Malicious PDF — malware analysis report

Static analysis result for SHA-256 e677aeb506d6f4fe…

MALICIOUS

PDF

61.4 KB Created: 2020-08-08 16:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f43bf0b5730bc15bfeff81de7e6c6862 SHA-1: 96658e59dbc7920a874b3c4142ae48ae34e05de1 SHA-256: e677aeb506d6f4feae4bf20f5e85961e202c8273fd8715000842bc6fb5d7bc20
202 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating an attempt to lure users to malicious sites. The document body, though heavily obfuscated, contains a URL that points to a redirector. The presence of numerous external PDF links suggests a SEO-based lure to attract victims. The primary malicious IOC is the redirector URL.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/pify?keyword=catalan+independence+bid+pdf In PDF document text
    • http://files.tallthingsconsidered.com/uploads/1/3/1/3/131384136/1724348.pdfIn PDF document text
    • http://meniloz.amycoddington.com/uploads/1/3/2/7/132710779/5217316.pdfIn PDF document text
    • http://ruzavet.hopecounselors.com/uploads/1/3/2/3/132303382/2466027.pdfIn PDF document text
    • http://files.carlaposenjak.com/uploads/1/3/0/7/130774962/a6fccdd.pdfIn PDF document text
    • http://files.medinafamilychiro.com/uploads/1/3/0/8/130813755/f7a6a594426d44.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/1/0450/1287/7462/files/678_786_3280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2033/files/after_effects_cs5_pluggins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8183/2350/files/5261083887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/difakonomufodevorogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5181/files/nolajerexufofiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/baxogegelebifarobami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/brother_hl-_2240_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/baguminitojagomod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4082/3701/files/curso_de_ingles_b1_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fusuzirosaf.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_off0000aefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEFE 4920 bytes
SHA-256: f1b34af0f334da9b4b629df56f533a3b923cf8640335649f919c88738f0336b3
font_01_sfnt_off0000bfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC8 13348 bytes
SHA-256: 351bd87e11699d99877e54d3fb25e39d16290ab3b20d9ae47628426ca8c82063

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