Malicious PDF — malware analysis report

Static analysis result for SHA-256 3101f6718e7908f2…

MALICIOUS

PDF

137.2 KB Created: 2020-08-03 00:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07933742ad1fb5a26cec77f5e9ad26e0 SHA-1: 7e5be53ef35db4c26a222796944390eb5bf84184 SHA-256: 3101f6718e7908f2fbb292f51e358fed7acbca1eb867a39153354d1296231bdc
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a prominent link that redirects to a malicious URL, disguised with a seemingly innocuous keyword. The presence of a 'download button' heuristic further supports the social engineering aspect. The document body, though heavily obfuscated, contains the same redirect URL, reinforcing the malicious intent. The large number of embedded links to external PDFs, many hosted on Shopify, suggests a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=when+does+magnemite+evolve In PDF document text
    • http://files.sccwga.org/uploads/1/3/1/6/131637218/3661207.pdfIn PDF document text
    • http://files.organicfanatic.com.au/uploads/1/3/0/7/130740174/603363.pdfIn PDF document text
    • http://files.lashombspomeranians.com/uploads/1/3/1/0/131070841/zuparas_musisizutizi_jejisovo.pdfIn PDF document text
    • http://files.klausiskoming.com/uploads/1/3/0/7/130776255/9854766.pdfIn PDF document text
    • http://files.chemisme.com/uploads/1/3/0/8/130874143/c15ac6b6710.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/6805/4949/files/segiwotazetonezujuluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/slendytubbies_2_multiplayer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8231/files/xeserisadugolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8999/3636/files/tikkun_korim_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4479/7600/files/6835971759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7344/5792/files/bejibopudalumonofew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/25734479566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0836/8545/files/bekisadifemamasibugirig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/25921888244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/39383558959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0077/4307/files/macbook_serial_number_lookup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7781/1867/files/nba_playoffs_bracket_2014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9671/0050/files/95339956464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/48124815367.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cdad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CDAD 1528 bytes
SHA-256: dac4ca97c95db3ffb4d4c2c3c7e66e39e5975192048cd85a1086d13c54190c12
font_01_sfnt_off0001d575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D575 5216 bytes
SHA-256: ba31f2b1169ecfe930bd938d6a0a5312ac5127eba3671e6a6d375ef251cf6759
font_02_sfnt_off0001e71f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E71F 15116 bytes
SHA-256: 155e7be3a906f76a56ef6c646bc09a9125c814d43804cb32717022205e9c0ce6