Overview
overview
10Static
static
3bf83ae00a8...0N.exe
windows7-x64
10bf83ae00a8...0N.exe
windows10-2004-x64
10$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...os.dll
windows7-x64
3$PLUGINSDI...os.dll
windows10-2004-x64
3$PLUGINSDI...sh.dll
windows7-x64
3$PLUGINSDI...sh.dll
windows10-2004-x64
3$PLUGINSDI...ce.dll
windows7-x64
3$PLUGINSDI...ce.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ry.dll
windows7-x64
3$PLUGINSDI...ry.dll
windows10-2004-x64
3Analysis
- 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
07/09/2024, 00:17
Static task
static1
Behavioral task
behavioral1
Sample
bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/execDos.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/execDos.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/newadvsplash.dll
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/newadvsplash.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/newtextreplace.dll
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/newtextreplace.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/registry.dll
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/registry.dll
Resource
win10v2004-20240802-en
General
- Target bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe
- Size 508KB
- Sample240907-alezxavgkc
- SHA256 29e046f6d0579e2b8781a6ed480d31c26ff6d946f61f3d42d03afa1969be8eb3
- MD5 bf83ae00a8f2aee9f6c59a2a39c52ed0
- SHA1 0ab9d79c8e82a552f33558cf3635ea7d687e4baa
- SHA512 2b7e6899475a7d973c50c3dcae946bfdb3191f8444082b3bdfd4f1370fe1d51e028dd9036f6a399a5c494ef57e52708d2251843643184534644e2562a172bf86
- SSDEEP 6144:zTBUHLpnHwfJsvjLoxRLeciey+fXwBV+UdvrEFp7hKtSzyu:zTBshHmsvjLoxXDTwBjvrEH7MOR
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023453-1.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.
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0009000000023453-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 1768 bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe -
resource yara_rule behavioral2/files/0x0009000000023453-1.dat upx behavioral2/memory/1768-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/1768-16-0x0000000010000000-0x0000000010030000-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: bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe File created \??\c:\program files\common files\system\symsrv.dll.000 bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1768 bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe 1768 bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1768 bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\bf83ae00a8f2aee9f6c59a2a39c52ed0N.exe"C:\Users\Admin\AppData\Local\Temp\bf83ae00a8f2aee9f6c59a2a39c52ed0N.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:1768
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files\Common Files\System\symsrv.dll
- Size 67KB
- SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
- MD5 7574cf2c64f35161ab1292e2f532aabf
- SHA1 14ba3fa927a06224dfe587014299e834def4644f
- SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
- SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
- MD5 SHA1 SHA512 SSDEEP