Overview
overview
7Static
static
3virussign.exe
windows7-x64
1virussign.exe
windows10-2004-x64
3virussign.exe
windows7-x64
7virussign.exe
windows10-2004-x64
7$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ll.dll
windows7-x64
3$PLUGINSDI...ll.dll
windows10-2004-x64
3virussign.exe
windows7-x64
7virussign.exe
windows10-2004-x64
7$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3virussign.exe
windows7-x64
4virussign.exe
windows10-2004-x64
4virussign.exe
windows7-x64
1virussign.exe
windows10-2004-x64
3virussign.exe
windows7-x64
3virussign.exe
windows10-2004-x64
3virussign.dll
windows7-x64
3virussign.dll
windows10-2004-x64
3virussign.dll
windows7-x64
3virussign.dll
windows10-2004-x64
3virussign.dll
windows7-x64
3virussign.dll
windows10-2004-x64
3virussign.exe
windows7-x64
3virussign.exe
windows10-2004-x64
3virussign.dll
windows7-x64
3virussign.dll
windows10-2004-x64
3virussign.dll
windows7-x64
3virussign.dll
windows10-2004-x64
3virussign.exe
windows7-x64
1virussign.exe
windows10-2004-x64
3Analysis
-
max time kernel
143s -
max time network
129s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24/08/2024, 01:46
Static task
static1
Behavioral task
behavioral1
Sample
virussign.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
virussign.exe
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240705-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/ProcDll.dll
Resource
win7-20240704-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/ProcDll.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
virussign.exe
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240708-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
virussign.exe
Resource
win7-20240705-en
Behavioral task
behavioral14
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
virussign.exe
Resource
win7-20240708-en
Behavioral task
behavioral16
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
virussign.exe
Resource
win7-20240708-en
Behavioral task
behavioral18
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
virussign.dll
Resource
win7-20240704-en
Behavioral task
behavioral20
Sample
virussign.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
virussign.dll
Resource
win7-20240704-en
Behavioral task
behavioral22
Sample
virussign.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
virussign.dll
Resource
win7-20240708-en
Behavioral task
behavioral24
Sample
virussign.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
virussign.exe
Resource
win7-20240705-en
Behavioral task
behavioral26
Sample
virussign.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
virussign.dll
Resource
win7-20240729-en
Behavioral task
behavioral28
Sample
virussign.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
virussign.dll
Resource
win7-20240708-en
Behavioral task
behavioral30
Sample
virussign.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
virussign.exe
Resource
win7-20240705-en
Behavioral task
behavioral32
Sample
virussign.exe
Resource
win10v2004-20240802-en
General
-
Target
virussign.exe
-
Size
133KB
-
MD5
7da884a3a469e63668849916c1099053
-
SHA1
13860d53a579f76427545e60eab870923065ec7f
-
SHA256
13cde81b212acc3314cf406e8b22bf641e7fde481365f982ebeac3bd8094c26e
-
SHA512
25a15d85cd8cb7ab96a6433a46bcf5e4e9388055290a730878b84a01b71d3a3167ac7f7f745942e1d729db87ea4d66a4b76f7cd3d6999bc2433c47272155824f
-
SSDEEP
3072:lRnLy8MWmJiv1inJRqxlffsSFNJz9SuaKC8Dr:lpZ9OJRyf/HIKC8n
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 5108 Au_.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 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 virussign.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Au_.exe -
NSIS installer 1 IoCs
resource yara_rule behavioral10/files/0x00070000000234c6-4.dat nsis_installer_1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 404 wrote to memory of 5108 404 virussign.exe 84 PID 404 wrote to memory of 5108 404 virussign.exe 84 PID 404 wrote to memory of 5108 404 virussign.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\virussign.exe"C:\Users\Admin\AppData\Local\Temp\virussign.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe"C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5108
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
133KB
MD57da884a3a469e63668849916c1099053
SHA113860d53a579f76427545e60eab870923065ec7f
SHA25613cde81b212acc3314cf406e8b22bf641e7fde481365f982ebeac3bd8094c26e
SHA51225a15d85cd8cb7ab96a6433a46bcf5e4e9388055290a730878b84a01b71d3a3167ac7f7f745942e1d729db87ea4d66a4b76f7cd3d6999bc2433c47272155824f