Malicious PDF — malware analysis report

Static analysis result for SHA-256 890564ecf9f70c84…

MALICIOUS

PDF

67.5 KB Created: 2020-08-15 18:45:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d82d066964d9931d2f0292750f644953 SHA-1: 35211c64167ace69e6eda78aa308b9b398cb6f8d SHA-256: 890564ecf9f70c84a706cacd9d8d1a454627edea666b5a9b859c0fde5b6aa6c1
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link disguised as a game answer, which redirects to a malicious URL. This is a common lure for phishing or malware distribution. The presence of a link farm and a redirector suggests an attempt to obscure the final malicious destination and potentially distribute further payloads. The ML classifier also strongly indicated maliciousness.

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.
  • 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
  • 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.cc/pify?keyword=brain+out+game+level+22+answer In PDF document text
    • http://mixedipev.teamacorntriathlonclub.org/uploads/1/3/0/7/130740450/675391c5.pdfIn PDF document text
    • http://files.innerbeanaugusta.com/uploads/1/3/2/6/132695881/lunubawizilojilezo.pdfIn PDF document text
    • http://kejufifiw.windows8cardgames.com/uploads/1/3/1/6/131607240/9541941.pdfIn PDF document text
    • http://files.amores-project.eu/uploads/1/3/1/3/131381078/9798463.pdfIn PDF document text
    • http://zosolida.kkpkp-pune.org/uploads/1/3/0/7/130776208/9214434.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/1/0432/9324/5590/files/zosasedezefubisuluzaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0428/1511/files/rutewagigega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2801/3475/files/77826711769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/cookie_clicker_cursor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9592/5671/files/keratin_structure_and_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/95882625178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/36872218439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/70709730653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6593/1936/files/jaban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/20446355805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9808/7328/files/gajugunojeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/2008_volkswagen_eos_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/historical_timeline_template_google_slides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1316/8542/files/sijodirinefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3511/5176/files/tetovuxufupifogeja.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off0000b4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4C1 5336 bytes
SHA-256: 7de2ff06bf71290c7ae7ca84230269f388929f605d0b07947eb6f923c322e9f7
font_01_sfnt_off0000c6ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EC 10148 bytes
SHA-256: e751647ada12c58190c0aa7d31565e72639f06db2d6da025994321b2bd6ebea4
font_02_sfnt_off0000e9ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9FF 16440 bytes
SHA-256: 7fa51e74bbdb2151a285290adb2bfc40a7d2253a62bf44421e2200841c878d8b

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