Malicious PDF — malware analysis report

Static analysis result for SHA-256 222d0719d0bf5a85…

MALICIOUS

PDF

62.6 KB Created: 2020-08-23 20:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4004e0148fbb767ee9826782bd3c4a4a SHA-1: 6a4112d08b4000afdd719cf563c25fa7e097bf21 SHA-256: 222d0719d0bf5a85055a98f268e466e1a208ef7bd6f78cbf79d6bfccd55da585
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This URL redirects to a Shopify-hosted PDF, which likely serves as a further lure or a staging point for malicious content. The presence of numerous external links suggests a link farm or SEO poisoning tactic to increase visibility.

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.com/pify?keyword=automata+theory+computability+and+formal+language+pdf
    • http://files.newaplusenvironmentalrestoration.com/uploads/1/3/1/4/131406440/jijurumofus-vafedaduveda-jirijapi-mupabetisi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/69217308553.pdf
    • https://cdn.shopify.com/s/files/1/0430/3768/7962/files/borigosazazasazev.pdf
    • https://cdn.shopify.com/s/files/1/0432/5674/2046/files/navasamir.pdf
    • https://cdn.shopify.com/s/files/1/0438/8831/2488/files/simple_freeze_frame_premiere_pro_templates.pdf
    • https://cdn.shopify.com/s/files/1/0434/5046/6454/files/6632245317.pdf
    • https://cdn.shopify.com/s/files/1/0428/4012/9692/files/blank_code_page.pdf
    • https://cdn.shopify.com/s/files/1/0438/4171/6389/files/codex_calixtinus_completo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/13629692850.pdf
    • https://cdn.shopify.com/s/files/1/0430/0524/7647/files/11018092380.pdf
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/ayurveda_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/esc_guidelines_cardiovascular_disease_pregnancy.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009435.bin
d7a37a49fd578c3a139174a0317139211f319d5fe115b7359c6df610798a0f7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9435 5624 bytes
font_01_sfnt_off0000a730.bin
e897c1685dfd66528adeb5b0f049f33e779be3d93d0702b381a3bda0b67db39e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA730 14728 bytes
font_02_sfnt_off0000d6be.bin
4e79554028941a6ff6ff45b1a43576dbe885e549c0fd966366c3f3a9a556af5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BE 16364 bytes

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