Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdd00f38075809af…

MALICIOUS

PDF

49.9 KB Created: 2020-08-09 06:55:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a3b5084a9521c3b04edd18fd9043d7d SHA-1: ad90507fc189e274f0d7602801d8e6767e4b9cd7 SHA-256: bdd00f38075809af83872e39fd79bec857dc6664f611d77e26e7d9e83dcda176
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=anti+inflammatory+diet+cookbook+pdf'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into clicking it. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO manipulation tactic to distribute malicious 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.ru/pify?keyword=anti+inflammatory+diet+cookbook+pdf
    • http://files.mygara.com/uploads/1/3/0/8/130874012/6b68104b96c90e.pdf
    • http://files.aandrdesignsinc.com/uploads/1/3/0/8/130874369/ed6bbe.pdf
    • http://siton.sathercreative.com/uploads/1/3/1/8/131871699/puledojif_xezawotuporeda_fiwidix_situnuwofu.pdf
    • http://files.ciclismomastercolombia.com/uploads/1/3/1/8/131856162/wataxuvoruteza_dejaketobugiles_vefadaxapawuna.pdf
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/66884556949.pdf
    • https://cdn.shopify.com/s/files/1/0435/8530/6782/files/writing_answer_sheet_ielts.pdf
    • https://cdn.shopify.com/s/files/1/0432/3983/3763/files/mibanixawarofurelef.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8194/files/19324973094.pdf
    • https://cdn.shopify.com/s/files/1/0432/9386/8187/files/f2p_money_making_osrs.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/tewelaretevamefemaripo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8254/6341/files/99145322597.pdf
    • https://cdn.shopify.com/s/files/1/0432/4160/3239/files/egyptian_architecture_history.pdf
    • https://cdn.shopify.com/s/files/1/0438/2775/7216/files/pesifofodogodutezufokav.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3809/files/82516180017.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/7034217740.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_off00007719.bin
17fdd218916df66855a94bb4b1567e1af7e9e0f30b7cf4c9064d70103d2b8092
pdf-font-stream PDF embedded font (sfnt) at offset 0x7719 5204 bytes
font_01_sfnt_off000088b3.bin
a8fb83ac2af252347d212984267258343935e5187260bd9d27694f50756c78e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x88B3 10352 bytes
font_02_sfnt_off0000ac10.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC10 4324 bytes