Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db5282ca1807182…

MALICIOUS

PDF

47.3 KB Created: 2020-07-27 06:42:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b9edcd5beb84586d73d06759223d1bab SHA-1: 6c8f70c9f670904b444bb20e4b102daf5ab72df9 SHA-256: 0db5282ca1807182c91feef7fdd0d05ae26ce4c8f4a0665fb521608a38862227
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, suggests a lure related to a 'sample case study format psychology pdf'. The presence of a malicious redirector link and a large number of external PDF links indicates an attempt to lead the user to malicious sites, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=sample+case+study+format+psychology+pdf
    • http://files.howshedoesit.com.au/uploads/1/3/0/7/130776015/nibijebotesotapiralo.pdf
    • http://files.safebeautymovement.org/uploads/1/3/1/3/131384359/nomoro.pdf
    • http://files.edenhansenphotography.com/uploads/1/3/0/8/130814345/9382254.pdf
    • http://files.ascott-education.com/uploads/1/3/1/8/131857580/2110751d0.pdf
    • http://files.maidans.org/uploads/1/3/0/8/130814774/5915216.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/1968/1437/files/riwesadakiketofakuvomaruw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/falubixaposimapasubuxeja.pdf
    • https://cdn.shopify.com/s/files/1/0429/8460/3801/files/88741661983.pdf
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/domojujelogodomadipas.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/ragisi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/wozulikun.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/74480888780.pdf
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/fubilol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bofudajix.pdf
    • https://cdn.shopify.com/s/files/1/0437/7519/7346/files/76473103908.pdf
    • https://cdn.shopify.com/s/files/1/0440/1712/3486/files/77923272292.pdf
    • https://cdn.shopify.com/s/files/1/0435/5309/5844/files/pumugowat.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a4d.bin
2c083dd003846082d72de4c5488d70f1df9a57e494d45f6ed7d53e12be2dea71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4D 5500 bytes
font_01_sfnt_off00008d09.bin
f412acc553bc5ce16ddec8ea4e0decd37ae674bb18f5f6a42b936279321aacd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D09 10072 bytes

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