Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c2c16124ce037c…

MALICIOUS

PDF

51.0 KB Created: 2020-08-08 11:17:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3ffa1de510e706d8ccbecf6c9b7dee7 SHA-1: 39f9a7348c2d5e53afd005073937fa38ec4877a6 SHA-256: f0c2c16124ce037cdacedaf6eee1e92a27a5e8a9a71c36d2e20426b629082b89
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or SEO poisoning tactic designed to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector URL is the primary indicator of compromise.

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=android+programming+tutorialspoint+pdf In PDF document text
    • http://files.vickijansma.com/uploads/1/3/0/7/130775484/vidivawivegujo.pdfIn PDF document text
    • http://files.dragonfly-books.org/uploads/1/3/0/9/130969461/fupifotodamujaveraz.pdfIn PDF document text
    • http://fobuw.compelation.co.uk/uploads/1/3/1/3/131383613/roduwolaxonana_perumexizegu.pdfIn PDF document text
    • http://files.tlakelabs.com/uploads/1/3/0/7/130739165/retuvor-veroda-jixekerura-wuxokejo.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/1/0433/0687/7080/files/rexalomofovuwazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4861/9419/files/lithium_iron_phosphate_batteries.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8419/3696/files/tiroxujopumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/vakibefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/xosemazirapab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/74929500913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6440/1818/files/tuxubaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/cedula_de_identidad_ecuador.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13170590630.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 8

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_off00007c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C21 5112 bytes
SHA-256: 60760aef0d4f61bce340672238403615fab13b535a154dd7ec55290b90c68c16
font_01_sfnt_off00008d5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5F 10352 bytes
SHA-256: 2819e692cebc7ddc4d2d8d6a8986e86670c45fe2ad85e7ea9304c93d1cc6fdae
font_02_sfnt_off0000b0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0B9 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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