Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab6e738f7597160a…

MALICIOUS

PDF

48.4 KB Created: 2020-08-04 02:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43039ef244994eedaf0906551f7362c6 SHA-1: e0512f52a64a6fd54fb9f0b5e58130b178934d03 SHA-256: ab6e738f7597160adda72f2169e28191246fde0d4506fa8f91d6d77da40a5a72
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains a reference to the same URL. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content. The primary attack pattern involves tricking the user into clicking a link that leads to malicious infrastructure.

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/pify?keyword=cavalleria+rusticana+score+pdf
    • http://files.susanlevi-goerlich.com/uploads/1/3/1/8/131856290/fojepuvadajov.pdf
    • http://files.allaroundanimalcontrol.com/uploads/1/3/1/3/131397996/7eb88.pdf
    • http://files.warnersroadtrips.com/uploads/1/3/1/6/131607005/vekilemederiw.pdf
    • http://files.avisplacechildcare.com/uploads/1/3/1/0/131070307/83dc6d0f0f21.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/xanigebuzukupukejes.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/vemitokopobudezomavazefo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1666/6786/files/padesosoxivewesudoru.pdf
    • https://cdn.shopify.com/s/files/1/0432/8200/6171/files/sitifubugudadim.pdf
    • https://cdn.shopify.com/s/files/1/0435/9729/9869/files/nezojonerodidesu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/44415153479.pdf
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/11571985881.pdf
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/karututorowidik.pdf
    • https://cdn.shopify.com/s/files/1/0434/5570/9351/files/dixewamijisitapoxuxi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/24142045976.pdf
    • https://cdn.shopify.com/s/files/1/0433/4452/7525/files/48642869535.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11286786524.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_off00008054.bin
2017c44061eb74a3f12ce505509cf9a3bf6240af9e74567b235f1b24635f40b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8054 5116 bytes
font_01_sfnt_off000091cf.bin
9c9e73ea67159e4029b5b8e9d4a1aa8d7790ae616547ae7e8454c6ef44cc8f57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91CF 10168 bytes

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