Malicious PDF — malware analysis report

Static analysis result for SHA-256 9867c5f3c4e116d2…

MALICIOUS

PDF

41.1 KB Created: 2020-09-02 03:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99d3d8736ed6409dafce5f22fbab1680 SHA-1: d74d4add601ab162e5356fab24f7f51e4d41eb28 SHA-256: 9867c5f3c4e116d2c8a16cc9f46b44c7128a5b2edf19128d150741a57514dad4
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, intended to lure users to a malicious site. The document body and heuristics indicate a phishing attempt using a fake download lure. The primary malicious URL identified is ttraff.me, which redirects to a keyword-specific URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=apple+icloud++for+windows+xp
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/805943690.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/swash_plate_piston_pump.pdf
    • https://cdn.shopify.com/s/files/1/0430/8031/9130/files/breast_cancer_review_article.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/vajofawafirobunimozis.pdf
    • https://cdn.shopify.com/s/files/1/0434/8903/4402/files/ethical_issues_in_journalism_and_the_media.pdf
    • https://cdn.shopify.com/s/files/1/0434/5203/9328/files/formule_leucocytaire_poly_neutrophiles_haut.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/zupobokajanudutaso.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/45951570400.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/gunung_tahan_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/82794122716.pdf
    • https://cdn.shopify.com/s/files/1/0439/7550/8126/files/rejabenulelaroje.pdf
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/25658676163.pdf
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/32155720563.pdf
    • https://static.usrfiles.com/ugd/b65acf_93b8bc94faa846b8b17ceed2d18836f4.pdf
    • https://static.usrfiles.com/ugd/e643da_18a06c87ace94831b80559bf7cec1574.pdf
    • https://static.usrfiles.com/ugd/50c35f_a38ebec2613c4b1bac46f234720a5b7b.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_off0000633f.bin
3fdd8712b8eac8eb5fc9b1f7aae8e925f9c8793e06b696ef6820369ce97c7343
pdf-font-stream PDF embedded font (sfnt) at offset 0x633F 5088 bytes
font_01_sfnt_off000074ba.bin
e463417885da8a83f7e35bd93ed50796ca1174510007b646ba3fd09e7c50e54a
pdf-font-stream PDF embedded font (sfnt) at offset 0x74BA 10248 bytes