Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6712e94ec785dc…

MALICIOUS

PDF

69.6 KB Created: 2021-03-23 13:05:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 97533cbd62ae6552f318f9e4db00dcbb SHA-1: 335a64bc2d764efe84b1c5aa89609d2ae248c0d0 SHA-256: ae6712e94ec785dc386ada70630a1e0302c0d8ebe47864f45711165b981c6513
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, with several pointing to suspicious or unknown domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document, potentially leveraging embedded JavaScript for exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8294

Heuristics 4

  • 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
  • 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/aws?utm_term=the+natural+dog+company+odor+free+bully+sticks PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464715/normal_600eb0ad70f09.pdfIn PDF document text
    • http://tameeniraq.com/examples_of_python_programsg3bbh.pdfIn PDF document text
    • http://zootime.store/19219213433a8noz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530036/normal_5fc70e5ee2b9e.pdfIn PDF document text
    • http://astropsychology.site/62780870950bv6m7.pdfIn PDF document text
    • http://hotel-engels.ru/34634623886i5k8v.pdfIn PDF document text
    • http://ekzo-fruit.ru/orbit_irrigation_system_user_manual6svy6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450354/normal_604ad6d3bece3.pdfIn PDF document text
    • http://tokidijafa.22web.org/arithmetic_math_test.pdfIn PDF document text
    • http://shoplus.info/stihl_she_71_electric_blower__vactu9cw.pdfIn PDF document text
    • http://alcexpress3.xyz/koxowalepdx8zt.pdfIn PDF document text
    • http://moneyindia.site/27014165704r2jmq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/miwuropifukikonero.pdfIn PDF document text
    • http://puzenufamem.rf.gd/how_to_connect_motor_siren.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62eb1f48-659a-4673-879f-8ac8b95bfe86/help_with_computer_problems_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/ejemplos_de_dialogos_directos_e_indirectos_cortos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/514a1786-1f3c-48e2-9f67-667e8f38fef3/kidutuseburomug.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/aoql_ka_full_form.pdfIn PDF document text
    • http://niwuzowebod.epizy.com/gefesewizelesiwa.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/alfreds_self_teaching_piano_course.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001007b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007B 5824 bytes
SHA-256: cad162b1f79db955b0ba2ea28e5f0b62df5795f39d712d4effc55d5569326f46

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