Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc9bda39be62041…

MALICIOUS

PDF

37.6 KB Created: 2020-08-28 02:06:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a04c212a325be8abbb7fc8f757eb6d64 SHA-1: 6af2464b849cee9f0948c3c63929fe6ce3f299b9 SHA-256: acc9bda39be6204185bfa8d42c116a0c49194185d438524cad99fe0c845acbe4
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to domains associated with link farms and redirectors, indicating a phishing or malicious redirection attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=vingcard+2800+minilink, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to 'Vingcard 2800 minilink', likely a lure to entice users to click the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=vingcard+2800+minilink
    • http://bomojoze.suareztogo.com/uploads/1/3/2/6/132695832/nifajaxuxizirale.pdf
    • http://piluxujen.coheartgallery.org/uploads/1/3/0/9/130969179/4898171.pdf
    • http://files.maplerunfriends.com/uploads/1/3/1/4/131453665/rirojofexurevi.pdf
    • http://kudud.angelaprior.com/uploads/1/3/2/8/132814930/935ecf3fea5e2.pdf
    • http://files.shootingcandidly.com/uploads/1/3/0/7/130775971/14aa2e6174de.pdf
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/riwidefexarekezoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/sources_of_nitrogen_dioxide_pollution.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/63600809474.pdf
    • https://cdn.shopify.com/s/files/1/0435/1688/7192/files/fedakopafi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/piguwasa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/fuzaviguroreliwidepewo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4206/1986/files/ribateraxelusirufixaxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/52950503595.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexivopagutufaxusezonav.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/warhammer_40k_codex_8th.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_off0000487d.bin
25ec04359f02c0e8082c81f224e20b989c9a2c6d3864c7e7e3fda4fc5f02197f
pdf-font-stream PDF embedded font (sfnt) at offset 0x487D 5060 bytes
font_01_sfnt_off00005977.bin
e971bb205d7c7daf6c20e3957b1e4868ee1a06bb63f952fed207597943a9ee07
pdf-font-stream PDF embedded font (sfnt) at offset 0x5977 10056 bytes
font_02_sfnt_off00007bea.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEA 4324 bytes