Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d109fdf6bcca17…

MALICIOUS

PDF

44.2 KB Created: 2020-08-11 03:25:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1bd8c0aa7cec36fd235fcb800d4a0878 SHA-1: a72bd784b5a5e310cf157fc3446a09de6a3b3ef5 SHA-256: d0d109fdf6bcca178383904199aa7f71273277bbea5169c7b6ea3e1f6e82392f
128 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a redirector service (ttraff.com). The document body text and heuristics indicate a lure to download a converter, likely a pretext to get the user to click the malicious link. The presence of a 'download button' heuristic further supports this social engineering tactic.

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/pify?keyword=pdf+to+editable+word+converter+online+without+email
    • http://files.sheiladavis.ca/uploads/1/3/0/8/130814342/laralilutefolo_jividivisini_guwidileramog.pdf
    • http://files.fourcolneshorticulturalsociety.com/uploads/1/3/1/4/131453221/bonanipubaluf-fafuwuv-tawov-jokumejasakure.pdf
    • http://demej.paigeelizabethcollins.com/uploads/1/3/2/6/132682883/modukenozabo-jawerajeta.pdf
    • https://cdn.shopify.com/s/files/1/0445/3256/4132/files/binocular_single_vision.pdf
    • https://cdn.shopify.com/s/files/1/0433/5134/3269/files/attention_charlie_puth_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7909/files/86250476864.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/container_house_floor_plans.pdf
    • https://cdn.shopify.com/s/files/1/0433/3099/4326/files/dezafarulowemotiwuko.pdf
    • https://cdn.shopify.com/s/files/1/0432/8282/5371/files/47161319528.pdf
    • https://cdn.shopify.com/s/files/1/0431/2737/3986/files/fozenudozotatowutoru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/el_alcohol_en_los_adolescentes.pdf
    • https://cdn.shopify.com/s/files/1/0434/5544/7202/files/bolaloxixovoduwegazaw.pdf
    • https://cdn.shopify.com/s/files/1/0438/6793/0789/files/bengali_drama_script_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/63416990534.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/50325999707.pdf
    • https://cdn.shopify.com/s/files/1/0438/4089/7184/files/widogodokupelujiriruru.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_off00006d5b.bin
a9d3d4dc237e38a3c14fa9667b5f1921a0be387cfe0dbe9bbc32392d36f1c169
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5B 5376 bytes
font_01_sfnt_off00007f89.bin
d481474e1ccb86c1fcaf8653b4ec49cb62328de329cbfa467e7fe4870361e0f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F89 10628 bytes