Malicious PDF — malware analysis report

Static analysis result for SHA-256 a11153039cbfc563…

MALICIOUS

PDF

47.8 KB Created: 2020-08-17 16:31:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb856d729d19a690a19911e1a92afe70 SHA-1: 3dc97b46b772e0d8eeac13e53efbf7446910e2ba SHA-256: a11153039cbfc5637194bd1efab3a6315eec0297e83c5cf83f854c393004d601
294 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious intent, including links to a known redirector and a link farm. The document body, though heavily obfuscated, contains URLs that are likely part of a phishing or malware distribution scheme. The presence of MFA and password archive lures suggests credential harvesting or a multi-stage attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=arcgis+server+10.+7 In PDF document text
    • http://files.holisticjoy.ca/uploads/1/3/1/4/131437515/jogik-zetasawabesuxun-bimekufafidog-vejosuzigedixax.pdfIn PDF document text
    • http://files.pestcontrolvegasnv.com/uploads/1/3/0/8/130874566/jezatopogewa.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/1/0432/0657/4238/files/45596148385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4643/6006/files/bhagavad_gita_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2126/3271/files/bilisovuvekukixane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/monaturofufesovuxodumavuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/nomasegetiperobek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/44491115982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6209/8085/files/fofadagaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/35167229030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1316/8542/files/vuniwalowijivisumobuxekit.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 2

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_off00007f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F19 5080 bytes
SHA-256: 6d55eeeda52b979daa5f88ab9cb359c4be662a6846050518f14c52dab7b1be38
font_01_sfnt_off00009094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9094 10144 bytes
SHA-256: 9dd802359cd8e45956535210a5463fca5cf52dc1a0977041f86b2b5aec38fa46

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