Overview
overview
10Static
static
3c113d33c05...0N.exe
windows7-x64
10c113d33c05...0N.exe
windows10-2004-x64
10$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDIR/UAC.dll
windows7-x64
3$PLUGINSDIR/UAC.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
119s - max time network
120s - platform
windows7_x64 - resource
win7-20240705-en - resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system - submitted
01/09/2024, 05:52
Static task
static1
Behavioral task
behavioral1
Sample
c113d33c057164e295b3c3b2f9caf1b0N.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
c113d33c057164e295b3c3b2f9caf1b0N.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240705-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/UAC.dll
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/UAC.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/execDos.dll
Resource
win7-20240704-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/execDos.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/newadvsplash.dll
Resource
win7-20240705-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/newadvsplash.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/newtextreplace.dll
Resource
win7-20240705-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/newtextreplace.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240729-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/registry.dll
Resource
win7-20240704-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/registry.dll
Resource
win10v2004-20240802-en
General
- Target c113d33c057164e295b3c3b2f9caf1b0N.exe
- Size 595KB
- Sample240901-gk5mhatamn
- SHA256 aa3874dd640b90e924c5d8f7c92fa932714e436e688611a4d2e634f58122f918
- MD5 c113d33c057164e295b3c3b2f9caf1b0
- SHA1 643099c58be534bc24da2a7d035f13f25146726a
- SHA512 3132f37cf11d087057f9b652a986ae040009f37d6e6680c2798391b0904e4ff950ecde4da142d8f895e0b5fe827424ce1ae55116ade1018fc7e3c0d1be26db0e
- SSDEEP 12288:QUEtwm9mYUzxXMOf4fBHMQTBjvrEH7qnk:jywNxDfaMQJrEH7Uk
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x00090000000120fa-1.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x00090000000120fa-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 2624 c113d33c057164e295b3c3b2f9caf1b0N.exe -
resource yara_rule behavioral1/files/0x00090000000120fa-1.dat upx behavioral1/memory/2624-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2624-7-0x0000000010000000-0x0000000010030000-memory.dmp upx - Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll c113d33c057164e295b3c3b2f9caf1b0N.exe - Program crash 1 IoCs
pid pid_target Process procid_target 2776 2624 WerFault.exe 29 - 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 c113d33c057164e295b3c3b2f9caf1b0N.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2624 c113d33c057164e295b3c3b2f9caf1b0N.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2624 wrote to memory of 2776 2624 c113d33c057164e295b3c3b2f9caf1b0N.exe 30 PID 2624 wrote to memory of 2776 2624 c113d33c057164e295b3c3b2f9caf1b0N.exe 30 PID 2624 wrote to memory of 2776 2624 c113d33c057164e295b3c3b2f9caf1b0N.exe 30 PID 2624 wrote to memory of 2776 2624 c113d33c057164e295b3c3b2f9caf1b0N.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\c113d33c057164e295b3c3b2f9caf1b0N.exe"C:\Users\Admin\AppData\Local\Temp\c113d33c057164e295b3c3b2f9caf1b0N.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 2642⤵
- Program crash
PID:2776
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path \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