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
162s -
max time network
172s -
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/WorkWinǽƤ.doc
-
Size
2.1MB
-
MD5
52919595b9a9199b85bf8ac08bd602eb
-
SHA1
58f3ed98a84922926fc5b619234151d3599d6d9b
-
SHA256
38f0c9d556860476d7033367086aa371f97054ba01b0fc96acc057b4728798c6
-
SHA512
f94758d4963165853bd448723298d2e56964aafdd3f9c1f8a324d512c3d598acfb2a3c876fc3f1526551e60093e77c2be2ba70fe793c43df6440020d12eb5310
-
SSDEEP
49152:EmbZKIwBXDu9fvRP7UqpBN8JeLEc370sNZGie77:bwVpDu9f5zZpl7b
Malware Config
Signatures
-
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2020 WINWORD.EXE 2020 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE 2020 WINWORD.EXE
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\workwinScreen\WorkWinǽƤ.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2020
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1268 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:81⤵PID:4404