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Analysis
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max time kernel
146s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
30/09/2024, 10:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe
Resource
win7-20240903-en
General
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Target
2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe
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Size
3.4MB
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MD5
bc64976c095fb66a8b7ff82692d46d11
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SHA1
d6beb324e6f6058dd4b3902cd907191ce991bfdf
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SHA256
2c3d48205a200f13cec47f2b9873f24f07bd41f8884b6713d61d150aa291ad5d
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SHA512
61eb7f3fab9bac87e2fc0fa9b045cfe58000bc3798b6c663542766d4fd0185ec174c0caaa0b57a4fe9a9bef7cadd53a50b40beabb86630f7b5f00e8965c95828
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SSDEEP
49152:iZi5Wu7I/Bzfz/ZHg1pHtOUYqP3CFOrtG/RR9sXafgkDFMVR9C1UhPJXMK701hOq:iI5Wt/BzfzW1t0xOouBiCV2Hp
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023456-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0008000000023456-1.dat acprotect -
Loads dropped DLL 4 IoCs
pid Process 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\e: 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe -
resource yara_rule behavioral2/memory/2752-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/files/0x0008000000023456-1.dat upx behavioral2/memory/2752-42-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/2752-48-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/2752-54-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/2752-66-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe -
Suspicious behavior: EnumeratesProcesses 13 IoCs
pid Process 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe Token: SeDebugPrivilege 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe Token: SeShutdownPrivilege 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe Token: SeCreatePagefilePrivilege 2752 2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-30_bc64976c095fb66a8b7ff82692d46d11_bkransomware_floxif_hijackloader.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2752
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0
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Filesize
67KB
MD57d5d3e2fcfa5ff53f5ae075ed4327b18
SHA13905104d8f7ba88b3b34f4997f3948b3183953f6
SHA256e1fb95609f2757ce74cb531a5cf59674e411ea0a262b758371d7236c191910c4
SHA512e67683331bb32ea4b2c38405be7f516db6935f883a1e4ae02a1700f5f36462c31b593e07c6fe06d8c0cb1c20c9f40a507c9eae245667c89f989e32765a89f589