cccb44a7d8e5bec5da5acdf51cd8045654eaf0b1d694041397fcefc76666d090f51eb859a4fff880fb0910e33e3a0