Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8be3ddc4ffed47f…

MALICIOUS

PDF

51.6 KB Created: 2020-08-07 15:29:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fcb3dbe7632635d602612df3246a9d28 SHA-1: c074a17a80ae6e19fcd35cf8e388ed2a3e83980b SHA-256: b8be3ddc4ffed47fb979ae713d507dc19110bf40b853a30b954985e27d4623b5
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to what appears to be a link farm designed to improve search engine rankings. One of these links, 'https://ttraff.cc/pify?keyword=j+type+anchor+bolts+specifications+pdf', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=j+type+anchor+bolts+specifications+pdf In PDF document text
    • http://files.t3chlan3.com/uploads/1/3/0/9/130969059/7253293.pdfIn PDF document text
    • http://files.personalsafetyandpistoltraining.com/uploads/1/3/0/7/130775848/sofogemixunakutose.pdfIn PDF document text
    • http://files.maryimmaculategallatin.org/uploads/1/3/1/4/131437471/9235714.pdfIn PDF document text
    • http://files.chapelofprayerbaptist.org/uploads/1/3/1/8/131856158/6874744.pdfIn PDF document text
    • http://vixuxe.mycosmeticchronicles.com/uploads/1/3/0/7/130775350/9314261.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/1/0428/4933/7500/files/lajoladiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/xuxilogegalapazizozolura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96512150342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/75984346117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8600/2838/files/zekuwabozitamina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6308/3162/files/wulejulomiboxuzipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0726/1341/files/37749641101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/26865723591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/menupuvisapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/47280741082.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 7

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_off00008c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C38 5472 bytes
SHA-256: 622c2eb4a63e1f547b49594c6d264cca5f8d558016dbb0c3fa9f7775345f66cc
font_01_sfnt_off00009ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECE 10180 bytes
SHA-256: d3bef6673799cf3218b0f76f869782c0385231961edec36c23247b3e0a984e26

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