Malicious PDF — malware analysis report

Static analysis result for SHA-256 d62d902d84419866…

MALICIOUS

PDF

38.2 KB Created: 2020-08-14 13:18:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2e92cb0ac8a33876a697383e727c3b8 SHA-1: 3492654a90913549eac042f0a46057b41b65920d SHA-256: d62d902d844198662d03d1ffe03838c0149e3fad65cab39634711415cbef3245
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a 'Cateye volt 700 manual'. The PDF also contains a large number of links to Shopify domains, likely part of a link farm to improve search engine ranking for malicious content.

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.com/pify?keyword=cateye+volt+700+manual
    • http://files.portraitsbyglenda.com/uploads/1/3/0/7/130738593/vipokujog.pdf
    • http://files.stormthetrent.com/uploads/1/3/0/7/130738769/kekun_lurodewukamesik_kekuk.pdf
    • http://sigidikob.ashlynnsboutique.com/uploads/1/3/2/6/132680903/vufopa.pdf
    • http://files.benjaminrmark.com/uploads/1/3/1/4/131438464/gojukuvotum.pdf
    • http://files.cassandraroseclarke.com/uploads/1/3/1/6/131606756/534c70d020.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/mydigitallife_microsoft_toolkit.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/23151872911.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tekutuni.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/eft_best_ammo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0085/5706/files/60217661660.pdf
    • https://cdn.shopify.com/s/files/1/0429/4003/9324/files/retina_media_query.pdf
    • https://cdn.shopify.com/s/files/1/0428/4517/5971/files/total_number_of_countries_in_the_world_with_capitals.pdf
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/touring_bicycle_buyer_s_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/60825850665.pdf
    • https://cdn.shopify.com/s/files/1/0432/5025/3979/files/ielts_writing_answer_sheet_task_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2943/files/minidibeped.pdf
    • https://cdn.shopify.com/s/files/1/0432/9642/4096/files/21778542440.pdf
    • https://cdn.shopify.com/s/files/1/0428/4838/7239/files/lazexukeguxesaf.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_off00005887.bin
c1ff107d1f9d55395827c54fcde56927c5af9361f1367e42036f1978897477a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5887 4848 bytes
font_01_sfnt_off00006906.bin
7fcc43c08d167e4310f1be285cfc2a965d9beea8664f996cef35badc3c92b4f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6906 10224 bytes