Analysis
- max time kernel
141s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2024, 19:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
a77a527b30f7be0d8e9cf4a601d52f2d.exe
Resource
win7-20231215-en
windows7-x64
25 signatures
150 seconds
Behavioral task
behavioral2
Sample
a77a527b30f7be0d8e9cf4a601d52f2d.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
25 signatures
150 seconds
General
- Target a77a527b30f7be0d8e9cf4a601d52f2d.exe
- Size 512KB
- Sample240107-x3gamadcc8
- SHA256 f4b57efb0b934cfff9c462f4ead94917edb293d667aa292a416bbdc531c934c4
- MD5 a77a527b30f7be0d8e9cf4a601d52f2d
- SHA1 4ebe06ec0ed4ed976588684d60a9c0c1449f11b7
- SHA512 637127a78cb1dcd9772c04582a8cc9491d16d5639ad922b817b1279cbd0a1e4ac6732d9fad73ce8f526495b40f05ceb7be2e5c5d6e2547fbead7bf3b4081211b
- SSDEEP 6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6o:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5/
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" greavaeewe.exe - Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" greavaeewe.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" greavaeewe.exe - Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" greavaeewe.exe - 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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation a77a527b30f7be0d8e9cf4a601d52f2d.exe - Executes dropped EXE 5 IoCs
pid Process 4812 greavaeewe.exe 828 zrbccjkecfxfsut.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 1416 jnzngrrl.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirstRunDisabled = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" greavaeewe.exe - Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "dinhiubmnxrgx.exe" zrbccjkecfxfsut.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\eathijmi = "greavaeewe.exe" zrbccjkecfxfsut.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\qnuabieo = "zrbccjkecfxfsut.exe" zrbccjkecfxfsut.exe - Enumerates connected drives 3 TTPs 64 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\v: jnzngrrl.exe File opened (read-only) \??\h: greavaeewe.exe File opened (read-only) \??\j: greavaeewe.exe File opened (read-only) \??\l: greavaeewe.exe File opened (read-only) \??\x: greavaeewe.exe File opened (read-only) \??\h: jnzngrrl.exe File opened (read-only) \??\l: jnzngrrl.exe File opened (read-only) \??\a: jnzngrrl.exe File opened (read-only) \??\p: jnzngrrl.exe File opened (read-only) \??\s: jnzngrrl.exe File opened (read-only) \??\n: jnzngrrl.exe File opened (read-only) \??\h: jnzngrrl.exe File opened (read-only) \??\i: greavaeewe.exe File opened (read-only) \??\k: greavaeewe.exe File opened (read-only) \??\q: greavaeewe.exe File opened (read-only) \??\b: jnzngrrl.exe File opened (read-only) \??\x: jnzngrrl.exe File opened (read-only) \??\m: jnzngrrl.exe File opened (read-only) \??\i: jnzngrrl.exe File opened (read-only) \??\b: jnzngrrl.exe File opened (read-only) \??\w: greavaeewe.exe File opened (read-only) \??\e: jnzngrrl.exe File opened (read-only) \??\i: jnzngrrl.exe File opened (read-only) \??\r: jnzngrrl.exe File opened (read-only) \??\x: jnzngrrl.exe File opened (read-only) \??\u: greavaeewe.exe File opened (read-only) \??\y: jnzngrrl.exe File opened (read-only) \??\a: greavaeewe.exe File opened (read-only) \??\v: greavaeewe.exe File opened (read-only) \??\u: jnzngrrl.exe File opened (read-only) \??\l: jnzngrrl.exe File opened (read-only) \??\r: jnzngrrl.exe File opened (read-only) \??\z: jnzngrrl.exe File opened (read-only) \??\q: jnzngrrl.exe File opened (read-only) \??\t: jnzngrrl.exe File opened (read-only) \??\k: jnzngrrl.exe File opened (read-only) \??\w: jnzngrrl.exe File opened (read-only) \??\o: jnzngrrl.exe File opened (read-only) \??\e: greavaeewe.exe File opened (read-only) \??\m: greavaeewe.exe File opened (read-only) \??\p: greavaeewe.exe File opened (read-only) \??\t: greavaeewe.exe File opened (read-only) \??\e: jnzngrrl.exe File opened (read-only) \??\u: jnzngrrl.exe File opened (read-only) \??\r: greavaeewe.exe File opened (read-only) \??\a: jnzngrrl.exe File opened (read-only) \??\o: jnzngrrl.exe File opened (read-only) \??\s: jnzngrrl.exe File opened (read-only) \??\p: jnzngrrl.exe File opened (read-only) \??\z: greavaeewe.exe File opened (read-only) \??\j: jnzngrrl.exe File opened (read-only) \??\k: jnzngrrl.exe File opened (read-only) \??\g: jnzngrrl.exe File opened (read-only) \??\z: jnzngrrl.exe File opened (read-only) \??\j: jnzngrrl.exe File opened (read-only) \??\b: greavaeewe.exe File opened (read-only) \??\g: greavaeewe.exe File opened (read-only) \??\n: greavaeewe.exe File opened (read-only) \??\s: greavaeewe.exe File opened (read-only) \??\y: jnzngrrl.exe File opened (read-only) \??\m: jnzngrrl.exe File opened (read-only) \??\t: jnzngrrl.exe File opened (read-only) \??\y: greavaeewe.exe File opened (read-only) \??\v: jnzngrrl.exe - Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan = "0" greavaeewe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = "4294967197" greavaeewe.exe - AutoIT Executable 2 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/2456-0-0x0000000000400000-0x0000000000496000-memory.dmp autoit_exe behavioral2/files/0x0007000000023220-18.dat autoit_exe - Drops file in System32 directory 13 IoCs
description ioc Process File created C:\Windows\SysWOW64\jnzngrrl.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File created C:\Windows\SysWOW64\dinhiubmnxrgx.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File opened for modification \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jnzngrrl.exe File created C:\Windows\SysWOW64\zrbccjkecfxfsut.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File opened for modification C:\Windows\SysWOW64\zrbccjkecfxfsut.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File opened for modification C:\Windows\SysWOW64\jnzngrrl.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File created \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jnzngrrl.exe File created C:\Windows\SysWOW64\greavaeewe.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File opened for modification C:\Windows\SysWOW64\greavaeewe.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File opened for modification C:\Windows\SysWOW64\dinhiubmnxrgx.exe a77a527b30f7be0d8e9cf4a601d52f2d.exe File opened for modification C:\Windows\SysWOW64\msvbvm60.dll greavaeewe.exe File created \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jnzngrrl.exe - Drops file in Program Files directory 15 IoCs
description ioc Process File created \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jnzngrrl.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jnzngrrl.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jnzngrrl.exe File created \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.nal jnzngrrl.exe File created \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jnzngrrl.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.nal jnzngrrl.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.nal jnzngrrl.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.nal jnzngrrl.exe - Drops file in Windows directory 19 IoCs
description ioc Process File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification C:\Windows\mydoc.rtf WINWORD.EXE File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jnzngrrl.exe File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification C:\Windows\mydoc.rtf a77a527b30f7be0d8e9cf4a601d52f2d.exe File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jnzngrrl.exe File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jnzngrrl.exe File created C:\Windows\~$mydoc.rtf WINWORD.EXE File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jnzngrrl.exe File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jnzngrrl.exe File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jnzngrrl.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jnzngrrl.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 - Modifies registry class 20 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsh greavaeewe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs greavaeewe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.reg greavaeewe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "33442D7A9C2C83276D4376D170232CDB7CF264DC" a77a527b30f7be0d8e9cf4a601d52f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "1938C67F14E7DAC5B8BD7C92EDE234C6" a77a527b30f7be0d8e9cf4a601d52f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc\ = "txtfile" greavaeewe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile" greavaeewe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile" greavaeewe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2FC1B15D44E439EC53C9B9D033E8D7CA" a77a527b30f7be0d8e9cf4a601d52f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7EF5FF8E482E85199131D65B7D97BDE0E13C583066456342D69C" a77a527b30f7be0d8e9cf4a601d52f2d.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.bat greavaeewe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSH\ = "txtfile" greavaeewe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsf greavaeewe.exe Key created \REGISTRY\MACHINE\Software\Classes\CLV.Classes a77a527b30f7be0d8e9cf4a601d52f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6BBFF9CDF916F1E383083B4B86E93994B08C028B4260033FE2CD459E09D5" a77a527b30f7be0d8e9cf4a601d52f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7F46BB4FF1B21D0D279D0A48A749163" a77a527b30f7be0d8e9cf4a601d52f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile" greavaeewe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc greavaeewe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile" greavaeewe.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000_Classes\Local Settings a77a527b30f7be0d8e9cf4a601d52f2d.exe - Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1860 WINWORD.EXE 1860 WINWORD.EXE - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 4032 dinhiubmnxrgx.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe - Suspicious use of FindShellTrayWindow 18 IoCs
pid Process 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe - Suspicious use of SendNotifyMessage 18 IoCs
pid Process 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 828 zrbccjkecfxfsut.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 4812 greavaeewe.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 2392 jnzngrrl.exe 4032 dinhiubmnxrgx.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe 1416 jnzngrrl.exe - Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 1860 WINWORD.EXE 1860 WINWORD.EXE 1860 WINWORD.EXE 1860 WINWORD.EXE 1860 WINWORD.EXE 1860 WINWORD.EXE 1860 WINWORD.EXE - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2456 wrote to memory of 4812 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 29 PID 2456 wrote to memory of 4812 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 29 PID 2456 wrote to memory of 4812 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 29 PID 2456 wrote to memory of 828 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 19 PID 2456 wrote to memory of 828 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 19 PID 2456 wrote to memory of 828 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 19 PID 2456 wrote to memory of 2392 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 28 PID 2456 wrote to memory of 2392 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 28 PID 2456 wrote to memory of 2392 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 28 PID 2456 wrote to memory of 4032 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 27 PID 2456 wrote to memory of 4032 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 27 PID 2456 wrote to memory of 4032 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 27 PID 2456 wrote to memory of 1860 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 21 PID 2456 wrote to memory of 1860 2456 a77a527b30f7be0d8e9cf4a601d52f2d.exe 21 PID 4812 wrote to memory of 1416 4812 greavaeewe.exe 25 PID 4812 wrote to memory of 1416 4812 greavaeewe.exe 25 PID 4812 wrote to memory of 1416 4812 greavaeewe.exe 25
Processes
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C:\Users\Admin\AppData\Local\Temp\a77a527b30f7be0d8e9cf4a601d52f2d.exe"C:\Users\Admin\AppData\Local\Temp\a77a527b30f7be0d8e9cf4a601d52f2d.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2456 -
C:\Windows\SysWOW64\zrbccjkecfxfsut.exezrbccjkecfxfsut.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:828
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""2⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1860
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C:\Windows\SysWOW64\dinhiubmnxrgx.exedinhiubmnxrgx.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4032
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C:\Windows\SysWOW64\jnzngrrl.exejnzngrrl.exe2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2392
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C:\Windows\SysWOW64\greavaeewe.exegreavaeewe.exe2⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Enumerates connected drives
- Modifies WinLogon
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4812
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C:\Windows\SysWOW64\jnzngrrl.exeC:\Windows\system32\jnzngrrl.exe1⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1416
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify Tools
2Modify Registry
6