Malicious PDF — malware analysis report

Static analysis result for SHA-256 2daa577effc574f6…

MALICIOUS

PDF

45.8 KB Created: 2020-08-29 21:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a50d045fa63ca49f070bf660f4321fe0 SHA-1: c0b7ada88d4e0d57c2c21ec743fd9ee00652d624 SHA-256: 2daa577effc574f6ca3e70e924fa16e05c0f5a420bb7f47a2defba5fd052166b
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. It also features a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content broadly. The presence of a download button lure further supports the malicious intent of directing users to external, potentially harmful, content.

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.com/wix?keyword=ashampoo+photo+commander
    • https://cdn.shopify.com/s/files/1/0435/2580/0087/files/coesia_annual_report_2015.pdf
    • https://cdn.shopify.com/s/files/1/0437/3141/9287/files/lisulefagebimamajok.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/website_design_steps.pdf
    • https://cdn.shopify.com/s/files/1/0443/0177/9100/files/53884141416.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4939/files/78341336658.pdf
    • https://cdn.shopify.com/s/files/1/0428/2020/6758/files/75453246270.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb28072733b24862b11105ec8d3431bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_58416f673d194866acf20d68800139f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_eb7b9ff53afe4665843893c2008d0bbc.pdf
    • https://static.usrfiles.com/ugd/09273f_0fa78d102c704368b21bd1264e1a98e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_0cf667b027d048ed83fedcfa84e3f7d2.pdf
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/38440167994.pdf
    • https://cdn.shopify.com/s/files/1/0432/7912/2587/files/bridging_the_gap_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/40655584571.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_off00006728.bin
dd7c68a2b34572a78ec4344819619a8f86d213d94dcb7294daa0217b932f5131
pdf-font-stream PDF embedded font (sfnt) at offset 0x6728 5008 bytes
font_01_sfnt_off000077ec.bin
31a46c8dde0602c10e36dbddbffa94a80bd6395cc44643c63e6f27c1b7d1da88
pdf-font-stream PDF embedded font (sfnt) at offset 0x77EC 10872 bytes
font_02_sfnt_off00009c18.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C18 4324 bytes