Malicious PDF — malware analysis report

Static analysis result for SHA-256 2af2628505ef343c…

MALICIOUS

PDF

46.1 KB Created: 2020-08-18 19:07:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bdf5e5e5aa7f7a5defe34cfbc0660bb7 SHA-1: 43d98df99ebfb8cd29838ad6de35a20e7aee2282 SHA-256: 2af2628505ef343c1c88b5f0adac7f2380ea21130f5ca9f3134db18502451e85
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.com/pify?keyword=responsive+food+website+templates+free'. The document body, though heavily obfuscated, contains this URL and other links to Shopify domains, suggesting a lure to disguise malicious content. The ML classifier also strongly indicated maliciousness.

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=responsive+food+website+templates+free
    • http://zonix.lisabrack.com/uploads/1/3/1/4/131452883/bawitipamapabipo.pdf
    • http://files.atvguardshop.com/uploads/1/3/1/4/131407148/477cdc4f3eac96.pdf
    • http://zugemat.killarabyod.com.au/uploads/1/3/0/8/130874422/7b12b171b0cb7.pdf
    • http://zokelele.cornerstone-civil.com/uploads/1/3/1/4/131453134/83585.pdf
    • http://files.mjmoments.com.au/uploads/1/3/1/3/131383384/soxamew_mikiputejebirub.pdf
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/28052209175.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/28246750695.pdf
    • https://cdn.shopify.com/s/files/1/0434/3837/5074/files/chinese_consonants_and_vowels.pdf
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/activating_seer_anointing.pdf
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/pdf_file_download_apkpure.pdf
    • https://cdn.shopify.com/s/files/1/0435/8724/0093/files/jigolapabotu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/40136796184.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/derojasumuxoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/fisapewumux.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/web_application_security_testing_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0439/3995/4856/files/discovering_behavioral_neuroscience_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/9857/0909/files/gimilezedib.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_off00006af7.bin
469e4701041508a4f821b18fb22c87f68de8f3fec45c1460ed00cbb3d8ef60ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF7 5484 bytes
font_01_sfnt_off00007d8b.bin
8770a9d16f6ec8ed1e04f7f31595c1fd3834ff76ff6f55291086ab87d6d749e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8B 2268 bytes
font_02_sfnt_off0000879d.bin
c967c7cc2e2dc11e9199f06e0d87bdaecb9f43720c218403a62373463de9e520
pdf-font-stream PDF embedded font (sfnt) at offset 0x879D 10180 bytes