Malicious PDF — malware analysis report

Static analysis result for SHA-256 977f86ad6f7fd578…

MALICIOUS

PDF

42.2 KB Created: 2020-08-02 07:55:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96c148ad613c0a10b9a75f901098d649 SHA-1: d3db722ff10ee9a084f031f536186f61216688bc SHA-256: 977f86ad6f7fd578b8135685c6318061da78023c855c92a6bc19d438907bcd77
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure related to a 'Bosch 500 series washer manual' and embeds multiple links. One critical heuristic indicates a malicious redirector link pointing to 'ttraff.com', which is designed to lead users to malicious content. The presence of a 'Visible LOLBin command execution instruction' heuristic suggests that the document may also contain embedded commands or instructions to execute malicious code, likely through PowerShell or similar tools, to further the attack. The document body itself is heavily obfuscated but contains the malicious URL.

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=bosch+500+series+washer+manual In PDF document text
    • http://files.stbartswednesbury.com/uploads/1/3/1/3/131379329/sutujefozasid.pdfIn PDF document text
    • http://files.eliteculinarychef.com/uploads/1/3/1/8/131858916/9241938.pdfIn PDF document text
    • http://files.soundrelaxationcentre.com/uploads/1/3/1/0/131070786/efc73b5d67b34c4.pdfIn PDF document text
    • http://files.amaxdesigns.com/uploads/1/3/0/7/130739444/numupijorisawatemole.pdfIn PDF document text
    • http://files.bellemaisonmassage.co.uk/uploads/1/3/1/0/131070289/zevokigad-tujelab-jiwomutejapatis.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/1/0437/0222/3013/files/rekugufolawofuxuwefil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9147/6133/files/get_dell_service_tag_cmd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4707/4464/files/campbell_biology_10th_edition_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0427/5997/9174/files/vawiliviveloxesetazig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1523/3948/files/sofeferuxagobiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/tevipofawifekevoxigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7162/6659/files/17569245999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7107/7542/files/98788412578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4178/2950/files/wexaxopuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapitawaluzosamorexub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7198/7098/files/connors_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4228/1371/files/66195099969.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
    • https://cdn.shopify.com/s/files/1/0436/4707/4464/filIn macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

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_off00005d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D76 5448 bytes
SHA-256: 355ca932c47110145b64e11e67dc88c8573e958cbcba2122e38ddc939bdefb21
font_01_sfnt_off00006fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEC 13832 bytes
SHA-256: 110acd037646028a9c90422152b18e5f4b78274903e9e2213c17cd5874cd44fc

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