Malicious PDF — malware analysis report

Static analysis result for SHA-256 220411cc613cb312…

MALICIOUS

PDF

35.3 KB Created: 2020-08-22 01:56:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0bc16653dd504f0a446234696a5c6eb1 SHA-1: 79143257d75da5ad4b47e3737273d5d3719adff4 SHA-256: 220411cc613cb3129e0e7c7e828a7733336eb0183334ca34788c97c7081b3777
242 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external PDF links, many hosted on cdn.shopify.com, which is indicative of a link farm. The document also contains a lure for remote support software, suggesting the intent is to trick the user into installing potentially unwanted or malicious remote access tools. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ammyy+admin+3.+5+software, which redirects to further content.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=ammyy+admin+3.+5+software In PDF document text
    • http://vizupivo.fishermanswifelife.com/uploads/1/3/1/6/131637881/1b3850ced1f20.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/1/0435/6302/4547/files/15397622933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/67416587104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7086/files/mebixuwuregadamemuwuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/jabokerinodopitap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/34926927621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65760981278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4738/files/3387016714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/6573/9173/files/3319042602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/69174773887.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C29 5524 bytes
SHA-256: 21b1ecaae3dbc6915150549c7e6b94a7cc1e1bbfe1d7aa211b7784b94e3f1de1
font_01_sfnt_off00005ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF9 9968 bytes
SHA-256: 90fb1564726f099f35cd9d16ace88ed4e7d4025ac9cf039897cb5abd12ca59e3

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