Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d01ecb9a0e08ee…

MALICIOUS

PDF

76.4 KB Created: 2021-05-21 13:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7d4713b34900c96497c48742d2da1146 SHA-1: 5905a2eaf059317c68b916d16a4d5388e3d56d9e SHA-256: 94d01ecb9a0e08ee0e456fc261922cb9e463fc4547447dc9716c662a7a32513e
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/strik?utm_term=how+to+hold+your+hands+playing+piano PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447095/normal_604a95a403ea6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410433/normal_6062001145bf4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451227/normal_6011433ab5e3c.pdfIn PDF document text
    • https://rofaxebawo.weebly.com/uploads/1/3/4/7/134750080/40b498e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463824/normal_5fffb8ed54425.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454670/normal_605aa7a723a4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450250/normal_602eda1887e4b.pdfIn PDF document text
    • https://zexuboru.weebly.com/uploads/1/3/2/6/132683252/zuxivax.pdfIn PDF document text
    • https://komomofuxuz.weebly.com/uploads/1/3/4/4/134494735/ralikipujaduwetu.pdfIn PDF document text
    • https://kigokowolabewal.weebly.com/uploads/1/3/4/1/134132594/1bb8a.pdfIn PDF document text
    • https://faniruwesil.weebly.com/uploads/1/3/5/9/135993686/nowipivakeji-wovoges-sudediwe.pdfIn PDF document text
    • https://tulixepatezapik.weebly.com/uploads/1/3/4/9/134902644/2711993.pdfIn PDF document text
    • https://zazewefagawi.weebly.com/uploads/1/3/0/7/130776698/bfbd8b9bbfb.pdfIn PDF document text
    • https://fozidisevuxife.weebly.com/uploads/1/3/4/3/134356050/59c3c48e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413714/normal_603bd041f21a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498345/normal_60469e3381293.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/dumupa/lekomu.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/joruzoxozik.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/gevimoxupi.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/lagu_adella_full_terbaru_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/superstore_season_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/nukusenurojup.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/globo_aerostatico_en_forma_de_avion.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/roland_td4_review.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/can_payday_loans_go_to_collections.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE17 5376 bytes
SHA-256: 94637d6c9ed6dd56ba6fbb23217e9b47bdfc0b729608af7ff4ff49a0d326af48
font_01_sfnt_off0001006e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006E 10600 bytes
SHA-256: e96a9a93b0aa7e21681736738492e4a7dbd77271f79d3bdabb02f05d4c862374

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