Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e761a68ddb9101…

MALICIOUS

PDF

33.5 KB Created: 2020-08-19 12:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 044ea6923c84df511cbd21b6ed991c75 SHA-1: b7507a2c27ea6401b6b01dbf879456fdae7992b3 SHA-256: 69e761a68ddb9101fd8c316a4a0be7fa0e8877310d75083d7a2e8af166e35730
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a redirector service, https://ttraff.ru/pify?keyword=bollywood+movie+song+video, which is flagged as malicious. The document also contains a large number of links to PDF files hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The presence of these links and the malicious redirector indicates an attempt to direct users to harmful content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=bollywood+movie+song+video
    • http://files.heritagecouncil.co.uk/uploads/1/3/2/6/132696483/savamumatuv.pdf
    • http://xepase.ellabshop.com/uploads/1/3/1/4/131407089/losupozotiv_wubikirewofujiz_zafis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/9117/3277/files/12422099083.pdf
    • https://cdn.shopify.com/s/files/1/0433/4426/5366/files/sades_sa-_902_driver_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4099/files/73547262163.pdf
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/bewokujubiwidinadozefoze.pdf
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/winchester_model_1200.pdf
    • https://cdn.shopify.com/s/files/1/0434/8697/0021/files/derinuneti.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/98876696874.pdf
    • https://cdn.shopify.com/s/files/1/0438/0455/7469/files/bohra_marsiya.pdf
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/vurelexiwitukivurixemofo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/vunadekofadej.pdf
    • https://cdn.shopify.com/s/files/1/0433/9132/0214/files/minecraft_hoe_enchantments.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046fe.bin
5118061f8571e88043b7d0f40f6593e512d909ca8c70a0c8a5577beb1aab3535
pdf-font-stream PDF embedded font (sfnt) at offset 0x46FE 5144 bytes
font_01_sfnt_off00005890.bin
a48c01535f4deded502b6def4c365cbaaab36939fe6d4d305fd9b78171818834
pdf-font-stream PDF embedded font (sfnt) at offset 0x5890 9620 bytes