Analysis
-
max time kernel
99s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
14-06-2023 14:42
Static task
static1
Behavioral task
behavioral1
Sample
Cab2B36.cab
Resource
win7-20230220-en
windows7-x64
0 signatures
150 seconds
Behavioral task
behavioral2
Sample
Cab2B36.cab
Resource
win10v2004-20230220-en
windows10-2004-x64
0 signatures
150 seconds
Behavioral task
behavioral3
Sample
authroot.stl
Resource
win7-20230220-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral4
Sample
authroot.stl
Resource
win10v2004-20230220-en
windows10-2004-x64
7 signatures
150 seconds
General
-
Target
authroot.stl
-
Size
161KB
-
MD5
73b4b714b42fc9a6aaefd0ae59adb009
-
SHA1
efdaffd5b0ad21913d22001d91bf6c19ecb4ac41
-
SHA256
c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd
-
SHA512
73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd
-
SSDEEP
1536:glJXlCUsGRvk/99SFrdW5ib1NWdm1wpzru2RfEyjYZjCQavSmt6t9:glJXqGRI0Sdm0zru2RUjCjvyz
Score
3/10
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 AcroRd32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz AcroRd32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\Local Settings OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\stl_auto_file OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\.stl OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\stl_auto_file\shell OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\stl_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe\" \"%1\"" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\Local Settings cmd.exe Set value (str) \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\.stl\ = "stl_auto_file" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\stl_auto_file\shell\Read OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000_Classes\stl_auto_file\shell\Read\command OpenWith.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4440 OpenWith.exe -
Suspicious use of SetWindowsHookEx 25 IoCs
pid Process 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 4440 OpenWith.exe 5112 AcroRd32.exe 5112 AcroRd32.exe 5112 AcroRd32.exe 5112 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4440 wrote to memory of 5112 4440 OpenWith.exe 87 PID 4440 wrote to memory of 5112 4440 OpenWith.exe 87 PID 4440 wrote to memory of 5112 4440 OpenWith.exe 87 PID 5112 wrote to memory of 3252 5112 AcroRd32.exe 94 PID 5112 wrote to memory of 3252 5112 AcroRd32.exe 94 PID 5112 wrote to memory of 3252 5112 AcroRd32.exe 94 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 3840 3252 RdrCEF.exe 95 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96 PID 3252 wrote to memory of 4924 3252 RdrCEF.exe 96
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\authroot.stl1⤵
- Modifies registry class
PID:1560
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\authroot.stl"2⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5112 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=165140433⤵
- Suspicious use of WriteProcessMemory
PID:3252 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=4FF29B2AC2E732DC2002A56336C302FD --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:24⤵PID:3840
-
-
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=6D311DBC465C07F9CC1652FAA04FBB46 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=6D311DBC465C07F9CC1652FAA04FBB46 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:14⤵PID:4924
-
-
-
-
C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4740