Malicious PDF — malware analysis report

Static analysis result for SHA-256 515af062b0cb4469…

MALICIOUS

PDF

39.7 KB Created: 2020-08-15 10:42:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c19cd5644e0bf9eb98cbdcbbab04d2f SHA-1: f45bf95f60a6e4a8cf421db02ef8aa623c8df6ea SHA-256: 515af062b0cb446981f41141ea21ed638ae37ed44c5cf59eb435392befcb762e
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 a malicious domain, disguised as a free sample audit report template. This is further supported by heuristics indicating a malicious redirector link and a PDF link farm. The primary goal appears to be directing users to malicious infrastructure via social engineering.

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=free+sample+audit+report+template
    • http://files.gaindetalks.com/uploads/1/3/0/8/130874629/dojoja-kefuzegomoli-wadab.pdf
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/90372296159.pdf
    • https://cdn.shopify.com/s/files/1/0434/5721/6678/files/pronunciacion_del_alfabeto_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/domestic_animals_outline_pictures_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/ascii_middle_finger_one_line.pdf
    • https://cdn.shopify.com/s/files/1/0432/7204/4697/files/swing_trading_for_dummies_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/6193/6290/files/34771874094.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1047/files/jedufelet.pdf
    • https://cdn.shopify.com/s/files/1/0437/6412/1752/files/lifuzagitaburipifin.pdf
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/thomson_travel_moneycard.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59526866216.pdf
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/gabawazulanitevosixi.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_off00005fc9.bin
f2b6a96158fc1ca43a5378cc193a7c93694355ba5704c605679937bda5ad41ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC9 5060 bytes
font_01_sfnt_off000070e3.bin
47f38a18aa88b77910fc8d0f65273fb39d0fe8077e15de497673e2b5fc6d8308		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E3 9876 bytes

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