Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d6919f524dda39…

MALICIOUS

PDF

43.1 KB Created: 2020-08-05 01:28:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ade234a1a4b2b40aa2c18ae6754972d SHA-1: 2e278b73cf3f651d18de5aecadab0cf0a972649b SHA-256: c0d6919f524dda3934845eae6cb07fc29ea641fe040f2f03f08fb658ca5891f3
120 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic to attract victims. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact nature of the payload beyond the initial redirection.

Heuristics 3

  • 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.
  • 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=basic+electronics+book+bangla+pdf
    • http://files.esa-ohio.org/uploads/1/3/0/9/130969834/f7fe49522.pdf
    • http://files.robwms.com/uploads/1/3/1/3/131380008/rabito-zageguwiw.pdf
    • http://files.allsaintssjvcomputerlab.com/uploads/1/3/2/7/132741225/wexifudapixovuneso.pdf
    • http://files.thedesigncollectivegroup.com/uploads/1/3/0/9/130969645/1228871.pdf
    • http://files.lowlandslocalization.com/uploads/1/3/2/7/132741352/minakado_potoxuxopexe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdf
    • https://cdn.shopify.com/s/files/1/0431/5696/3479/files/newixovinibinovisigaranim.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/behavioral_design_patterns.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/janijidasabaxujomilodudi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0635/2804/files/99218711346.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/sujirujodilobo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/gadavomunijijatuzavifek.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/arena_class_tier_list_ungoro.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/95076993066.pdf
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/malwarebytes_1._75_filehorse.pdf
    • https://cdn.shopify.com/s/files/1/0434/5276/0224/files/80478504306.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_off00006665.bin
a12f33d7a6df93326858894a8472270666b1f14feebd66bef38afeea1763e913		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6665 5576 bytes
font_01_sfnt_off0000796a.bin
3fe41364bad35e262ebe9570b65a98d2cfdc4f12a2d933e54246feddf26d74c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x796A 12012 bytes

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