Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02afd6de37ff1f2…

MALICIOUS

PDF

97.6 KB Created: 2020-06-27 05:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a75417c253c658410c99671d2cab6c1f SHA-1: 058991c4db5d17edbc02c75b6889edd5560af56e SHA-256: a02afd6de37ff1f2086df8539d50fa5f55002dae49600e8b98c5387569b2b0d1
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/wp3?keyword=atp+calendar+2014+pdf#atp+calendar+2014+pdf'. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic firing suggests a social engineering lure to trick the user into clicking the link. The document body, though heavily obfuscated, contains the URL and appears to be a lure related to an 'Atp calendar 2014 pdf'.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wp3?keyword=atp+calendar+2014+pdf#atp+calendar+2014+pdf
    • http://cpcontacts.carrollprinting.com/uploads/1/3/0/2/130289242/6f04c.pdf
    • http://files.andryproperties.net/uploads/1/3/2/6/132681544/labejokegugawutoviw.pdf
    • http://available38.unix1.com/uploads/1/3/0/7/130775284/kosufef.pdf
    • http://mail.mentalis.info/uploads/1/3/0/6/130639552/tilafi.pdf
    • http://files.kylpinc.org/uploads/1/3/0/6/130604430/zakanokane-nexexevul.pdf
    • http://theherosheart.com/uploads/1/3/0/5/130539726/f5d4a.pdf
    • http://transformengineering.com/uploads/1/3/0/5/130540699/wulipamoderin.pdf
    • http://fhidiesel.com/uploads/1/3/0/5/130548039/pomudal-sorojisanef-wulelurutix-gomek.pdf
    • http://aceingenieria.com/uploads/1/3/0/2/130272283/5137116.pdf
    • http://latlongtraveldesigners.com/uploads/1/3/1/3/131382387/lanaxug-wemasogi-kenav-lalasemaf.pdf
    • http://amalficapitalfunds.com/uploads/1/3/0/5/130539019/lulonede.pdf
    • http://transformengineering.com/uploads/1
    • https://kotiwemulu.files.wordpress.com/2020/06/31802376851.pdf
    • https://ferorobel.files.wordpress.com/2020/06/58583478748.pdf
    • https://kadawajoxezo.files.wordpress.com/2020/06/boziperazugikirugajeza.pdf
    • https://kizobixejir.files.wordpress.com/2020/06/60142953447.pdf
    • https://fakemoj.files.wordpress.com/2020/06/94277468322.pdf
    • https://kafafawabeso511102548.files.wordpress.com/2020/06/99190582575.pdf
    • https://piputefanag.files.wordpress.com/2020/06/dekuvezozuf.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_off00013763.bin
c4e1abec27b5f324834d17ee33bb8a509fbdabebe48399bb9092cbc7a28b2672
pdf-font-stream PDF embedded font (sfnt) at offset 0x13763 5004 bytes
font_01_sfnt_off00014871.bin
f3d8c5a09c8ac5f871634bb5d60b7ad11d97c8b698f92bd8478a051aa140519f
pdf-font-stream PDF embedded font (sfnt) at offset 0x14871 17476 bytes