Malicious PDF — malware analysis report

Static analysis result for SHA-256 d118acf7a6bb189c…

MALICIOUS

PDF

50.6 KB Created: 2020-08-31 20:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa7fbdd817c108fdaa6a0a58319f5df2 SHA-1: 24c69df6fd655529520903446615ecf539f0cc10 SHA-256: d118acf7a6bb189c43cda26946176154bb8eac63dd33db131c95f8f7595e359b
168 Risk Score

Malware Insights

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

The PDF document contains a call-to-action phrase and a visual download button lure, directing users to click a link. This link, 'https://ttraff.me/wix?keyword=incoming+call+flash+light+app+free', is identified as a malicious redirector. The document also contains a large number of embedded links to Shopify, likely for SEO manipulation or to host further payloads. The presence of a password archive lure suggests an attempt to bypass gateway scanning.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=incoming+call+flash+light+app+free
    • https://cdn.shopify.com/s/files/1/0440/3465/4358/files/68325475355.pdf
    • https://cdn.shopify.com/s/files/1/0457/7918/9916/files/tifokaxadot.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/anime_old_man.pdf
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/fupavegipoxajukagom.pdf
    • https://cdn.shopify.com/s/files/1/0437/3348/3674/files/bihar_land_map.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/92553384894.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/penanapukilirel.pdf
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/lusanowugefopak.pdf
    • https://cdn.shopify.com/s/files/1/0430/8841/2836/files/msi_afterburner_latest_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/8353717087.pdf
    • https://cdn.shopify.com/s/files/1/0433/5242/4598/files/sifiximut.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91146339154.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/38760480538.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/brigham_city_weather_report.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_off00008781.bin
3c144c52788eb7558f9dad36a01866c9eff33f2d164d59dfb20d3e0aa0c462fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x8781 5368 bytes
font_01_sfnt_off000099a0.bin
36837a5d54af14f59d43fd0b27d595fb72d85e2efb5629f8cf19a6e36ab18194
pdf-font-stream PDF embedded font (sfnt) at offset 0x99A0 10516 bytes