Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3e3164b1cf1db9f…

MALICIOUS

PDF

72.8 KB Created: 2021-02-25 14:51:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 9d926b0de40dc1a1b8b6681351d7bf1c SHA-1: c92c6a8844aa6436ea9a61374175aa4e1c7576bf SHA-256: b3e3164b1cf1db9f5d8a7b84f1d80d1c9e0310e072b03c43a78b798a2b799584
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for link farms or phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, with one pointing to 'http://pusejik.epizy.com/94150233642.pdf'. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/wix?keyword=bmw+g30+accessories PDF link annotation
    • http://mavito.online/koputorojagubijunaq5t0b.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/eidgdEz/weather_forecast_for_the_week_near_me.pdfIn PDF document text
    • https://tinabatof.weebly.com/uploads/1/3/0/7/130776088/xugupikuwazix-vodasawuzurera-pumenefiwifo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501998/normal_601de44bed2dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pusejik.epizy.com/94150233642.pdfIn PDF document text
    • http://kenuxiximusopev.epizy.com/volume_booster_goodev_apk_full.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/91388952134.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/atlantic_rim_2018_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/icy_veins_ice_mage_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/85794088755.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/28495666781.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9F 5532 bytes
SHA-256: 5161e9a2dd3ba2c0f2e70ecb56e9605f4a97e7f1c7b413b6ae81d94d4cdce877
font_01_sfnt_off0000f077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF077 11316 bytes
SHA-256: 09111de07eda8ea05580026716e8a7bc00c6796239984bc1d70119421cb10415

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