Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce96aac3d98d22f5…

MALICIOUS

PDF

44.2 KB Authoring application: PDF Studio First seen: 2020-09-24
MD5: 4323ef268e274708693d3ab4d2c318ab SHA-1: b02c61afc2e6142b702ac9b0ae8d8d67c89995b2 SHA-256: ce96aac3d98d22f50028388b6badd1e809f16f268899cd5617495eec633386e2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. The document body, though partially corrupted, mentions 'Meal prep recipes for weight loss uk', suggesting a lure to disguise the malicious link farm.

Heuristics 3

  • 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.
  • 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://theporterauthority.com/uploads/1/3/0/4/130476069/romujuxitinutariv.pdf
    • http://obrienclan.com/uploads/1/3/0/2/130272095/48fd99c2ef7.pdf
    • http://theartofshade.de/uploads/1/3/0/6/130604405/27140ac9.pdf
    • http://anteako.com/uploads/1/3/0/5/130543476/d202491a75c.pdf
    • http://audreylewisinteriors.com/uploads/1/3/0/5/130550944/wotimu_gogum_savegixo_moxiruwamer.pdf
    • http://cairnsretreats.com/uploads/1/3/0/6/130621486/8419617bb6f.pdf
    • http://floydfx.com/uploads/1/3/0/6/130620888/tekomalasivugu-rafarodob-fuvebipe.pdf
    • http://monstermaniagame.com/uploads/1/3/0/2/130291434/muvakafiwome.pdf
    • http://cityonloc.com/uploads/1/3/0/6/130605302/130605302.html#meal+prep+recipes+for+weight+loss+uk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000121d.bin
9fd642436b37524611060152db456663448584d82f07da6bcf62b62edf52759a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121D 8916 bytes

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