Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c1b31b0c3b75c55…

MALICIOUS

PDF

52.7 KB Created: 2020-08-07 01:21:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c623d2eb122eea144c0468d9119b6c5 SHA-1: dd13131a0d675fb294b49a08fdccf6f8aea8486f SHA-256: 9c1b31b0c3b75c55f54d5c48fec60e0b71b41267a67b656b83c04846cff71eec
234 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a phishing or scam attempt. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=senior+auditor+job+description+pdf', which is flagged as a malicious redirector. This suggests the document is designed to lure the user to click the link, likely leading to a malicious site or further payload.

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.cc/pify?keyword=senior+auditor+job+description+pdf.
  • 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.cc/pify?keyword=senior+auditor+job+description+pdf In PDF document text
    • http://files.eastbaymf.org/uploads/1/3/1/4/131453111/sobobatumug.pdfIn PDF document text
    • http://files.pineapplecoffeeandtea.com/uploads/1/3/0/7/130739744/2750509.pdfIn PDF document text
    • http://jobixepi.gremassagetherapy.com/uploads/1/3/1/3/131380429/162554.pdfIn PDF document text
    • http://files.kaptive8sports.com/uploads/1/3/0/8/130874296/jevebosaputafer.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/1/0431/7259/3832/files/32400155752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6955/4329/files/padubevedewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/foguwukoxumikevuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/pewizesoborofen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/87260298061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2635/7152/files/network_essentials_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6369/6805/files/python_convert_list_to_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/vernier_caliper_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/53228896996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4533/6726/files/pepoxinemefojofekageviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5005/7373/files/11269258117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/class_11_chemistry_ncert_book_download_in_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6366/3009/files/bhagavad_gita_in_malayalam_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6726/9532/files/47817759196.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 3

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_off00007ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD8 5320 bytes
SHA-256: 9145c3bddad01dd5712e00e76c803bc076bf900a32f716ffb8b21f8b8c39dd63
font_01_sfnt_off00008ce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE8 13280 bytes
SHA-256: f49827e5dfee098c854d9b62c3d708e7d17ad6b0576e4ef244778e2748665697
font_02_sfnt_off0000b73a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB73A 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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