Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d401783d8339dc3…

MALICIOUS

PDF

42.7 KB Created: 2020-08-25 08:20:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f5a45c42b81a1c39c108ec44ff2abed SHA-1: f55db3312e64d75005ca240020156b55960da8dd SHA-256: 6d401783d8339dc3f2abb28f5d058b83e820d1220208f689aaf20c9726c8ba0c
162 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and other URLs that appear to be part of a link farm. This suggests the primary purpose is to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://ttraff.cc/pify?keyword=bollywood+songs++mp4+hd In PDF document text
    • http://bunav.annastump.com/uploads/1/3/2/6/132680955/565479.pdfIn PDF document text
    • http://files.peterandrewsoam.com/uploads/1/3/1/4/131438477/8739ee6a9.pdfIn PDF document text
    • http://gavurimuv.sig10-cleaning-decontamination.net/uploads/1/3/1/4/131453501/73f0f3310d.pdfIn PDF document text
    • http://files.pitch2script.com/uploads/1/3/0/9/130969855/tijitanu.pdfIn PDF document text
    • http://galex.allaboutyoumedia.com/uploads/1/3/1/3/131398091/pisulanikos_gewosomabela_numevamoxumeteb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9973/files/nizam_al_mulk_book_of_government.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/tejizifixepemonatisomoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9559/5938/files/fadisaron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9020/6115/files/57051254696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/vijafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kofuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/poe_prophecy_wand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0678/files/72440867027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/mojobozanogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gadawatozuwagujezudoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/44738185880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6737/5777/files/jizewi.pdfIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA5 5400 bytes
SHA-256: c3db6a7955bf1201759fb11204a2a28765ba8660d913113c00174a5e4c238c01
font_01_sfnt_off00006efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFD 15412 bytes
SHA-256: e9fbed7e953fc91539413fbeece798d821ed3c306b781e0aeeaa3c416519818f

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