Malicious PDF — malware analysis report

Static analysis result for SHA-256 27dd68333ce401cf…

MALICIOUS

PDF

49.9 KB Created: 2020-08-07 18:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36b443a726ae30abeb2d8de4abbdea90 SHA-1: d42dee0762720d42dca0e866c2b4efc444f63d1a SHA-256: 27dd68333ce401cf8c5f56dee54bea08336e0b9c26eed832ba981940b897f9dd
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=al+quran+only+bangla+translation+pdf+free+download'. Another critical heuristic indicates a link farm structure, with 19 external PDF links, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of malicious redirector links and a link farm suggests the primary intent is to direct users to potentially harmful content.

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=al+quran+only+bangla+translation+pdf+free+download In PDF document text
    • http://files.blackpeakstudio.com/uploads/1/3/2/6/132695832/zigapu.pdfIn PDF document text
    • http://files.midwestfarmandpet.com/uploads/1/3/1/4/131407761/1333403.pdfIn PDF document text
    • http://files.selectatrackplayer.com/uploads/1/3/1/4/131438437/9d768467b27de.pdfIn PDF document text
    • http://files.teacakeandgaming.com/uploads/1/3/0/9/130969887/lovuvokubeke.pdfIn PDF document text
    • http://xumalek.son.10losttribes.com/uploads/1/3/2/6/132682327/natakube.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/1/0431/2875/0234/files/bsc_courses_list_in_tamilnadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/65741010943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5525/0598/files/wulixoserevobatodebizasin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0846/5828/files/rabojuwog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4429/1228/files/carer_allowance_centrelink_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5692/2777/files/maxiwidarit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/xbox_controller_keys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6620/4066/files/zuvugiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6738/3716/files/tesotovomeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8602/8708/files/present_perfect_for_since_just_already_yet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/kamenuvovuperiwabepomamus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/keleganojewapoxaxuwanip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7522/1142/files/89851749900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34803766861.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A5 5660 bytes
SHA-256: dd3bdb5e9d5c297ce5a099757a1e4859ebb33d9b613303a4cbc9dd109cb10a8c
font_01_sfnt_off00007505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7505 10712 bytes
SHA-256: 0ef5ff683ea3855fbce53a8b0978021cde904e5630b6d28a7d8723e4d2dc1f9d
font_02_sfnt_off000095c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C0 9688 bytes
SHA-256: 71fbb81ffa8cd1f505514f2328142b18ec344a4258cee0a3c67bb723f8d5ebb7