Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f887d55b82e61a…

MALICIOUS

PDF

46.2 KB Created: 2020-08-22 09:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 567b960a94ed19b4a73e53ee248d8f1f SHA-1: dba1aebdbaea918a7b02d427f63ddcadf7059209 SHA-256: d9f887d55b82e61a134a3728c6cc3c858a17e39d689ad2ea1f48e759373457f0
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL and a secondary link to 'cdn.shopify.com', which is part of a link farm. The presence of a 'download button' heuristic further suggests a lure to trick the user into clicking the malicious link. The primary malicious URL is likely used to redirect users to a phishing site or download further malware.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=blackberry+10.+3.+1+stl100-+1+autoloader In PDF document text
    • http://files.gccvista.com/uploads/1/3/1/4/131407709/veferir.pdfIn PDF document text
    • http://bagonuded.littlecharliewheeler.com/uploads/1/3/2/3/132303099/c954d7653.pdfIn PDF document text
    • http://files.redfoxteas.com/uploads/1/3/0/8/130814346/sepitibijum.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/1/0430/7091/4717/files/92972264042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/49218196806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2217/7688/files/besefakewaxafetaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/rocker_anarcho_syndicalism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4764/9429/files/nijupotadametenudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/schedule_b_form_941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/rubuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/193343515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7440/5020/files/muwisezofazux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6085/3912/files/zipodexovene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2827/4587/files/zopok.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: castlehillchocolate.com 5 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6549 5436 bytes
SHA-256: 528ab64c160056dc3be5a3034f3c5387acb8fa38430cf583f509ce03719fd657
font_01_sfnt_off000077e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E8 10500 bytes
SHA-256: e595751b52a74d6afd7281b3215894d34b52da1424b457447aecf0d282607724
font_02_sfnt_off00009be0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BE0 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333