Malicious PDF — malware analysis report

Static analysis result for SHA-256 e48a991da5ccb2d2…

MALICIOUS

PDF

37.1 KB Created: 2020-08-09 05:43:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5e3aea9433042910bfd18b241610154 SHA-1: 099833c6e4a16825a783b3295e9afec9d988dad1 SHA-256: e48a991da5ccb2d28d02c75f8bd11dd197fe3a2c9bd26453e48564ef4c066208
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, includes text suggesting it's a worksheet, a common lure. The presence of numerous external links, many hosted on Shopify, indicates a link farm strategy. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it's designed to redirect users to malicious infrastructure.

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=solve+and+graph+compound+inequalities+worksheet+pdf In PDF document text
    • http://vobazo.seoulvibephangan.com/uploads/1/3/1/4/131453541/likaj-towopu-dedoxulekipes-pelivavivav.pdfIn PDF document text
    • http://files.rosslynpublishers.com/uploads/1/3/0/8/130814295/8100438.pdfIn PDF document text
    • http://files.jansceramic.com/uploads/1/3/2/7/132740633/xowopa.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/1/0441/4259/2152/files/5412432669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/front_page_mag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2272/8866/files/wufoxavaxorozesujabuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7392/files/canopus_in_argos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/41812480964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9843/0876/files/pdf_auditoria_contabil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/takapisil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/bhagavad_gita_sadhak_sanjivani_english_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/dumilafabubevavirafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8694/6212/files/pavugigufugalikanatup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8157/8136/files/volegomapinubepego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3839/9912/files/610850838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/risokikimazuxugekozuzujax.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
🗂 Part of campaign: jansceramic.com 4 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51C3 6012 bytes
SHA-256: a326425b7924c643d22bc562985e38e528390134b00b923da33d81f7581c4188
font_01_sfnt_off00006625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6625 9676 bytes
SHA-256: 98e1f1e5c049549f0dc217c13279cbf81df95ffb007972148184c0294260a82c