Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac06ab4ec1deb346…

MALICIOUS

PDF

34.0 KB Created: 2020-08-11 07:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5083343c5860b6d94b1be7ad58f3b683 SHA-1: b7f4f827c9aa6b946776ca97516ccd464e0704cf SHA-256: ac06ab4ec1deb346bd44e73bd63e73fa8177ebf7fb40a6be51396b0e93e27fdf
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure related to a 'Borderlands 2 brady guide pdf', which is likely a social engineering tactic to entice users to click the malicious link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users to potentially harmful content.

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=borderlands+2+brady+guide+pdf
    • http://gafaluv.petalsfromabelovedbridesbouquet.com/uploads/1/3/1/4/131437987/mokurijude-manajefalarof-malikurupofoki.pdf
    • http://digaloj.logoffvacation.com/uploads/1/3/1/3/131383483/vosazet.pdf
    • http://files.nartica.org/uploads/1/3/1/3/131379183/4411540.pdf
    • http://files.brdparker.com/uploads/1/3/1/3/131381237/d7a6368.pdf
    • https://cdn.shopify.com/s/files/1/0435/8183/3379/files/22050672205.pdf
    • https://cdn.shopify.com/s/files/1/0433/2837/2886/files/the_economics_of_branchless_banking.pdf
    • https://cdn.shopify.com/s/files/1/0428/0729/6163/files/8514227214.pdf
    • https://cdn.shopify.com/s/files/1/0434/3031/4151/files/27140268444.pdf
    • https://cdn.shopify.com/s/files/1/0435/2986/3323/files/cash_drawer_count_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/9350/7739/files/98629142392.pdf
    • https://cdn.shopify.com/s/files/1/0433/1647/8110/files/41130243961.pdf
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/vuketemitojovujava.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/transplante_de_celulas_tronco_hematopoeticas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/webpack_config_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/8016/3227/files/funuzamawawaxe.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_off00004560.bin
0dca953ed550ad083b8f071f1231a76aa4a4637471c38c52da4ee4a1debc0cb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4560 5632 bytes
font_01_sfnt_off0000589e.bin
9ca3e9f1769741108abc1d7b5e342b9411f225d9fd3db49487aa7d8cd60f2637		 pdf-font-stream PDF embedded font (sfnt) at offset 0x589E 9764 bytes

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