Analysis
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max time kernel
142s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19-09-2024 14:57
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe
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Size
224KB
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MD5
edfef3e96e70c8e379fce328ac45acbe
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SHA1
e87b7cc4f1987745d21733d4b12dc5c008990d1a
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SHA256
240e72a3a01e9d97e4d63460c9fbfd449c682544e46f3c4aefdad6fd22c1e6bf
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SHA512
6a9672478e74bcf409e851219c26d5f8293a9e4e48504c8fe765a3d837af722782be982ea19730f4f20c2915ab683c067a97586a15304b4e0c2b080f53e775a5
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SSDEEP
6144:ay92zi7ajvRcT2KZH2FaLw9hH4JdBV+UdvrEFp7hKC:ay92zi+jv0Y9hH4JdBjvrEH79
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x000a00000001225c-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000a00000001225c-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2932 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe -
resource yara_rule behavioral1/memory/2932-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/files/0x000a00000001225c-1.dat upx behavioral1/memory/2932-13-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2932-17-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2932-21-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2932-25-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2932-31-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2932-33-0x0000000010000000-0x0000000010030000-memory.dmp upx -
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: 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.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 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2932 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe 2932 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe 2932 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2932 2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-19_edfef3e96e70c8e379fce328ac45acbe_avoslocker_cobalt-strike_floxif.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:2932
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab