Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d02f7ee70dc5c7…

MALICIOUS

PDF

67.8 KB Created: 2021-02-14 06:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 19866fb66a0dd06386ddf8bd7d459f3a SHA-1: 1b126bb124f08ed464f75c00a169d2c29aa026e6 SHA-256: 97d02f7ee70dc5c767b4776db07324e9d599eefbd927b4ccd290337d2144f7d3
156 Risk Score

Malware Insights

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

The PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagging it as a phishing or trojan. The presence of a large number of external links, including a link farm, suggests an attempt to redirect users to malicious sites. The embedded URLs and the PDF's structure indicate it's designed to distribute further malicious content or facilitate phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://maypoin.ru/aws?utm_term=chader+peera+di+song++mr+jatt PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453117/normal_5fcbdc9f1a1aa.pdfIn PDF document text
    • http://forsage.pw/final_fantasy_tactics_wotl_modsk21lc.pdfIn PDF document text
    • http://popularchoice.space/combining_like_terms_worksheet_8th_gradekd6bl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450427/normal_5fed4a01da7d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450154/normal_5fce4cb518d9e.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzixije/gGQRmjb/mummy_returns_streaming.pdfIn PDF document text
    • https://mafetoga.weebly.com/uploads/1/3/0/8/130874134/1d483f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477626/normal_5ff5ead86f2ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416654/normal_6005c5d6a5ec6.pdfIn PDF document text
    • https://zapamapat.weebly.com/uploads/1/3/0/7/130775391/2320342.pdfIn PDF document text
    • https://jadufebifov.weebly.com/uploads/1/3/4/6/134627690/af2d7b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402956/normal_600a291f39245.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462038/normal_5fd34e4f84647.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491686/normal_5fee137248279.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449992/normal_5ff15381e7455.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496584/normal_6010c48e99bc2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476751/normal_5feb5ad58b496.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422877/normal_5fcf428be3bdf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423454/normal_5fe1d90caf686.pdfIn PDF document text
    • https://zesoxomilojul.weebly.com/uploads/1/3/4/0/134018604/bononesu_sunolotupo.pdfIn PDF document text
    • http://zoneeuro.pro/52618865304gqv1r.pdfIn PDF document text
    • https://nepazumikad.weebly.com/uploads/1/3/5/9/135958915/vugireke.pdfIn PDF document text
    • http://xbet1.fun/letusukowedeloxilixeys60r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC792 5324 bytes
SHA-256: 5595cb9792c8e48489c599a1deea3544e28f8f317fe132d692324f87844885c1
font_01_sfnt_off0000d97d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD97D 11452 bytes
SHA-256: 58ad006141913a72ebc9ce7e401b33cca75960eb4092146b4d6a9f956091d2e9

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