Malicious PDF — malware analysis report

Static analysis result for SHA-256 51587ba265895575…

MALICIOUS

PDF

50.3 KB Authoring application: LibreOffice Draw First seen: 2020-09-07
MD5: 03104aa5568aa45e1d54d7509e9909e7 SHA-1: 8190c11f204892bc612ba9bee01fed4bda292403 SHA-256: 51587ba2658955750740e1574dc8e3c35fd0c9987e531c5431d4664ce9dbe948
160 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files, indicating a link farm designed to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature. The document body, though partially corrupted, suggests a lure related to a motivation letter, likely to trick users into clicking the embedded links and downloading further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ziji.sally-girl.pw/uploads/2020/01/27/tuliz.pdf In PDF document text
    • http://propiedadesfibrastextiles.com/uploads/2020/01/27/pufixi_bazeg_basizowevex.pdfIn PDF document text
    • http://kimonomer.tahocentr.ru/uploads/2020/01/27/5378558.pdfIn PDF document text
    • http://mylifebuilder.org/uploads/1/3/0/3/130323329/vavekikalazok-rofozunig-vetasogibufeve-jexixeposu.pdfIn PDF document text
    • http://southerngirlcoffee.com/uploads/1/3/0/6/130603945/170236.pdfIn PDF document text
    • http://loveunitylife.com/uploads/1/3/0/4/130483805/dugibepobetifo.pdfIn PDF document text
    • http://landscapedreaming.com/uploads/1/3/0/2/130271080/fajedowumi-gazevozev-wevabevorug-vanibu.pdfIn PDF document text
    • http://gezoz.fabrika-perchatok.com/uploads/2020/01/27/muxoxopeku_xinenobadozigo_suket.pdfIn PDF document text
    • http://bababa.vmeshatelstva-na-trubah-yaichnikah.ru/uploads/2020/01/27/5010095.pdfIn PDF document text
    • http://mrkdenton.com/uploads/1/3/0/5/130539130/mosofelidevej-patof.pdfIn PDF document text
    • http://alexandriamooneyjones.com/uploads/1/3/0/3/130379488/fowuni.pdfIn PDF document text
    • http://47ranchoregon.com/uploads/1/3/0/4/130435925/3a1b9267f91b9.pdfIn PDF document text
    • https://xapizawawejux.weebly.com/uploads/1/3/0/5/130590233/33f596252d.pdfIn PDF document text
    • http://powi.comparatuapuesta.com/uploads/2020/01/28/4876220.pdfIn PDF document text
    • http://msert.net/uploads/1/3/0/5/130551013/9986622.pdfIn PDF document text
    • http://relono.lspd-fivelife.fr/uploads/2020/01/27/xigiguvimegix.pdfIn PDF document text
    • http://southernservices1.com/uploads/1/3/0/3/130323423/ef1b8ab3e.pdfIn PDF document text
    • https://gumufofokiv.weebly.com/uploads/1/3/0/3/130313400/fukekus_negugadunagele_vijutulixus_mejowunase.pdfIn PDF document text
    • http://mrmanoharan.com/uploads/1/3/0/6/130621812/vugod.pdfIn PDF document text
    • https://bojotuduxo.weebly.com/uploads/1/3/0/2/130272387/2909288.pdfIn PDF document text
    • http://sandyburlesoneportfoliowfu.com/uploads/1/3/0/6/130620752/detezokolulizif.pdfIn PDF document text
    • http://tahoetimbersledtours.com/uploads/1/3/0/6/130620313/dujulafibipemogi.pdfIn PDF document text
    • http://creatingtheconditionsfortransformation.com/uploads/1/3/0/4/130435781/deruriguniga.pdfIn PDF document text
    • http://rechtspraak-republieknl-aarde.space/uploads/1/3/0/2/130287960/fenegarudonoraj_moperura.pdfIn PDF document text
    • http://oakclass.com/uploads/1/3/0/6/130621123/130621123.html#motivation+letter+for+job+application+pdfIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB 8216 bytes
SHA-256: 27c61bc6a639353ca14a5bfbdabe92e5f7ffdbd04acf37f545c619257a6fb79e

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