Overview
overview
10Static
static
8test/0b627...5b.doc
windows7_x64
10test/0b627...5b.doc
windows10_x64
10test/0dded...66.doc
windows7_x64
10test/0dded...66.doc
windows10_x64
10test/91B5D...9D.msi
windows7_x64
8test/91B5D...9D.msi
windows10_x64
10test/ed01e...aa.exe
windows7_x64
10test/ed01e...aa.exe
windows10_x64
10test/fe9d7...8f.exe
windows7_x64
10test/fe9d7...8f.exe
windows10_x64
10Analysis
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max time kernel
39s -
max time network
158s -
platform
windows7_x64 -
resource
win7-en-20211104 -
submitted
02-12-2021 11:58
Static task
static1
Behavioral task
behavioral1
Sample
test/0b627b4eca9b9e8bd04a0d1a103876f6e0fa91049fd0b51bae9ae41acaacf15b.doc
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
test/0b627b4eca9b9e8bd04a0d1a103876f6e0fa91049fd0b51bae9ae41acaacf15b.doc
Resource
win10-en-20211104
Behavioral task
behavioral3
Sample
test/0dded430c1958ae0ec60c2d50ab99f562269ad1ee09db17606661bd55cd29c66.doc
Resource
win7-en-20211014
Behavioral task
behavioral4
Sample
test/0dded430c1958ae0ec60c2d50ab99f562269ad1ee09db17606661bd55cd29c66.doc
Resource
win10-en-20211104
Behavioral task
behavioral5
Sample
test/91B5DB3C0CCBD68BD04C24571E27F99D.msi
Resource
win7-en-20211014
Behavioral task
behavioral6
Sample
test/91B5DB3C0CCBD68BD04C24571E27F99D.msi
Resource
win10-en-20211104
Behavioral task
behavioral7
Sample
test/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Resource
win7-en-20211014
Behavioral task
behavioral8
Sample
test/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Resource
win10-en-20211104
Behavioral task
behavioral9
Sample
test/fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe
Resource
win7-en-20211104
Behavioral task
behavioral10
Sample
test/fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe
Resource
win10-en-20211014
General
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Target
test/fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe
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Size
3.6MB
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MD5
743a6891999db5d7179091aba5f98fdb
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SHA1
eeca4b8f88fcae9db6f54304270699d459fb5722
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SHA256
fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f
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SHA512
9edef033663c828536190332ec87ac0096ffddae934d17c51b255a55ecb05774211a0edb1915c19384641befa291cfdfd2e3f878bf3b827f8b203ec1bee9dd96
Malware Config
Signatures
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Ammyy Admin
Remote admin tool with various capabilities.
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AmmyyAdmin Payload 3 IoCs
resource yara_rule behavioral9/files/0x000500000001260b-100.dat family_ammyyadmin behavioral9/files/0x000500000001260b-98.dat family_ammyyadmin behavioral9/files/0x000500000001260b-97.dat family_ammyyadmin -
FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
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Creates new service(s) 1 TTPs
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Executes dropped EXE 3 IoCs
pid Process 1492 TextEdit.exe 1140 wlanspeed.exe 2412 outst.exe -
Modifies Windows Firewall 1 TTPs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\International\Geo\Nation wlanspeed.exe -
Loads dropped DLL 7 IoCs
pid Process 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Run fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SinTech client = "C:\\Program Files (x86)\\SinTech\\TextEdit.exe" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 1140 wlanspeed.exe 1140 wlanspeed.exe 1140 wlanspeed.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\SinTech\TextEdit.exe fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe File created C:\Program Files (x86)\SinTech\TextEdit.exe.config fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe -
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies Internet Explorer Automatic Crash Recovery 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\Recovery\AutoRecover = "2" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe -
Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\NoProtectedModeBanner = "1" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\Check_Associations = "no" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\IE8RunOnceLastShown = "1" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{C1830B91-5366-11EC-A585-5ADDF1EB9C08} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff3d0000003d000000c3040000a2020000 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff5600000000000000dc04000065020000 iexplore.exe Key created \REGISTRY\MACHINE\Software\Microsoft\Internet Explorer\main fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\IE8TourShown = "1" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\Recovery\AutoRecover = "2" fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff6f00000019000000f50400007e020000 iexplore.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\IE8RunOnceLastShown_TIMESTAMP = 8afe20f63237d401 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\IE8TourShownTime = 0c8ab1fc3237d401 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe Key created \REGISTRY\MACHINE\Software\Microsoft\Internet Explorer\Recovery fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 1252 iexplore.exe 1252 iexplore.exe 1252 iexplore.exe 1252 iexplore.exe -
Suspicious use of SetWindowsHookEx 17 IoCs
pid Process 1140 wlanspeed.exe 1252 iexplore.exe 1252 iexplore.exe 1016 IEXPLORE.EXE 1016 IEXPLORE.EXE 1252 iexplore.exe 1252 iexplore.exe 1384 IEXPLORE.EXE 1384 IEXPLORE.EXE 1252 iexplore.exe 1252 iexplore.exe 2076 IEXPLORE.EXE 2076 IEXPLORE.EXE 1252 iexplore.exe 1252 iexplore.exe 2608 IEXPLORE.EXE 2608 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 652 wrote to memory of 1492 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 28 PID 652 wrote to memory of 1492 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 28 PID 652 wrote to memory of 1492 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 28 PID 652 wrote to memory of 1492 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 28 PID 652 wrote to memory of 832 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 29 PID 652 wrote to memory of 832 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 29 PID 652 wrote to memory of 832 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 29 PID 652 wrote to memory of 832 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 29 PID 832 wrote to memory of 1144 832 cmd.exe 31 PID 832 wrote to memory of 1144 832 cmd.exe 31 PID 832 wrote to memory of 1144 832 cmd.exe 31 PID 832 wrote to memory of 1144 832 cmd.exe 31 PID 832 wrote to memory of 1904 832 cmd.exe 32 PID 832 wrote to memory of 1904 832 cmd.exe 32 PID 832 wrote to memory of 1904 832 cmd.exe 32 PID 832 wrote to memory of 1904 832 cmd.exe 32 PID 832 wrote to memory of 1532 832 cmd.exe 33 PID 832 wrote to memory of 1532 832 cmd.exe 33 PID 832 wrote to memory of 1532 832 cmd.exe 33 PID 832 wrote to memory of 1532 832 cmd.exe 33 PID 652 wrote to memory of 1140 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 34 PID 652 wrote to memory of 1140 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 34 PID 652 wrote to memory of 1140 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 34 PID 652 wrote to memory of 1140 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 34 PID 1252 wrote to memory of 1016 1252 iexplore.exe 37 PID 1252 wrote to memory of 1016 1252 iexplore.exe 37 PID 1252 wrote to memory of 1016 1252 iexplore.exe 37 PID 1252 wrote to memory of 1016 1252 iexplore.exe 37 PID 1252 wrote to memory of 1384 1252 iexplore.exe 39 PID 1252 wrote to memory of 1384 1252 iexplore.exe 39 PID 1252 wrote to memory of 1384 1252 iexplore.exe 39 PID 1252 wrote to memory of 1384 1252 iexplore.exe 39 PID 1252 wrote to memory of 2076 1252 iexplore.exe 40 PID 1252 wrote to memory of 2076 1252 iexplore.exe 40 PID 1252 wrote to memory of 2076 1252 iexplore.exe 40 PID 1252 wrote to memory of 2076 1252 iexplore.exe 40 PID 652 wrote to memory of 2412 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 41 PID 652 wrote to memory of 2412 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 41 PID 652 wrote to memory of 2412 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 41 PID 652 wrote to memory of 2412 652 fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe 41 PID 1252 wrote to memory of 2608 1252 iexplore.exe 42 PID 1252 wrote to memory of 2608 1252 iexplore.exe 42 PID 1252 wrote to memory of 2608 1252 iexplore.exe 42 PID 1252 wrote to memory of 2608 1252 iexplore.exe 42
Processes
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C:\Users\Admin\AppData\Local\Temp\test\fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe"C:\Users\Admin\AppData\Local\Temp\test\fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Modifies Internet Explorer Automatic Crash Recovery
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:652 -
C:\Program Files (x86)\SinTech\TextEdit.exe"C:\Program Files (x86)\SinTech\TextEdit.exe"2⤵
- Executes dropped EXE
PID:1492
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C:\Windows\SysWOW64\cmd.execmd /c sc create Wlanspeed binpath= "C:\ProgramData\Wlanspeed\wlanspeed.exe -service" start= auto displayname= "Wlanspeed" & sc description Wlanspeed "Wlanspeed service" && netsh advfirewall firewall add rule name="Wlanspeed" dir=in action=allow profile=any description="Wlanspeed service" program="C:\programdata\Wlanspeed\wlanspeed.exe" && netsh advfirewall firewall add rule name="Wlanspeed" dir=out action=allow profile=any description="Wlanspeed service" program="C:\programdata\Wlanspeed\wlanspeed.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:832 -
C:\Windows\SysWOW64\sc.exesc create Wlanspeed binpath= "C:\ProgramData\Wlanspeed\wlanspeed.exe -service" start= auto displayname= "Wlanspeed"3⤵PID:1144
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C:\Windows\SysWOW64\sc.exesc description Wlanspeed "Wlanspeed service"3⤵PID:1904
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C:\Windows\SysWOW64\netsh.exenetsh advfirewall firewall add rule name="Wlanspeed" dir=in action=allow profile=any description="Wlanspeed service" program="C:\programdata\Wlanspeed\wlanspeed.exe"3⤵PID:1532
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C:\ProgramData\Wlanspeed\wlanspeed.exe"C:\ProgramData\Wlanspeed\wlanspeed.exe" -getid -nogui2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
PID:1140
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C:\ProgramData\Wlanspeed\outst.exe"C:\ProgramData\Wlanspeed\outst.exe" -outid2⤵
- Executes dropped EXE
PID:2412
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1252 CREDAT:275457 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1016
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1252 CREDAT:537617 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1384
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1252 CREDAT:275467 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2076
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1252 CREDAT:275473 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2608
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1252 CREDAT:1061921 /prefetch:22⤵PID:764
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1252 CREDAT:734233 /prefetch:22⤵PID:3144
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