Malicious PDF — malware analysis report

Static analysis result for SHA-256 41fae36cb2c972b0…

MALICIOUS

PDF

48.8 KB Created: 2020-08-08 16:37:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eef4482ec6b41d61431229523dd55ba6 SHA-1: d02bba3c7411a43466165cf7f6c4c92b5a5d0747 SHA-256: 41fae36cb2c972b082f8bea718b4e53541a1d379518dd3837c6be9112f5c576e
202 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Gmat abstract reasoning test pdf' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'https://ttraff.cc/pify?keyword=gmat+abstract+reasoning+test+pdf', which is the primary indicator of malicious intent. The document also contains a large number of external PDF links, suggesting a link farm for SEO poisoning or traffic redirection. The presence of a visual download button further supports the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=gmat+abstract+reasoning+test+pdf In PDF document text
    • http://files.fairviewparkrec.com/uploads/1/3/0/7/130776151/paxumemawixe_renixezapulojo.pdfIn PDF document text
    • http://files.beyondourbox.org/uploads/1/3/0/7/130738892/4335081.pdfIn PDF document text
    • http://files.thebuddhasmedicine.com/uploads/1/3/0/7/130739024/bonurufikametesi.pdfIn PDF document text
    • http://files.breakalegman.com/uploads/1/3/1/4/131437413/bawupujewewo.pdfIn PDF document text
    • http://files.yoyojake.com/uploads/1/3/1/3/131379049/finekuzir-ganavulutosili.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/1/0431/7410/1149/files/77338532028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2069/8268/files/zinikufexof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6422/0058/files/47204961466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/23756907607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/31595473320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9537/4489/files/scope_statement_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/torakoliruvegilanoxazoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8094/1729/files/jimuborerebedimetunotulow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/36818019963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8557/5832/files/canon_eos_rebel_t2i_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7803/2296/files/laxezolokipegikusid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4880/3227/files/can_you_feel_the_love_tonight_piano_chords.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE4 5616 bytes
SHA-256: caa8dc8f0a40dbb8a38c167357088a8dd559d5a4a96844fa5805d43cf885e4b1
font_01_sfnt_off000092dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92DC 10304 bytes
SHA-256: 6a7878506db3cdfc57bbb5ae92b473767db6f84c16972abb9e579456cb5ad966