Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7867c533c4f9b9d…

MALICIOUS

PDF

70.6 KB Created: 2021-02-16 00:13:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 4291f5521a22951d66b109717060bcf9 SHA-1: 6d4130f6c3fbc48bd4b69a4c458590d25d0ff9b4 SHA-256: e7867c533c4f9b9d0f1b9d98b0ea8783633743b60db9bff412358f41f925ea93
126 Risk Score

Malware Insights

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

This PDF document is flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, suggesting it functions as a link farm to distribute malicious content, likely related to 'freedom hack apk without root'. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution scheme, potentially leveraging JavaScript for execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/wix?keyword=freedom+hack+apk+without+root PDF link annotation
    • http://buvanerupapuko.22web.org/tiwajewizabagetorodojome.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381532/normal_5ff2311854ba3.pdfIn PDF document text
    • https://kewejalafu.weebly.com/uploads/1/3/5/3/135329801/c804fd0315f06.pdfIn PDF document text
    • https://zejikato.weebly.com/uploads/1/3/3/9/133997407/1c5665ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372972/normal_60176644cd897.pdfIn PDF document text
    • https://dukopovofozevi.weebly.com/uploads/1/3/5/2/135295758/torekusomobeda_merononun_vusotawiredexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420020/normal_5fe6e9bd6c957.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/qhfeBgg/orange_dream_enchi_pied_ball_python.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480387/normal_600aa62a53a5f.pdfIn PDF document text
    • http://gmetry.online/973680364819mi7t.pdfIn PDF document text
    • https://wujawosekeg.weebly.com/uploads/1/3/4/7/134712458/xiwaz.pdfIn PDF document text
    • http://24magazine.ru/zirikikuvutamiqff78.pdfIn PDF document text
    • http://reduslimitalia-ufficiale.site/vofibipumtgej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465930/normal_5ff6c270a8c90.pdfIn PDF document text
    • http://aycotoro5.xyz/reversal_candlestick_pattern4br86.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://niwogoboso.epizy.com/23708779024.pdfIn PDF document text
    • http://xuxerikafirin.epizy.com/english_songs_website.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_off0000d961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD961 5212 bytes
SHA-256: d8e29d40f8d41621669ec08c8550a9acacf2ca1ce88e29eabb1b59ab00d3f7b7
font_01_sfnt_off0000eb03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB03 10164 bytes
SHA-256: 7454df6a0d8774ed7bf7ced8566d16b503208cdf00d7fcea8f4572b06e3d7c6a

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