Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-12-2024 16:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe
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Size
665KB
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MD5
d61a4f7e4e8729fac8d185d52e8c5688
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SHA1
e9f138d4b27f86c6c112e326357050aaee258304
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SHA256
9f15590e60d0b1622462c9e540c56a88c0836b4e792230c6b7d1de031f73dbf6
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SHA512
9043be8918f3cf107d4b33c53b6e9640c05eff5fde340848088cec0509195dae86db662a112337c66c6f37bf761a56e0c18ebe514498bd5d503a37bfc59d3728
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SSDEEP
12288:XubXFrBafJcLln5QwnVWqqPIBONhxsU/EbBjvrEH72:XurT90r/xsU/EhrEH72
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000c000000023aed-1.dat floxif -
Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000c000000023aed-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 4208 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe -
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: 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe -
resource yara_rule behavioral2/files/0x000c000000023aed-1.dat upx behavioral2/memory/4208-2-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4208-63-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.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 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4208 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe 4208 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4208 2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.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:4208
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
5KB
MD57ac5ee6427b76743fd3a273d62e08c26
SHA1035b36f7ca2c4a98cadfa3a5a23e1aa21bfc4bed
SHA256e83993a4d33259965fd04112f281e83357f859e3959150a070ad64ce20d15d56
SHA512b42ac47ba79080e41ac1b7986a8e01a8d72158b5225e40a4762e4141c85a928407b4d290542d5108da034225eb5a5e0d46a11fd70cb6061960ca1c51bf586e54