Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42b59f277cbcfe8…

MALICIOUS

PDF

58.6 KB Created: 2021-02-14 09:48:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 017e2aaa90482fee0bedbdc23e3f6d5e SHA-1: a2c06814238f97e9fa6acf9bb8d92802e18bd819 SHA-256: e42b59f277cbcfe8e952db13c38e9320d7822055ee1a6b61e474724f58f6b211
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which point to other PDFs, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier indicate malicious intent, likely to redirect users to malicious sites for further exploitation or phishing. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a malicious document designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8253

Heuristics 4

  • 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.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/aws?utm_term=phd+thesis+presentation+template+ppt
    • https://cdn.sqhk.co/sopiloroda/QTDhibY/76037762626.pdf
    • http://passive-income.ru/hack_game_hero_of_archerydyirw.pdf
    • https://cdn.sqhk.co/noxibogalu/igpBmkq/xeduzuvojobovujuxinewe.pdf
    • https://rodugetimevo.weebly.com/uploads/1/3/1/4/131407281/fofaxazejaxapezup.pdf
    • https://tujozidu.weebly.com/uploads/1/3/4/6/134694944/3981e7958ab9.pdf
    • https://pesowisigafu.weebly.com/uploads/1/3/0/7/130739627/gedipegis.pdf
    • https://wekexodaxax.weebly.com/uploads/1/3/4/7/134713384/xibiged.pdf
    • https://koxowugazetumul.weebly.com/uploads/1/3/6/0/136015765/gatigatuzake.pdf
    • https://vulabomanuxuw.weebly.com/uploads/1/3/4/8/134857085/3946736.pdf
    • https://cdn.sqhk.co/wezupobuwab/gGRChbc/wipipejizunoxadaxo.pdf
    • https://cdn.sqhk.co/nizaveni/zwgjftD/freshgrade_for_teachers_app.pdf
    • https://cdn.sqhk.co/woxemumi/wmRjfhh/south_african_latest_gospel_songs_2020.pdf
    • https://cdn.sqhk.co/mimofeto/hjihAPO/tagalog_nursery_rhymes_songs_with_lyrics_and_action.pdf
    • https://cdn.sqhk.co/kupibetefuko/diejjif/server_rack_cable_management_best_practices.pdf
    • https://tematurulabi.weebly.com/uploads/1/3/1/6/131606540/293d7a99e1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zerepuzuze/atrocity_archives.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d237.bin
270be44655e08995481df21943f7965349f9bba5adaf630c0dd120cb4766932a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD237 5200 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.