Overview
overview
8Static
static
7workwinScr...��.doc
windows7-x64
4workwinScr...��.doc
windows10-2004-x64
1workwinScr...60.dll
windows7-x64
1workwinScr...60.dll
windows10-2004-x64
1workwinScr...up.exe
windows7-x64
4workwinScr...up.exe
windows10-2004-x64
4workwinScr...hs.dll
windows7-x64
1workwinScr...hs.dll
windows10-2004-x64
1workwinScr...tv.exe
windows7-x64
8workwinScr...tv.exe
windows10-2004-x64
8workwinScr...rk.dll
windows7-x64
1workwinScr...rk.dll
windows10-2004-x64
1workwinScr...up.exe
windows7-x64
1workwinScr...up.exe
windows10-2004-x64
1workwinScr...tv.exe
windows7-x64
8workwinScr...tv.exe
windows10-2004-x64
8workwinScr...rk.dll
windows7-x64
1workwinScr...rk.dll
windows10-2004-x64
1workwinScr...tv.exe
windows7-x64
8workwinScr...tv.exe
windows10-2004-x64
8workwinScr...rk.dll
windows7-x64
1workwinScr...rk.dll
windows10-2004-x64
1workwinScr...TL.dll
windows7-x64
1workwinScr...TL.dll
windows10-2004-x64
1workwinScr...CK.dll
windows7-x64
1workwinScr...CK.dll
windows10-2004-x64
1workwinScr...er.exe
windows7-x64
1workwinScr...er.exe
windows10-2004-x64
8workwinScr...le.dll
windows7-x64
1workwinScr...le.dll
windows10-2004-x64
1workwinScr...��.exe
windows7-x64
1workwinScr...��.exe
windows10-2004-x64
1Analysis
-
max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11-03-2024 01:56
Behavioral task
behavioral1
Sample
workwinScreen/WorkWinǽƤ.doc
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
workwinScreen/WorkWinǽƤ.doc
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Msvbvm60.dll
Resource
win7-20240215-en
Behavioral task
behavioral4
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Msvbvm60.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Setup.exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Setup.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Vb6chs.dll
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Vb6chs.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/WorkWintv.exe
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/WorkWintv.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral11
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/wintvwork.dll
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/wintvwork.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Setup.exe
Resource
win7-20240220-en
Behavioral task
behavioral14
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/Setup.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral15
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/WorkWintv.exe
Resource
win7-20240221-en
Behavioral task
behavioral16
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/WorkWintv.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral17
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/wintvwork.dll
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
workwinScreen/Ӷ(Ա)/Ϊװ/wintvwork.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral19
Sample
workwinScreen/Ӷ(Ա)/ⰲװɫ/WorkWintv.exe
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
workwinScreen/Ӷ(Ա)/ⰲװɫ/WorkWintv.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral21
Sample
workwinScreen/Ӷ(Ա)/ⰲװɫ/wintvwork.dll
Resource
win7-20240221-en
Behavioral task
behavioral22
Sample
workwinScreen/Ӷ(Ա)/ⰲװɫ/wintvwork.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral23
Sample
workwinScreen//MSCOMCTL.dll
Resource
win7-20240220-en
Behavioral task
behavioral24
Sample
workwinScreen//MSCOMCTL.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral25
Sample
workwinScreen//MSWINSCK.dll
Resource
win7-20231129-en
Behavioral task
behavioral26
Sample
workwinScreen//MSWINSCK.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral27
Sample
workwinScreen//WorkWinTvServer.exe
Resource
win7-20240221-en
Behavioral task
behavioral28
Sample
workwinScreen//WorkWinTvServer.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral29
Sample
workwinScreen//eaagle.dll
Resource
win7-20240221-en
Behavioral task
behavioral30
Sample
workwinScreen//eaagle.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral31
Sample
workwinScreen//бʧܵ.exe
Resource
win7-20240221-en
Behavioral task
behavioral32
Sample
workwinScreen//бʧܵ.exe
Resource
win10v2004-20240226-en
General
-
Target
workwinScreen/Ӷ(Ա)/Ϊװ/WorkWintv.exe
-
Size
308KB
-
MD5
c1fc8c1681f87a3534a36ecae5da85dd
-
SHA1
9e97bd91c97deb0a2e958911c8941482458032b4
-
SHA256
587ad15bb2ff490aff122b27114cd0a50d89c54c3c4bdb75c1007bc618a739e5
-
SHA512
bc6522467b5240bddf2bb879ecec458fae8ab107016c47e5ea75bc46bd474c672f9ac01181627109261aae470dc814876b69e8141c6e7f0a56bc4e9e740347e7
-
SSDEEP
6144:wGPWPDwoEPePaPNOGCft2oSj3AO9dqj0AKrlIFHAuP6:w9D82CDQooSX9owAKrgH
Malware Config
Signatures
-
Disables Task Manager via registry modification
-
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MsWWintv = "C:\\Users\\Admin\\AppData\\Local\\Temp\\workwinScreen\\???????(?????)\\????????\\WorkWintv.exe" WorkWintv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MsWWintv = "C:\\Users\\Admin\\AppData\\Local\\Temp\\workwinScreen\\???????(?????)\\????????\\WorkWintv.exe" WorkWintv.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4108 WorkWintv.exe 4108 WorkWintv.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 4108 WorkWintv.exe 4108 WorkWintv.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4108 WorkWintv.exe 4108 WorkWintv.exe 4108 WorkWintv.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\workwinScreen\Ӷ(Ա)\Ϊװ\WorkWintv.exe"C:\Users\Admin\AppData\Local\Temp\workwinScreen\Ӷ(Ա)\Ϊװ\WorkWintv.exe"1⤵
- Adds Run key to start application
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:4108