Malicious PDF — malware analysis report

Static analysis result for SHA-256 d489edec5c64c168…

MALICIOUS

PDF

37.1 KB Created: 2020-09-05 11:44:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 890adcb31d5bbaed9cb2e814eadd75c4 SHA-1: 7fd3b7d4900e4c3be6604123fd187d5f75db7ffc SHA-256: d489edec5c64c168b97e073ffd98d0117f3b5e165d75308ca786e404879fe377
128 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm, with one URL pointing to a known malicious redirector. The presence of a visual download button further supports a lure-based attack. The document body, though heavily obfuscated, contains the same malicious URL. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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.club/wix?keyword=lagu+athalla+naufal+salahkah+aku
    • https://static.usrfiles.com/ugd/a43ec6_ec7b605c8905412282cff6844c910a9a.pdf
    • https://static.usrfiles.com/ugd/c75f60_6ae524221c154faf9bcede38eb87394e.pdf
    • https://static.usrfiles.com/ugd/1e52da_17aac5f400c14e7e8d5e346f720f6d87.pdf
    • https://static.usrfiles.com/ugd/4c76bf_9dd25daf8eca4fa0a6b152b5a61ca7b1.pdf
    • https://static.usrfiles.com/ugd/1e52da_bd6521c424614114bdf4476a2d0a27ab.pdf
    • https://cdn.shopify.com/s/files/1/0435/1374/1471/files/76332196002.pdf
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/89043253753.pdf
    • https://cdn.shopify.com/s/files/1/0444/8436/2407/files/29320008078.pdf
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/39220007063.pdf
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/noughts_and_crosses_graphic_novel.pdf
    • https://static.usrfiles.com/ugd/941881_76a3f02201a14097bc0122884598db3b.pdf
    • https://static.usrfiles.com/ugd/f0e51d_32a7be8ec4dc47a59f8d8ac70cd33388.pdf
    • https://static.usrfiles.com/ugd/4fea5c_7db15dab683042e79e6e5a7903246770.pdf
    • https://cdn.shopify.com/s/files/1/0437/9466/1538/files/18381560523.pdf
    • https://cdn.shopify.com/s/files/1/0439/3834/9211/files/naruto_the_last_movie_downloads.pdf
    • https://cdn.shopify.com/s/files/1/0432/1512/6692/files/wadufajitaburilifoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0237/9939/files/57463495640.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_off00005418.bin
ddeddf6ab065a02db063ff27df82350da6874690fd3ea1c8af911238987a04ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x5418 4936 bytes
font_01_sfnt_off000064f6.bin
897390babb0d09f24c6992be9a1ae1ad51daf0a1dc87b3226c97c7570b317e44
pdf-font-stream PDF embedded font (sfnt) at offset 0x64F6 10076 bytes