Analysis
-
max time kernel
94s -
max time network
98s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
14-09-2024 00:27
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe
Resource
win7-20240903-en
General
-
Target
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe
-
Size
665KB
-
MD5
748da875840f2e2c2690b830edfd7397
-
SHA1
fe0309b4cebb5ce6284e6a9a0bab1d4bc0032e56
-
SHA256
8c84110b6de408ddc9d9e1b13bfb487543a75d8b4423581652bbfb85ed87acd5
-
SHA512
ffdcca7cd4590d5456ab869d5e3533a4f073bce683bb9a23c8d23aaef3ee37eb3ae0e99a169dc1ae8960bbc5ed16f0c011a9b1222a25a6b4f07daa6cde546a01
-
SSDEEP
12288:XubXcIpafJcLln5QwnVWqqPIBONhxsU/EbBjvrEH78x:Xurj90r/xsU/EhrEH7c
Malware Config
Signatures
-
Detects Floxif payload 1 IoCs
Processes:
resource yara_rule behavioral2/files/0x00090000000234b1-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
Processes:
resource yara_rule behavioral2/files/0x00090000000234b1-1.dat acprotect -
Loads dropped DLL 1 IoCs
Processes:
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exepid Process 3644 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe -
Processes:
resource yara_rule behavioral2/files/0x00090000000234b1-1.dat upx behavioral2/memory/3644-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/3644-65-0x0000000010000000-0x0000000010030000-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.
Processes:
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exedescription ioc Process File opened (read-only) \??\e: 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe -
Drops file in Program Files directory 2 IoCs
Processes:
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exedescription ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-14_748da875840f2e2c2690b830edfd7397_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.
Processes:
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exepid Process 3644 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe 3644 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exedescription pid Process Token: SeDebugPrivilege 3644 2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-09-14_748da875840f2e2c2690b830edfd7397_avoslocker_cobalt-strike_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-14_748da875840f2e2c2690b830edfd7397_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:3644
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
-
Filesize
1KB
MD534016f993a003bcbd6a1fb09565b0e3f
SHA1ae8ba1021f7676655a59a92ed9f8de6766177229
SHA256bc751beb9503d34f9b4731d3a611003f113176055efe2c71b7ba88b606ed0cb6
SHA512d0c11d2206cf38fb97eac993a427dc609ed8bb0eccfabb03e72334d547e506e47981e036e18c43ac155a51609d2947499841fae431a0e6fd960b1b6c2dc80f92
-
Filesize
6KB
MD503266ed90753df0548ed588e4332a781
SHA11105ad4627bf6a21cc08c692edf0e1e6b85c55a8
SHA2565cfd80aec5183eb4ee462ed0d0c0e4609cd798a3a1549b594822bebc662dcd51
SHA512e94be3ee9ddc6d5534b62643d5a8de689764ab578205bb6818250650534790e246c6de6ba22b5dc503743736d03b05b49d9108fd0633a496278393e0bb0df3af