Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba28e4fb0c493d3…

MALICIOUS

PDF

36.2 KB Created: 2020-08-21 16:33:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1078bd9d915175b693ffd528fe3f3499 SHA-1: b22119b90cd1507ccc7956192236bff16d01e02e SHA-256: aba28e4fb0c493d37e14c0b9d75c85871da65b756dd1f5f8fdd35301cb728f23
152 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. This domain is used as a redirector, likely to deliver a secondary payload or phish for credentials. The document body text, while appearing benign, contains the malicious URL, suggesting a lure to trick users into clicking. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=simple+chat+application+in+android+github
    • http://files.malahidelions.com/uploads/1/3/0/7/130740255/7c26e.pdf
    • http://zumago.wrhs65.net/uploads/1/3/1/8/131856713/jolirokajumamir-dajoxom.pdf
    • http://seriwe.huffmansflowersofthefield.com/uploads/1/3/0/7/130739892/jopegutoro.pdf
    • http://mivupiv.sprucecafe.com/uploads/1/3/1/4/131438044/kazadivufagibeme.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/ligoziwekedurazobikati.pdf
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/numerologia_angelical_libro.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/13344422383.pdf
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/xesoxepawetif.pdf
    • https://cdn.shopify.com/s/files/1/0437/0114/1657/files/25271684926.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4515/files/marathi_calligraphy_style_font_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/vatexanesafipesarukorat.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/4_digit_subtraction_with_borrowing_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/utmost_synonym_formal.pdf
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/gikibetuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/4321/6789/files/jibikakugumofe.pdf
    • https://cdn.shopify.com/s/files/1/0439/7550/8126/files/brkert_6014.pdf
    • https://cdn.shopify.com/s/files/1/0435/3831/7471/files/spectrophotometric_experiment_lab_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/9162/3077/files/aprendizaje_significativo_en_ingles.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e92.bin
9273294d62f446e1e9df2b51e71b9c23915a9862aaa37194244fae5f5ab00c8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E92 5552 bytes
font_01_sfnt_off00006132.bin
e1a620237f0b1bad8d5dacb499d8dfafc6a38eaad51e493a68c677e150071b4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6132 10032 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.