Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef57c150557ed3a7…

MALICIOUS

PDF

43.8 KB Created: 2020-08-24 05:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69fa6d44ba82be6a68a1fc04ecd4f708 SHA-1: 72ccdc9f3dc50a486b9ee46f5a885de131385972 SHA-256: ef57c150557ed3a72552382a0fcf5b62935718ba4bb15aeaf37ba435e74b1590
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 'https://ttraff.cc/pify?keyword=bobol+wifi+wpa+dengan+android+tanpa+root'. This URL is likely used to redirect users to a phishing page or download further malicious content. The document also contains a large number of embedded links, many hosted on cdn.shopify.com, which is flagged as a PDF SEO link farm. No scripts were extracted from this sample.

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.cc/pify?keyword=bobol+wifi+wpa+dengan+android+tanpa+root In PDF document text
    • http://files.countrynmoresiouxfalls.com/uploads/1/3/0/7/130740148/mesogupurukafa-fogofijibe-muxatapew-nakizupedopew.pdfIn PDF document text
    • http://sagupetet.hinterlandbaptistchurch.com/uploads/1/3/1/4/131408061/zixubakonakawiw.pdfIn PDF document text
    • http://files.elizabethtownchristianacademy.org/uploads/1/3/1/4/131437615/83090b8d0c.pdfIn PDF document text
    • http://bafilute.pbonnafant.com/uploads/1/3/2/6/132696434/dugolelowekafukuw.pdfIn PDF document text
    • http://files.judygrillo.com/uploads/1/3/1/3/131383045/gotepodavubunelixur.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/1/0437/9171/2405/files/sap_bods_study_material.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4234/3833/files/bodoland_lottery_result.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2656/0677/files/90512394399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/basic_proportionality_theorem_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/xigovepubuxaletemesojexok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8701/0728/files/download_omarion_post_to_be.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1656/0550/files/58256964561.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 6

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_off00006cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC5 5312 bytes
SHA-256: 827477eb8ebf423b17fc6e849206b00e46b54e40ec4dd73031b7737414fe0a3c
font_01_sfnt_off00007ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF0 10476 bytes
SHA-256: 6c009257285d77123006f341a6d18d7c71e8d5b07d2fff9debad7d0e6d31e977

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