Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c401be89cd12bb7…

MALICIOUS

PDF

53.2 KB Created: 2020-07-30 21:35:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40f974188c1197248bb97e3d9d4df578 SHA-1: f99d57ca4d8feae7e6a773749551161cce9de2e7 SHA-256: 7c401be89cd12bb7803e196843f0bf050bed433b5cc76f3ee370eda8162fd871
120 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it links to known malicious redirector infrastructure and a link farm. The document body, though heavily obfuscated, contains text related to 'Ejercicios resueltos de caida libre fisica pdf', suggesting a lure for educational content. The primary malicious IOC is the ttraff.ru redirector URL, which is likely used to funnel victims to further malicious sites.

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.ru/pify?keyword=ejercicios+resueltos+de+caida+libre+fisica+pdf
    • http://files.tuscanrenaissanceacademy.com/uploads/1/3/0/8/130813768/f64f74.pdf
    • http://files.itsnotaboutthesexmyass.com/uploads/1/3/1/4/131407067/wewinesozibuwige.pdf
    • http://files.abrairalab.org/uploads/1/3/2/3/132303012/ligasijaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/40554929977.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/dufekaxejabovoranapumaro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2952/files/tijidixukoxol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1272/6677/files/5840441309.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/pikinabakoxebobote.pdf
    • https://cdn.shopify.com/s/files/1/0432/1892/7778/files/xoxazixikipakisoliro.pdf
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/rejad.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdf
    • https://cdn.shopify.com/s/files/1/0431/0859/7927/files/dojaxupisikadimi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/bogivasib.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/35842112105.pdf
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/nusatiperamitipapuxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3482/9222/files/vadigivabepifibibe.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/
    • https://cdn.shopify.com/s/fil

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078a7.bin
8fc6f0e236d019434661053faf4d5a6ca2220f515625b70ce9d88b0537ef1c9d
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A7 5100 bytes
font_01_sfnt_off00008a0b.bin
1cee6f3315db099ba8eba04b0c6a4b986dacc9258f6ee2990e21a0248da9a50d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0B 11676 bytes
font_02_sfnt_off0000afbb.bin
4df7d432bfacd39d9a4c50cb09915c8cacbf036009741f9c9314eb7fae48a072
pdf-font-stream PDF embedded font (sfnt) at offset 0xAFBB 16232 bytes