Malicious PDF — malware analysis report

Static analysis result for SHA-256 94332ba42d8b2b65…

MALICIOUS

PDF

69.6 KB Created: 2020-11-11 14:43:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 4de6646a97d68af06cd5aae81494dca1 SHA-1: b02e0657aba187e35caa321eb4ee1974f165a503 SHA-256: 94332ba42d8b2b65b8ff3eafb18e46aa219c02722602a5689acaca77f8f9ff3a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for a large number of external links, suggesting a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. The primary URL identified is likely part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/strik?utm_term=overview+cell+reproduction+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367622/normal_5fa11f982bebf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_5f9298596e069.pdfIn PDF document text
    • https://gemenudotipetal.weebly.com/uploads/1/3/2/6/132695720/2957024.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/bozukewam.pdfIn PDF document text
    • https://zetewewab.weebly.com/uploads/1/3/4/4/134479884/04e110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f9e2ba29f1df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402504/normal_5f9204a874997.pdfIn PDF document text
    • https://jaxumemiri.weebly.com/uploads/1/3/4/4/134465633/2917923.pdfIn PDF document text
    • https://bevatisaxotel.weebly.com/uploads/1/3/4/3/134378436/1594198.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371799/normal_5f8ede1a00990.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/pugomonapoxuxe/download_gta_5_full_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/lodunixodetum/western_digital_my_cloud_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/91600902954.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/diane_gaidry_verite.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/lk-case_com_pages_video2_lg_g8.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_off0000d2f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F4 5404 bytes
SHA-256: 94a4078c121df875ca02645ab6ebd39af3396b5dc4b8ce01ffad7dc883c76f30
font_01_sfnt_off0000e565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE565 10536 bytes
SHA-256: c8a47071e1f0ff1ea079dbaa45c7b9097abaed891b1dc9d97d330076bf82c6d8

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