Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c4bfec3b9afeb39…

MALICIOUS

PDF

44.2 KB Created: 2020-08-05 08:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e491373f84bfa878e31ed6db38e1274a SHA-1: 081b720ccc99e198ec1e427499556831dfb992c2 SHA-256: 6c4bfec3b9afeb3955b73157d413068f4a8bf006fae9127a2cf01503b21142f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Corporate financial risk management pdf' and the malicious URL 'https://ttraff.com/pify?keyword=corporate+financial+risk+management+pdf'. This suggests a phishing or content-luring attack. No scripts were extracted, but the presence of numerous links points to an attempt to redirect the user 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=corporate+financial+risk+management+pdf In PDF document text
    • http://ziwafo.blissfamilyfurniture.com.au/uploads/1/3/0/8/130874493/ximop.pdfIn PDF document text
    • http://files.newsalembaptistky.com/uploads/1/3/2/6/132681698/pigotusu-lewutedibe.pdfIn PDF document text
    • http://pilagomi.dbayna.com/uploads/1/3/1/3/131384281/31d1069d18.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/1/0434/5459/5224/files/folagasamavetagil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7500/9686/files/25402844151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/vobuvafejepakapevafom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7520/6294/files/99874764198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8286/5058/files/78020300683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0879/3510/files/disujis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8394/7427/files/68498287784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/69110606230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/32433121922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4274895189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/vixesuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/nefabuwofuwomubixu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC2 5444 bytes
SHA-256: 7a3ad7eba3c4e520aa48b6a3f3a7e197aff34371d2171def499f532dfca4ad32
font_01_sfnt_off0000802d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x802D 10252 bytes
SHA-256: db6773d115989738018796cb2bdecf6f1d791ad6f35fcee94d3872e9d8f38b3d