Malicious PDF — malware analysis report

Static analysis result for SHA-256 547e661ddf0d96c6…

MALICIOUS

PDF

75.2 KB Created: 2020-08-20 22:18:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2067b7c6fff81ea7a4d8bc4f78bb2476 SHA-1: 8c6d0a2cec48b32c80db8bd2a27ddad04b78f6cc SHA-256: 547e661ddf0d96c64adb7bc179bd1b3c999ab394e4b67e6ff94045c051ac8877
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the URL that is also present in the heuristic firing and the embedded link, suggesting a lure to download a file. No scripts were extracted from this sample.

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.cc/pify?keyword=types+of+building+automation+systems+pdf In PDF document text
    • http://files.ambassadormoris.com/uploads/1/3/1/4/131454012/5acce049f6.pdfIn PDF document text
    • http://tefixe.lasaniarestaurant.com/uploads/1/3/1/6/131606289/sawimuxerojimevurel.pdfIn PDF document text
    • http://files.decaturumc.com/uploads/1/3/0/7/130776423/xakelumowuwomok.pdfIn PDF document text
    • http://files.chicagocomics.com/uploads/1/3/0/7/130775387/posikajezi_dokuwova.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/1/0437/6995/4456/files/alejandra_pizarnik_diario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2991/4012/files/revista_atualidades_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/misudugomurari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/luzifetubaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5116/2523/files/abu_hamid_al_ghazali_livre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/30816443169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7157/0069/files/82129951132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3974/files/valotalavemanufadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/cinema_hd_app_android.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 4

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_off0000e928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE928 5456 bytes
SHA-256: d78f070a74b50c523aad8f600bb0cd89c5cbd396007d95c88c652211fe6edb46
font_01_sfnt_off0000fbaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAF 10520 bytes
SHA-256: 3b7298b6ab8aa0523eab1d4d1c9eb526b9f73a56d4072ad1cc6e43168426a056

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