Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0dc8c116904591f…

MALICIOUS

PDF

57.4 KB Created: 2020-07-29 02:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bab663097380efc8f2e7e13aafcdf751 SHA-1: 6e2a7df7dbe1347d8d2d97501d9d1199f58e93dc SHA-256: a0dc8c116904591f3db427981bf45b204daae4f2d469ee6e092d746d21d86a21
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=rank+function+in+excel+pdf'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of external PDF links, characteristic of a link farm, and a heuristic indicating a download button lure. No scripts were extracted from this sample.

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.cc/pify?keyword=rank+function+in+excel+pdf In PDF document text
    • http://files.mellamarministries.com/uploads/1/3/1/4/131437822/dexapikurip.pdfIn PDF document text
    • http://files.anna-needlepoint-pearson.com/uploads/1/3/1/3/131380107/novimuwigedud_kapowixuvakivo_gonanafaxupol_tunoribevu.pdfIn PDF document text
    • http://files.healthyshmealthy.com/uploads/1/3/1/6/131607053/9250466.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/1/0429/7038/2490/files/72528834011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2351/files/65175241868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8891/1267/files/51671906579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1704/3111/files/3600796314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5730/7039/files/79986176864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91146339154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2449/0397/files/26188038133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/2181796853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5235/2156/files/bezifinanavolefev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/2059108886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3482/1287/files/leturapufolisowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7212/7125/files/tuzor.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 5

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_off00009cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CB3 4896 bytes
SHA-256: 684c7ef75615fc2c66084b1162a98205c3f44d7ae0ce8f7b5e7d6e655cd3f368
font_01_sfnt_off0000ad77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD77 13436 bytes
SHA-256: 7422867622b993877fbb45f2de68f639b6bd8ba1d39d643b50a6bc3f860f7a1b

Open this report in the interactive analyzer, or submit your own file for analysis.