Malicious PDF — malware analysis report

Static analysis result for SHA-256 3af66cf98118c524…

MALICIOUS

PDF

61.0 KB Authoring application: LibreOffice
MD5: 82cb9728e6ef7f33d2448e3d7fd14d9c SHA-1: d038ff0beee80a349e9a71a607ae5a70ad9f9adb SHA-256: 3af66cf98118c524132e3674d05aecd7606ba2b5bf013f14dc42fa80eb0e8777
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to other PDF files, which is indicative of a link farm or phishing lure. The document body, though heavily corrupted, mentions 'Keystroke logger app for android' and presents a date, suggesting a deceptive pretext to encourage downloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

Heuristics 3

  • 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
  • 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 https://diruveses.weebly.com/uploads/1/3/0/5/130543065/wokiso.pdf
    • http://sezekoxe.boom-trikes.ru/uploads/2020/01/27/guwimumalekotomiz.pdf
    • http://retab.pp-offer.info/uploads/2020/01/28/konemamakebi-nidar.pdf
    • https://manelabedasura.weebly.com/uploads/1/3/0/5/130543310/fitawuputaluko-pegovudim.pdf
    • http://mrskramlsclass.com/uploads/1/3/0/6/130620943/9ef1ec161fb83.pdf
    • http://xisavid.raz-ezzhaya.ru/uploads/2020/01/28/lugigevavuli.pdf
    • http://earthstarweb.com/uploads/1/3/0/2/130291713/9969233.pdf
    • https://vogotevuju.weebly.com/uploads/1/3/0/5/130589239/vodezakareviboderofa.pdf
    • https://novolexe.weebly.com/uploads/1/3/0/5/130588435/wubazemuviwib.pdf
    • http://jarosewex.storeshop.xyz/uploads/2020/01/28/9c7ff00d5372.pdf
    • http://boozybakerygames.com/uploads/1/3/0/5/130590666/nedawuzasuwadi.pdf
    • http://designpreviewer.com/uploads/1/3/0/2/130288380/pokomafukadaliji.pdf
    • http://suguz.cmcindia.org/uploads/2020/01/28/1288639.pdf
    • http://uniquelyyourslandscapes.com/uploads/1/3/0/2/130289540/7151687.pdf
    • https://tezajelevikik.weebly.com/uploads/1/3/0/5/130550690/fukegarajab_reliz.pdf
    • http://drfranklinlevin.com/uploads/1/3/0/6/130621233/lopuliseg_ginifanopuripiz.pdf
    • http://100percentcajun.com/uploads/1/3/0/4/130435787/xanirekebo.pdf
    • http://teenmamagrown.com/uploads/1/3/0/5/130551299/dusewonup_levusejes_tutavulaverefi_zapekexopijo.pdf
    • http://spiritcircuits.net/uploads/1/3/0/6/130604531/nibodiwovej.pdf
    • http://activeaidpartnerships.org/uploads/1/3/0/3/130323425/18839ed.pdf
    • https://domojaxabazifi.weebly.com/uploads/1/3/0/4/130483626/podiweleku.pdf
    • http://wifoxo.zv77.ru/uploads/2020/01/27/wakula.pdf
    • http://phhlca.org/uploads/1/3/0/4/130476244/90577359.pdf
    • http://obxaerialads.com/uploads/1/3/0/6/130620159/130620159.html#keystroke+logger+app+for+android
    • http://phhlca.org/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017be.bin
1e81d0a60412619f0ffe178f444f0bf7e1d89aa62d4decf8f93ecc8b37a51e49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17BE 8772 bytes

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