Overview
overview
7Static
static
78fecd0dd91...26.exe
windows7-x64
78fecd0dd91...26.exe
windows10-2004-x64
7$PLUGINSDI...ig.dll
windows7-x64
3$PLUGINSDI...ig.dll
windows10-2004-x64
3$PLUGINSDI...dl.dll
windows7-x64
3$PLUGINSDI...dl.dll
windows10-2004-x64
3$PLUGINSDI...el.dll
windows7-x64
7$PLUGINSDI...el.dll
windows10-2004-x64
7$PLUGINSDIR/UAC.dll
windows7-x64
3$PLUGINSDIR/UAC.dll
windows10-2004-x64
3$PLUGINSDI...ss.dll
windows7-x64
3$PLUGINSDI...ss.dll
windows10-2004-x64
3FineTop.dll
windows7-x64
6FineTop.dll
windows10-2004-x64
6FineTop.exe
windows7-x64
6FineTop.exe
windows10-2004-x64
6adc.dll
windows7-x64
1adc.dll
windows10-2004-x64
1Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/02/2024, 19:08
Behavioral task
behavioral1
Sample
8fecd0dd91d9d0811d67e18db275c126.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
8fecd0dd91d9d0811d67e18db275c126.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/IpConfig.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/IpConfig.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/SelfDel.dll
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/SelfDel.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/UAC.dll
Resource
win7-20231129-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/UAC.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral13
Sample
FineTop.dll
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
FineTop.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
FineTop.exe
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
FineTop.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
adc.dll
Resource
win7-20231215-en
Behavioral task
behavioral18
Sample
adc.dll
Resource
win10v2004-20231222-en
General
-
Target
FineTop.exe
-
Size
42KB
-
MD5
61c81941b91b1d502971bd42a29806a1
-
SHA1
72ee7b2fb665f01415a00267cbc1a5d385d1f0cf
-
SHA256
6e0d4e65b147d69b249c40c1f9cc5ea82ae3179777bd25462eef3449d3bbbdb8
-
SHA512
0583df8495ed3c252713bfa2b0b38b9a2aac8ce22ed5e50e42cf5a7d94e903e605614a5ab507a0b10497f434759c945eec7ae1f124f530fe3d488f4ec661de7f
-
SSDEEP
384:kVhtux58TuX+ON45/EoF0naexusdPq18W/07c4xp5/SYJLuPkCQub:kVhtY8TuZN45NF0rnkH/0A4x/7LuD
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FineTop = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FineTop.exe" FineTop.exe -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{CBF53489-AD8D-4637-965A-413861EEC7CF} regsvr32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\TabProcGrowth = "0" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\TabProcGrowth = "0" regsvr32.exe -
Modifies registry class 46 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\VersionIndependentProgID\ = "FineTop.TopBand" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand.1\ = "TopBand Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\ = "FineTop" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\TypeLib\ = "{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\TypeLib\ = "{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\TypeLib\ = "{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand\ = "TopBand Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FineTop.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\ = "ITopBand" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand\CLSID\ = "{CBF53489-AD8D-4637-965A-413861EEC7CF}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand\CurVer\ = "FineTop.TopBand.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\ = "FineTop 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand.1\CLSID\ = "{CBF53489-AD8D-4637-965A-413861EEC7CF}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\ = "ITopBand" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FineTop.TopBand\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\ProgID\ = "FineTop.TopBand.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FineTop.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CBF53489-AD8D-4637-965A-413861EEC7CF}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E54C6DC-A2C6-404C-A36F-DE346281B3A7}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1AACA8D-4899-4D6C-B360-403A5A20B5D2} regsvr32.exe -
Suspicious use of SetWindowsHookEx 64 IoCs
pid Process 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe 3644 FineTop.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3644 wrote to memory of 3952 3644 FineTop.exe 84 PID 3644 wrote to memory of 3952 3644 FineTop.exe 84 PID 3644 wrote to memory of 3952 3644 FineTop.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\FineTop.exe"C:\Users\Admin\AppData\Local\Temp\FineTop.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 /s "C:\Users\Admin\AppData\Local\Temp\FineTop.dll"2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:3952
-