Malicious PDF — malware analysis report

Static analysis result for SHA-256 c951848ced082c6e…

MALICIOUS

PDF

38.4 KB Authoring application: Adobe PDF Library 9.0
MD5: 59f4ff522b248171fa8b2e46247adcd7 SHA-1: 3130168d2016a0ea91bae7bbc4c4d876dd3a1ac3 SHA-256: c951848ced082c6ee410e468aad3364a4c8e85b7f910fbf7361d7b190861a799
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a phishing or SEO manipulation campaign, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. It contains a large number of embedded URLs, all pointing to external PDF files hosted on various domains. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to traffic redirection or phishing. No scripts were extracted from this sample.

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://47secretstoayoungeryou.com/uploads/1/3/0/3/130323998/gotozukaloda_tatijin_dasekazosa.pdf
    • http://nidinidi.com/uploads/1/3/0/4/130436513/wewiwevoriwuno.pdf
    • http://nfldraftdays.com/uploads/1/3/0/5/130539912/dfe894b2241.pdf
    • http://kedakuguko.zagruzka7km.com/uploads/2020/01/28/3431291.pdf
    • http://conectatestore.com/uploads/1/3/0/6/130603737/c54fa6b8bc5e.pdf
    • http://kueadressesdesign.com/uploads/1/3/0/4/130436074/6344161.pdf
    • http://motionfuels-arkansas.com/uploads/1/3/0/4/130483572/regubamalepujutibedi.pdf
    • http://bestwritingconferences.com/uploads/1/3/0/6/130620970/talovaj_xukebotum_bolet.pdf
    • http://mezufuvum.activityedge.com/uploads/2020/01/27/adaae90d554.pdf
    • http://tazuges.blamecharlie.com/uploads/2020/01/28/podojej_pazuwuzurodek.pdf
    • http://martinranchnv.com/uploads/1/3/0/5/130551864/kukirejutifu.pdf
    • https://lokutefupi.weebly.com/uploads/1/3/0/4/130435781/27b980dc3.pdf
    • http://ndtasanantonio.org/uploads/1/3/0/6/130621278/130621278.html#nintendo+3ds+apk++android

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014df.bin
a50396c14a915f12cdd7785ab2730797df289c73607b0f94bb7d4e9e3ca9a2cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14DF 8024 bytes

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