Malicious PDF — malware analysis report

Static analysis result for SHA-256 378fcab379647096…

MALICIOUS

PDF

44.2 KB Created: 2020-08-06 04:04:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33436c55ab761c1fbcc492d2a91a1bf8 SHA-1: 39f83793809ed81e865f3251c7f5996030b9acea SHA-256: 378fcab37964709605892f57e6d4b2433781cfe93ea549e934558180600879bc
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/pify?keyword=amoebiasis+adalah+pdf as malicious. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to URLs, reinforcing the redirection attempt. The presence of numerous external PDF links suggests a link farm or content distribution network used to host further malicious content.

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.com/pify?keyword=amoebiasis+adalah+pdf In PDF document text
    • http://pibiv.parkhillkindergarten.com/uploads/1/3/0/7/130738731/rufusuduxibisejafu.pdfIn PDF document text
    • http://files.cnhcep.com/uploads/1/3/1/4/131454986/123141.pdfIn PDF document text
    • http://files.pvmsgeography.com/uploads/1/3/1/6/131637362/pamewaxagajuf-pajusuw.pdfIn PDF document text
    • http://files.labsavvy.org/uploads/1/3/2/6/132695746/novopokozi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/8757937677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/24044428036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9778/3458/files/pugotefunefemanajofijesoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7079/0558/files/14230176788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/64514500495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/13723977060.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/1/0431/3314/1149/files/sudizimulel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/91019781664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2465/3224/files/tofif.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6224 4916 bytes
SHA-256: 2de18ddfac5af94dcaf18438fc2ed1e97e437495aa95f018c7c53c9fd396f593
font_01_sfnt_off000072d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D0 10284 bytes
SHA-256: ec26a94b79310b6bd04a3cfb031b98effec9ba31ae27545848c88e3865000458
font_02_sfnt_off000095ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95EC 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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