Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6190b7bb6fc496…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 05:35:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7e20bcd2c448c8e0f75ea94ba2df609 SHA-1: fb88c83ad4eb67d0b8af12f9c1a1881ad1ec9b75 SHA-256: dc6190b7bb6fc4967a56f42d107af5a288a2699a5aac8ca0090480a639157b77
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.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the same URL and references 'Occupational safety and health act pdf', suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm intended to manipulate search engine results or distribute malicious content. No scripts were extracted, but the primary attack vector appears to be a malicious redirector embedded within the PDF.

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.cc/pify?keyword=occupational+safety+and+health+act+pdf
    • http://files.saturnrinanewburnmedportfolio.com/uploads/1/3/1/8/131858791/tefugarotajow.pdf
    • http://files.serendipityhippie.com/uploads/1/3/0/7/130776822/ditibutuguwe-jijuliwefubomun.pdf
    • http://files.teamgerbs.com/uploads/1/3/2/3/132302910/folekelapelu_gajefowi_narubasaderevaj_fubojif.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/fsx_lessons.pdf
    • https://cdn.shopify.com/s/files/1/0441/0834/9592/files/bujinulasavut.pdf
    • https://cdn.shopify.com/s/files/1/0436/6857/0265/files/marks_and_bleeds_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/business_action_plan_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9516/files/26490148078.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/bimaletewodefinofiten.pdf
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/41165445221.pdf
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/simewuwojuroliv.pdf
    • https://cdn.shopify.com/s/files/1/0435/4703/3752/files/vojejegupupeninen.pdf
    • https://cdn.shopify.com/s/files/1/0427/7665/8087/files/xedixipijobo.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_off0000684a.bin
f6ee5d311e1338ee276cc187b6a5946dc6bf47d98fb9911990f8f4bf265d6c53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684A 5276 bytes
font_01_sfnt_off00007a3f.bin
a730a644bf6aff204f635718dd3901c1af98bda1f55a62a25f902ead75028c30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3F 9928 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.