Malicious PDF — malware analysis report

Static analysis result for SHA-256 53da06da87488225…

MALICIOUS

PDF

41.3 KB Created: 2020-08-17 05:38:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb56200379e39c549985613035495fb5 SHA-1: 8f477052b9b292a87a3c1c8963541ff93952272e SHA-256: 53da06da874882257f59e5fcfe188b29f9ad82654f13b57b9aba5837263b6b7e
242 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link and a large number of links to external PDFs, suggesting a link farm for SEO poisoning. The document body mentions 'Gta vice city cheat apk free' and includes a call-to-action phrase, indicating a lure to download a potentially malicious file. The presence of a password archive lure heuristic suggests the downloaded content might be encrypted. The primary malicious URL identified is ttraff.ru, which redirects to a page offering a game cheat download.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/pify?keyword=gta+vice+city+cheat+apk+free In PDF document text
    • http://files.amorajstudios.com/uploads/1/3/0/7/130739069/viwak-tikowex.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/1/0438/8824/6936/files/gorunopuvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9369/5395/files/vetatiwegemozax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4346/3069/files/14443060797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/mukalapesemimulowipibut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/24936330463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8999/3635/files/cursive_calligraphy_fonts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/73324044310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/15274232368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6481/9874/files/bakeles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4894/4284/files/95027370835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4696/8218/files/foxixagegowepuzari.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 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F6 5148 bytes
SHA-256: 0ea2055c8770f503bbf489a25fd5f35a2ed1832629aac44a818a0385906fa8ec
font_01_sfnt_off0000748b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x748B 10412 bytes
SHA-256: 832e7c317303b545caa26fb63b96a530babdf13637967cce4b522b99886384d2

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