Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5ecfe66df6b320…

MALICIOUS

PDF

38.3 KB Created: 2020-08-20 00:13:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47a6f06ee7ecaed3fb604c563394aac7 SHA-1: 067e2d2afbb836492c6cc387ff9ead0c4eafe67f SHA-256: 0e5ecfe66df6b320f33bbcdf648fe035ebd5cbccd90a8fa9e4d3d3edd3e36208
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 that ultimately leads to malicious content. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. The presence of a link farm and a malicious redirector strongly suggests an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

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=bk+precision+function+generator+4084+manual
    • http://files.jetzak.com/uploads/1/3/0/7/130775537/4dac0bc11.pdf
    • http://sodisa.excelbusinessintelligence.com/uploads/1/3/2/8/132814930/ac8751d2f3e26.pdf
    • http://files.seas-marketing.com/uploads/1/3/1/6/131637814/tunesavowe_nolokiju_sebipoxixi.pdf
    • http://kujok.lynnespaintings.com/uploads/1/3/1/4/131409167/a723caa.pdf
    • http://files.rsdliteracytools.com/uploads/1/3/0/7/130739782/rabejiba-makufi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0452/6243/8560/files/marley_cooling_tower_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/1460/1378/files/7867803518.pdf
    • https://cdn.shopify.com/s/files/1/0435/1485/5583/files/alzheimer_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0447/1685/1356/files/science_lab_safety_quiz_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/6334/5301/files/jozopogarulaxudiveva.pdf
    • https://cdn.shopify.com/s/files/1/0437/6392/5149/files/nevimofijufafevuwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/sample_contract_agreement_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/3432/0794/files/89461706886.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/neliwutevige.pdf
    • https://cdn.shopify.com/s/files/1/0440/6149/1365/files/11856196172.pdf
    • https://cdn.shopify.com/s/files/1/0434/8349/6600/files/26995346997.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_off000055c6.bin
1686a0d455e16e80e85880fd8172d6871ae727c9dbeb850208b2f7f7ebff1026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C6 5872 bytes
font_01_sfnt_off000069bb.bin
f9200c7c3b2590d817e090eba2b0148ac2dede062c3dc6f34e7278d6851ad8f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69BB 10084 bytes

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