Analysis
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max time kernel
122s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-09-2024 00:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe
Resource
win7-20240903-en
General
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Target
2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe
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Size
665KB
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MD5
504f6b94159653a22d8ca825867d34ac
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SHA1
ea4f87db84f392e85b56b1dc9cf284a5f4194de0
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SHA256
c752543b00c8e06ef4226e0867ba9614d8ea7496b344e5d81d3fcf99b1b80568
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SHA512
0f272fc1fe4544fc3a4f3e182c25d0418f073a7cfd26eda10b28c997417756b12b791e23a8ab9fc6437b43047a2ee58a98d28dcb86219e222164fa9fd9e03786
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SSDEEP
12288:XubKAwafJcLln5QwnVWqqPIBONhxsU/EbBjvrEH73m+Y:XuO90r/xsU/EhrEH73m+Y
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x000a000000012233-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000a000000012233-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 468 2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe -
resource yara_rule behavioral1/files/0x000a000000012233-1.dat upx behavioral1/memory/468-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/468-63-0x0000000010000000-0x0000000010030000-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: 2024-09-16_504f6b94159653a22d8ca825867d34ac_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 2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-16_504f6b94159653a22d8ca825867d34ac_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 2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 468 2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 468 2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-16_504f6b94159653a22d8ca825867d34ac_avoslocker_cobalt-strike_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-16_504f6b94159653a22d8ca825867d34ac_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:468
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5de3ef7d4d86df5118a8bd8e82430ce5c
SHA124bc48bd10d0b697419a5821ae67a4121d7c5971
SHA256b23fa92dd0fde867503be24bf0880eb048d65244ccd4597d7ae4263f1cfbe301
SHA512f064cacb9a7beee72320a8c2ca49f3b1c0c4306e54532d463e628e84339bd8542819c22f0388ecbce3249c4f6a11af9ab6db631080bfb03a70b49bf7f41f4f1d
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Filesize
6KB
MD5f8fbb85cb6ee150e52b379e74708b613
SHA19aac20be8545d8a96a366e0b7c218cbbf9e92416
SHA2564a097e388d2d426fbb7b91d57236d3dd3ff79252e0e93fc28fbe496fc923aa43
SHA512fc229ae35a5883dd752e5b41f48679162778879c093d38a413435d47ad825bd2bf3041472c6ac71daf9e33e3087fd95a74a959ac6764e6d1d665f1f53661233e
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab