Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ed52d96e12f0d0…

MALICIOUS

PDF

48.2 KB Created: 2020-08-04 00:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bde77c6c11cf1988233c71bfd4abaeb SHA-1: 6355e10ccfd5cb4db75408fed9a4ffb4562c7944 SHA-256: d6ed52d96e12f0d0e42f4cccaa478540248eb89244ddac0f9a28c3f160629102
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for 'current affairs in english pdf'. The PDF also contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation to increase visibility of malicious content. The primary malicious IOC is the redirector URL.

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.
  • 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.
  • 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=speedy+current+affairs+in+english+pdf In PDF document text
    • http://vijukixe.alinjarralabradors.com.au/uploads/1/3/2/7/132712207/5721175.pdfIn PDF document text
    • http://files.econspecialist.com/uploads/1/3/1/8/131872178/bivuz.pdfIn PDF document text
    • http://files.laurenmmcollins.com/uploads/1/3/1/4/131406036/nogixizapidib_zezovumubuxefeg_wevusafadusa.pdfIn PDF document text
    • http://files.ballenislessgc.com/uploads/1/3/0/7/130775229/savesono.pdfIn PDF document text
    • http://files.stbleagues.com/uploads/1/3/2/7/132712324/jojinefevakivuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0409/0777/files/22697241156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/67786967319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/linspace_in_matlab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/gobisewosuref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3417/1813/files/65857538550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/67145600712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0528/8349/files/15206360242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5663/6828/files/fuwosov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7528/6693/files/keturigubefove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/15127636000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/88176907347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3269/6216/files/43523833032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/luporanawagesifujap.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5663 5620 bytes
SHA-256: d31c86847f53b656414c7ac54d54c62efcf9e3648d2474d5b4ed011158c4f15b
font_01_sfnt_off00006986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6986 3720 bytes
SHA-256: 40ef96da86b6123d577d475be460de15c41b9ca7393a8e650be4e9942aa3c64b
font_02_sfnt_off000074e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E8 10428 bytes
SHA-256: 640f3d9ee069da0ccb7c2ef8c1d60b38ec40ac3ebdcc434b9a85967464549f63
font_03_sfnt_off000098af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98AF 6932 bytes
SHA-256: ab96a561ac7fc3d8aae209aa05ebb0283a455fcb6a5a513db6501f5d88859969