Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e1210b9ced9d2b…

MALICIOUS

PDF

86.8 KB Created: 2020-08-10 02:55:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00ec7bb3f70de675bc82c533ef22de4f SHA-1: 59e6daa3068e563ba6fc61a851460e7c1fff2253 SHA-256: 86e1210b9ced9d2b14f8080b06239fc68801ec704045fc82941f8727a4a629db
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify, designed to appear as legitimate documents. The primary malicious intent is revealed by the critical heuristic firing indicating a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=batching+plant+parts+name+pdf'. This suggests the document is a lure to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=batching+plant+parts+name+pdf
    • http://diwup.thisbostonlife.com/uploads/1/3/1/1/131164250/lujogujigo-jezutegago-mizamonazowi.pdf
    • http://files.easyfilesoftware.com/uploads/1/3/0/7/130739020/wajipot-dusif-fegixu.pdf
    • http://files.graceevangelical.org/uploads/1/3/0/8/130814234/8316525.pdf
    • http://files.yorkstone.ca/uploads/1/3/0/7/130740438/notidi.pdf
    • http://files.gtc-elite.org/uploads/1/3/2/6/132682570/netefikuvuboz_fifajog_jubakafa.pdf
    • https://cdn.shopify.com/s/files/1/0440/8141/4296/files/59929069418.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/army_class_b_uniform_setup.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/bsc_maths_notes.pdf
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/telaboguwum.pdf
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/brew_bistro_menu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0797/5335/files/beefer_rezepte.pdf
    • https://cdn.shopify.com/s/files/1/0428/5795/5487/files/bizetusewodim.pdf
    • https://cdn.shopify.com/s/files/1/0437/6172/9685/files/61157670289.pdf
    • https://cdn.shopify.com/s/files/1/0430/7891/0106/files/line_6_pocket_pod_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78985131446.pdf
    • https://cdn.shopify.com/s/files/1/0435/5633/9871/files/rurajoluzivagopufararine.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/50234199962.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_off0000fa73.bin
d74ab8a3bc90729b86ade9630d6755de091fbc6fe0c3e24dd94890bb3823ed12
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA73 5616 bytes
font_01_sfnt_off00010d63.bin
4abbd05e1efc1080a77aeaed6f994cf68c79f8d05701ae68e2ebdf11c0337326
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D63 15316 bytes
font_02_sfnt_off00013d11.bin
f6e25fdeec90711c8f92eae7f9e0d6425a3a947b6f0df2a82f32e491e1c5236a
pdf-font-stream PDF embedded font (sfnt) at offset 0x13D11 4444 bytes