Malicious PDF — malware analysis report

Static analysis result for SHA-256 9756e40c0f14edfa…

MALICIOUS

PDF

48.5 KB Created: 2020-08-15 01:36:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bdc0cf47b52af2083fe42812758f895 SHA-1: 560c079cb873209b37e40849f1259bdd6fcda9b6 SHA-256: 9756e40c0f14edfa60fb7f73c673c5a1b77a4d21fdd142c22483995d8ac52eb2
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the malicious URL. The presence of a 'Download Button' heuristic further supports a lure-based attack pattern.

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.com/pify?keyword=vidmate+hd+video+er+3+45+apk In PDF document text
    • http://bukube.mindls.com/uploads/1/3/1/4/131455734/6484912.pdfIn PDF document text
    • http://files.saintstephencca.com/uploads/1/3/1/6/131606733/vafexebesi_jixamuvax_lavuzivumugi.pdfIn PDF document text
    • http://kifamix.hiflos.com/uploads/1/3/1/4/131406390/wakozasera.pdfIn PDF document text
    • http://files.piratereaders.org/uploads/1/3/1/3/131398386/aea434663602.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/asset_management_information_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/new_super_mario_bros_wii_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8171/2287/files/bimenetonadadaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9203/4211/files/somuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3376/3746/files/zeganerelanimekudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/36760761333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/loxutiwijadewafulon.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6625 2952 bytes
SHA-256: 013fc9f45313cdddd5762e6694753e55f6a85ad2eec225b6e17fd140af1ee5c7
font_01_sfnt_off000070b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B4 5136 bytes
SHA-256: f3e816008e18548af0142c140edbf29c00dc055068390cc4c8fec9df04c5323e
font_02_sfnt_off00008238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8238 10876 bytes
SHA-256: 6c7aa9365c7ad039aa3f36f8946cd02f9fc52c8a64fd39bc73f3db1383dc37e2
font_03_sfnt_off0000a6a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A8 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176