Malicious PDF — malware analysis report

Static analysis result for SHA-256 41d591465c701bf1…

MALICIOUS

PDF

42.7 KB Created: 2020-09-01 04:07:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9077a1e08099421a79070dcdb49a2324 SHA-1: 71ea6b4b809156d7a85e5b2cfbe66ba9419a51f3 SHA-256: 41d591465c701bf1534c140c47b926b0a36906d72b28ada3ea6c71efcd4d4a56
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to a recipe, 'Chicken cheese steak sheet pan pizza', and embeds a high number of external links. One of these links, 'https://ttraff.cc/wix?keyword=chicken+cheese+steak+sheet+pan+pizza', is flagged as a malicious redirector. The presence of a link farm suggests an attempt to manipulate search engine results or direct users to malicious sites.

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/wix?keyword=chicken+cheese+steak+sheet+pan+pizza
    • https://static.usrfiles.com/ugd/b916f4_528e60dba2214f57a4f589f054ba83a6.pdf
    • https://static.usrfiles.com/ugd/409ca8_742dd136f6ab4efaac419d487b5d5b19.pdf
    • https://static.usrfiles.com/ugd/87b9a8_f252c436aa594a37b0ef5f0484f88d8e.pdf
    • https://static.usrfiles.com/ugd/33a2e4_2ace7f97dd294251a8649e7b67d57510.pdf
    • https://static.usrfiles.com/ugd/086daf_deb0ad3e07014dd397e3edc3cf6da437.pdf
    • https://cdn.shopify.com/s/files/1/0433/7968/7587/files/xateludalofaraz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/susuzanixenonagika.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdf
    • https://cdn.shopify.com/s/files/1/0435/2085/2122/files/95725442063.pdf
    • https://static.usrfiles.com/ugd/6846fe_b69f352eb0604962b7749cd969c22fd6.pdf
    • https://static.usrfiles.com/ugd/cc15ef_98159debaed34fbc9fdd87f531bfdd91.pdf
    • https://static.usrfiles.com/ugd/6da380_029f0a8430ff4836ad59a81bbb7caaae.pdf
    • https://static.usrfiles.com/ugd/9d66c7_fe5a9e99361b4e718e6fe925b1a549d5.pdf
    • https://static.usrfiles.com/ugd/5be868_e804769514cf44b1bed8676a28840a91.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_off00006722.bin
7141e1ce59c64968de72537337a6af39a02abd0886ea302044ea395a6d379efd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6722 4912 bytes
font_01_sfnt_off000077de.bin
aeecd6e4f86db18221f214eade03bfdcb8c48235c5aa84fc7edf9ddcc5601f18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77DE 10588 bytes

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