Malicious PDF — malware analysis report

Static analysis result for SHA-256 5304d04b73751147…

MALICIOUS

PDF

46.4 KB Created: 2020-08-08 12:46:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bdfdcffde60d66bf96b8311bafcee9f SHA-1: 933081ca62d65d594db24487591d39242aaf1341 SHA-256: 5304d04b73751147e5d15ee23440e024df32d282c195cdb24a0d4a9747648981
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.ru/pify?keyword=the+bodhisattva+path+of+wisdom+and+compassion+pdf'. This suggests the document's primary purpose is to redirect users to potentially harmful websites. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=the+bodhisattva+path+of+wisdom+and+compassion+pdf
    • http://zenukofon.dogswagco.com/uploads/1/3/1/3/131380480/2812edd.pdf
    • http://gimubonoz.nurturethefuture.ca/uploads/1/3/1/3/131398140/xedop-fikomazeworup-bosumuvab.pdf
    • http://files.eisenhowertheater.org/uploads/1/3/1/6/131637307/fiwumafijowitugelegu.pdf
    • http://files.redlakeclinic.com/uploads/1/3/0/7/130776351/230a1e27db5c0.pdf
    • http://files.modestgirlzrock.com/uploads/1/3/1/4/131408024/tewivigi.pdf
    • https://cdn.shopify.com/s/files/1/0446/1549/9939/files/makalah_amebiasis.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3575/files/vumodumigobitazepazemipul.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/woduxike.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/lol_time_played.pdf
    • https://cdn.shopify.com/s/files/1/0430/8962/5250/files/bezud.pdf
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/bozodu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/japanufisesutaliwebuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5694/files/24723412532.pdf
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/18811246260.pdf
    • https://cdn.shopify.com/s/files/1/0440/6178/6262/files/breast_cancer_awareness_in_nigeria.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/fisusezawopagupeperi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdf
    • https://cdn.shopify.com/s/files/1/0430/7946/7170/files/pojumatumo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4783/6058/files/60360572735.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_off00006a15.bin
6a5203f6c484eff1ad4efb358ef38402909516a18e2449c624ebac246e28a0a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A15 5296 bytes
font_01_sfnt_off00007c07.bin
21c0bd925ba27a8719c5b5e52683b8d23b68ec912b1ea867ed03c7188ef77deb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C07 9856 bytes
font_02_sfnt_off00009dd6.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD6 4324 bytes