Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b0e64e6f29c8780…

MALICIOUS

PDF

41.5 KB Created: 2020-08-21 06:27:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9020e083abc7aca786108e14a3fb6ec2 SHA-1: c209c9c838fe2ed5d00f5cf4f540821c778a62ce SHA-256: 3b0e64e6f29c878092480587959d2730281f1e7794b061ad48938eaa26570123
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm with numerous external links, many of which point to potentially malicious or unknown domains. One critical heuristic identified a direct link to a known malicious redirector, 'ttraff.cc', which is used to obscure the final destination. The document body, though partially corrupted, contains text related to interview questions and answers, suggesting a lure to entice users to click the malicious links. The presence of a link farm and a malicious redirector indicates an attempt to distribute further malicious content or phish users.

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.cc/pify?keyword=customer+support+manager+interview+questions+and+answers In PDF document text
    • http://pobis.randischneweiss.com/uploads/1/3/1/4/131437949/pesegiwomo.pdfIn PDF document text
    • http://files.tankuanaw.com/uploads/1/3/1/3/131379612/eda4253071.pdfIn PDF document text
    • http://files.stevebishop.net/uploads/1/3/0/7/130740521/9569746.pdfIn PDF document text
    • http://winat.kellysserenityhouseinc.com/uploads/1/3/2/6/132680981/df7829f43.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/1/0435/4772/1892/files/wastewater_management_introduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/dewenonimutijokarisewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/gta_sas_psp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6017/3717/files/performance_standards_for_antimicrobial_susceptibility_testing_27th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8604/4572/files/resident_evil_3_nemesis_game_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5035/3318/files/18419046050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/zexufubuwikusop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/retegatoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9348/1885/files/we_are_all_cannibals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/zativigopokuxox.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_off000063f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F0 5428 bytes
SHA-256: b28836eb1b532236513921235cf85b3b3bfe80c63ac7467d1bf99a0f91050cc7
font_01_sfnt_off0000765b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765B 10092 bytes
SHA-256: a4813cd67a7a5e52666f07b0da73f20b30c119984a64be11eb46651e8ff1c69e

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