Malicious PDF — malware analysis report

Static analysis result for SHA-256 19d6979335dca4ff…

MALICIOUS

PDF

39.7 KB Authoring application: Nitro PDF
MD5: 65268c98a24a767a013d9104052fb024 SHA-1: c819f512289f12224ebb232803a918f5c0993af1 SHA-256: 19d6979335dca4ff20b9240f37c52a2dc7c805e02d2555ca34fb1065d69dcfaa
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body, though partially corrupted, also contains many of these URLs, suggesting the primary purpose is to drive traffic to these external resources.

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 http://nexox.fotomag.ru/uploads/2020/01/27/monofixod-lomopexeba-sarog-delorakuj.pdf
    • http://drivingstem.net/uploads/1/3/0/2/130288720/9176059.pdf
    • http://volip.eosplit.ru/uploads/2020/01/29/243fbb5a66.pdf
    • https://nujesusapojedot.weebly.com/uploads/1/3/0/4/130483879/f964b42.pdf
    • http://selwoodplumbing.com/uploads/1/3/0/5/130539247/9462123.pdf
    • http://mommieceoapparel.com/uploads/1/3/0/4/130436182/3f3fe7db.pdf
    • http://masterpechi.ru/uploads/2020/01/28/324c07ef928fd8.pdf
    • http://nabu.prekrasniy.fund/uploads/2020/01/28/8159088.pdf
    • http://jinufelin.alfavent.info/uploads/2020/01/29/femejenelatozu.pdf
    • http://fapinet.3destate.ru/uploads/2020/01/27/wiran-jozevuxe-toboruj.pdf
    • http://floridasnowicecream.com/uploads/1/3/0/4/130490250/5692329.pdf
    • http://rumefewu.vikabibikova.ru/uploads/2020/01/28/wefugogexugiraxel.pdf
    • http://xavap.eastwestmine.com/uploads/2020/01/29/puzotuwukopive-jipawu-pivinuxufit-turize.pdf
    • https://wedifegafanose.weebly.com/uploads/1/3/0/4/130483275/dibukabox-desuxolobulod.pdf
    • http://ltchunting.com/uploads/1/3/0/6/130620685/xugezul-kekifesiv.pdf
    • http://tek.edinsoncastro.com/uploads/2020/01/27/tubaxiwu.pdf
    • http://tan.srpautomotrestucuman.com/uploads/2020/01/28/wenaluvexa.pdf
    • http://pmehard.com/uploads/1/3/0/5/130589316/73c7f726.pdf
    • http://infonetacademy.tech/uploads/2020/01/27/5703815.pdf
    • https://duwufanovivag.weebly.com/uploads/1/3/0/2/130273789/nudexoludosano.pdf
    • http://sspowersolutions.com/uploads/1/3/0/2/130289209/3dab7f14e05.pdf
    • http://wisemoneystrategies.com/uploads/1/3/0/6/130604544/130604544.html#fallout+4+max+mod+limit

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000164d.bin
18b60cb01416cded73036dd3194d8d900ef54f2f613e1c06d07259bddcef31a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x164D 8128 bytes

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