Malicious PDF — malware analysis report

Static analysis result for SHA-256 54afb37f3e0bf957…

MALICIOUS

PDF

78.1 KB Created: 2020-12-27 11:32:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 5a74e448fdff64e2c79685a51fed90c9 SHA-1: 7b5414baf1d942a34337dea3734fc0e2bc526aa1 SHA-256: 54afb37f3e0bf9579448b57d36fa563503c8d274fa110d2c2c265ca8e2ab5836
186 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 identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. The primary URL, 'https://traffine.ru/123?utm_term=waiting+to+exhale+terry+mcmillan+pdf', is likely part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://traffine.ru/123?utm_term=waiting+to+exhale+terry+mcmillan+pdf PDF link annotation
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/2490472.pdfIn PDF document text
    • https://ponejibuwefugep.weebly.com/uploads/1/3/4/8/134879986/koxarofizesubugib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365560/normal_5fe044c0ab40e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368497/normal_5fc1ed579af83.pdfIn PDF document text
    • https://tidatulo.weebly.com/uploads/1/3/2/8/132815220/83f50592984ca.pdfIn PDF document text
    • https://sazagirisama.weebly.com/uploads/1/3/4/5/134585928/jezeg-bagiwejugirebos.pdfIn PDF document text
    • https://vesanawe.weebly.com/uploads/1/3/4/6/134602832/1445210.pdfIn PDF document text
    • https://wimelavejitovuv.weebly.com/uploads/1/3/4/5/134597731/6709322.pdfIn PDF document text
    • https://wegakerovosa.weebly.com/uploads/1/3/0/8/130873826/3479373.pdfIn PDF document text
    • https://gelupolo.weebly.com/uploads/1/3/5/3/135314506/52a87a39253.pdfIn PDF document text
    • https://wafubimuzev.weebly.com/uploads/1/3/4/8/134869603/6904084.pdfIn PDF document text
    • https://mebijakonenu.weebly.com/uploads/1/3/4/4/134458360/765586.pdfIn PDF document text
    • https://refefutetolesom.weebly.com/uploads/1/3/4/8/134868450/xixolef.pdfIn PDF document text
    • https://mafobosapufi.weebly.com/uploads/1/3/4/5/134505980/wesor-zitimigi-kisusujasur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/98152695-d457-4d71-aca4-41bd643e5bc7/jurassic_world_evolution_cracked_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E8 5364 bytes
SHA-256: b6d050afaaf131c1604c61a96001081cc6bb56c5844af9a5e04bac72a77f2641
font_01_sfnt_off0000f803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF803 10904 bytes
SHA-256: 3c9000993dbadc916acab32a83e886d56a215859239a1f0e66e5a3048f2b0357
font_02_sfnt_off00011d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D7D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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