Malicious PDF — malware analysis report

Static analysis result for SHA-256 9072d552c6b2449f…

MALICIOUS

PDF

44.6 KB Authoring application: Pdftk
MD5: 615997b393bc01b867e1115222da799d SHA-1: 41da4f75d8e69f7d85990375337ccc61f7d16293 SHA-256: 9072d552c6b2449fdc1b321f68cae4af1eeaff2f21ed144f22bfec37df4bcd47
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains, indicating a link farm or SEO manipulation tactic. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may contain instructions for executing commands using Windows scripting tools, which could be used to download and execute further payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious phishing intent.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://allesaker.com/uploads/1/3/0/4/130436068/2634971.pdf
    • http://eprivatum.com/uploads/1/3/0/5/130589205/jajuweb_jizememe_samawaw.pdf
    • http://ontrackrti.net/uploads/1/3/0/6/130620341/2131989.pdf
    • http://oldtowndoggiewash.com/uploads/1/3/0/6/130604230/buzina-tiberizile-jiwinata-nijak.pdf
    • http://jozibestwomensclinic.com/uploads/1/3/0/7/130775280/luvav.pdf
    • http://mrstinabullteacher.com/uploads/1/3/0/2/130270866/nogobaxulumatudaxe.pdf
    • http://barrelsoflove.net/uploads/1/3/0/6/130640006/jofepuxuvu.pdf
    • http://danielmccurley.com/uploads/1/3/0/4/130476447/nawuxoduxelurafa.pdf
    • http://discountductcleaning.com/uploads/1/3/0/5/130550716/9687525.pdf
    • http://tomatobutts.org/uploads/1/3/0/7/130775704/07b75707a55f4.pdf
    • http://weedgrowguide.org/uploads/1/3/0/7/130776196/1539581.pdf
    • http://dalal.la/uploads/1/3/0/7/130740624/fazitaveju.pdf
    • http://lluviaoutsourced.com/uploads/1/3/0/4/130483279/joxasenafabi-gonowuzev-zukuja-galogesinijub.pdf
    • http://www.photovolumetrix.com/uploads/1/3/0/2/130289721/5472518.pdf
    • http://www.michiesartisanmeatsandtreats.com/uploads/1/3/0/4/130435925/a0e559d710b7170.pdf
    • http://yinghunzuanshi.br3h.com/uploads/1/3/0/5/130588497/318842.pdf
    • http://vn55.brdge.org/uploads/1/3/0/8/130874050/130874050.html#how+to+edit+360+video+in+premiere+pro

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051a1.bin
9fd6cefef51424bb6dfd379705d3b6ccf93284ed708141c342870fab67ea1f91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51A1 8500 bytes

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