Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa7513a53a794a0e…

MALICIOUS

PDF

39.5 KB Created: 2020-08-25 04:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c8cad4ee635098f3c999dd69340bfb2 SHA-1: e1eff7805b8461695422d6a56741de8e12a80f57 SHA-256: aa7513a53a794a0e00bc888d39e6ef1057aea19e6fe253d900942a5eaa10fc5e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=amman+songs+tamil+ringtone'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of the malicious redirector URL suggests the document's primary purpose is to redirect the user to a potentially harmful site.

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=amman+songs+tamil+ringtone In PDF document text
    • http://files.hiseyeshonduras.com/uploads/1/3/0/7/130740517/2061687.pdfIn PDF document text
    • http://pezim.fexasas.com/uploads/1/3/0/8/130873851/votubisefopizoxorak.pdfIn PDF document text
    • http://files.wildwellnessguide.com/uploads/1/3/1/6/131607565/6339750.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/1/0462/6762/9730/files/79506876766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7843/files/45362017532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/71871931421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2696/4903/files/homestead_exemption_fulton_county.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5865/8456/files/dirafelotabutojonudowomej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6732/6110/files/derilezexidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/28581190517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/11225555570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3538/9086/files/xadegukaxifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8181/7505/files/body_language_joe_navarro.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4778 4996 bytes
SHA-256: 899202e27270852e14da5e7b3d88afa2d8a30a176cf5a18287f00cd389107b9a
font_01_sfnt_off0000584d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x584D 8692 bytes
SHA-256: 45703deaa79192b3ab9bd121eef9562ce49e65309d48bb2e73a8401e7025aca6
font_02_sfnt_off00007128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7128 9384 bytes
SHA-256: 44af26c7a2d6a26d703aaad5719a5e7b7a0de4495594273a229b066caf638755

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