Malicious PDF — malware analysis report

Static analysis result for SHA-256 d729dd154637c791…

MALICIOUS

PDF

39.9 KB Created: 2020-08-11 23:35:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b9c30ec0d6bb1b5350babbb1dd833bc SHA-1: 48df05b94b2b7791cf5f02a2751e771fc29dfe67 SHA-256: d729dd154637c79137148b6ee54afb6bff95794a3c3c2293769efa30566c4931
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wb?keyword=halimbawa%20ng%20maikling%20kwentong%20pambata%20pdf'. The document body also contains this URL, suggesting the intent is to lure the user to this malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on cdn.shopify.com, potentially for SEO manipulation or to obscure the malicious redirector.

Heuristics 3

  • 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.
  • 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/wb?keyword=halimbawa%20ng%20maikling%20kwentong%20pambata%20pdf
    • http://files.killeenalphas.com/uploads/1/3/2/7/132740458/469238.pdf
    • http://files.rbsm.me.uk/uploads/1/3/0/7/130776072/fapomomewa_dagavu_rolixinazusos_ziresono.pdf
    • http://files.medfieldheightspto.com/uploads/1/3/1/0/131070190/joridesaz.pdf
    • http://files.temperamentsart.com/uploads/1/3/0/9/130969750/4145509.pdf
    • http://files.shulman-writer.com/uploads/1/3/0/7/130739970/a80e4c53c4.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/location_services_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/8316/0995/files/difference_between_analog_and_ip_cctv_camera.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdf
    • https://cdn.shopify.com/s/files/1/0432/7689/4372/files/7763871513.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/5995/files/45951849625.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/56485001345.pdf
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/6762516143.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/gizirixusigixi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6077/9413/files/asme_drawing_standards.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_off000051f3.bin
d00c9c79acb44d75496eae43e23c72393df4f5bc368d41a75ecab83ec40e044a
pdf-font-stream PDF embedded font (sfnt) at offset 0x51F3 5132 bytes
font_01_sfnt_off00006366.bin
4692fbe357be35e1ab0abbb4ba65961aed0ab85d8bea4f0fd930dbc9464e2518
pdf-font-stream PDF embedded font (sfnt) at offset 0x6366 9648 bytes
font_02_sfnt_off00008471.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x8471 4324 bytes