Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1de5aad0989f274…

MALICIOUS

PDF

46.5 KB Created: 2020-08-16 18:47:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 804a63b529bf42ac4e44da51bcae0f00 SHA-1: 4ab71a20b820b022e58f1052c5c0620d44551d2b SHA-256: d1de5aad0989f274dec3dd12d401b23e377ab850377b2cafc7943db7c05f5984
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it is a malicious redirector link, pointing to a URL that promises a free game download. This URL is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains the same malicious URL and a list of other URLs, suggesting a link farm designed to distribute malicious content or engage in SEO manipulation for malicious purposes.

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=criminal+case+game+free++for+android
    • http://files.jimnewmanart.com/uploads/1/3/2/7/132740541/rijolu.pdf
    • http://tuwemuju.aedt4200thesiscourse.com/uploads/1/3/0/8/130874359/jufuzusokoguguk.pdf
    • http://files.kentuckywoods.com/uploads/1/3/1/3/131380558/5115602.pdf
    • http://files.xtrmconstruction.com/uploads/1/3/1/3/131379622/fujitizuxuxamiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/4504/3880/files/best_basic_english_grammar_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/4486/2114/files/vixomoni.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/zipimunazibufobada.pdf
    • https://cdn.shopify.com/s/files/1/0428/3626/3078/files/sofazuwunokoja.pdf
    • https://cdn.shopify.com/s/files/1/0430/0763/9711/files/34418842154.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1398/files/mechanics_of_materials_7th_edition_beer.pdf
    • https://cdn.shopify.com/s/files/1/0431/7226/6138/files/xubodekarizer.pdf
    • https://cdn.shopify.com/s/files/1/0432/4045/6360/files/3m_tape.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/vozubujelogakanavil.pdf
    • https://cdn.shopify.com/s/files/1/0432/2109/0471/files/konofedivumasatapus.pdf
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/73103425772.pdf
    • https://cdn.shopify.com/s/files/1/0437/1929/5130/files/nuxebafebebanoxoziriv.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_off000077eb.bin
907db0612e02baf89dda1e05a920559d70406b0c104318f0b95dea13a5d54645		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77EB 5248 bytes
font_01_sfnt_off0000899a.bin
16d54809fb3a71a2d74475c703e32747562474a24055167293183d742528990f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x899A 10364 bytes

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