Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb6e1ff38201086d…

MALICIOUS

PDF

78.6 KB Created: 2021-03-17 04:02:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d4e6b3b120f99cf49a23bcf9a1175efc SHA-1: 832c84c1759ac961a52edb7a19887d1b990e06f9 SHA-256: fb6e1ff38201086dca315a06d40e0c144cad4fd8826d44081965e5d10f3c9215
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9998

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://gimoguvi.ru/wix?keyword=myrtle+sarrosa+no+makeup PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4424013/normal_5ffcbd6a8aad7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447085/normal_600e0b4b09a6c.pdfIn PDF document text
    • https://mogobuzuxoxede.weebly.com/uploads/1/3/0/7/130740257/9113016.pdfIn PDF document text
    • https://cdn.sqhk.co/vetedaxuzele/cCghmjh/best_t-_mobile_phones_for_seniors.pdfIn PDF document text
    • https://cdn.sqhk.co/wufaluvete/hbgjije/char-_broil_performance_tru_infrared_300.pdfIn PDF document text
    • https://rupituvisudewek.weebly.com/uploads/1/3/4/0/134096379/namipuguxavexid_tewes_ponugum_wunuroz.pdfIn PDF document text
    • https://kixufeme.weebly.com/uploads/1/3/4/0/134018387/023440ffb4e57.pdfIn PDF document text
    • https://cdn.sqhk.co/bomoxale/7ia2igU/50586933458.pdfIn PDF document text
    • https://polalakenasi.weebly.com/uploads/1/3/0/8/130813885/5afaf1d6d8.pdfIn PDF document text
    • https://votumojelobi.weebly.com/uploads/1/3/4/8/134848055/8429403.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a06955-84c4-4e5d-ae46-596c31064c7e/kusazadigopage.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/20934867850.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/dekugarinubewu.pdfIn PDF document text
    • https://981168d4-05fc-44b6-871d-73371d7e8cf1.filesusr.com/ugd/87d215_6176e1abba4043988b8351548393aeb7.pdf?index=trueIn PDF document text
    • https://82c1a4a6-0aea-44ab-842b-07cb5bdde860.filesusr.com/ugd/aafee9_de23b7c1dfd84064b5022e6e5813c7d4.pdf?index=trueIn PDF document text
    • https://5cbbff6b-7c47-4fbb-abda-9de5069fbc88.filesusr.com/ugd/1a89c8_c20f83627f864b8d90d7e6cfd1013bcb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d40b16fd-9af2-4fec-b73b-e3346e1e8098/what_animal_produces_the_most_offspring.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a445a0e-4c18-421d-8298-64de8e15969d/veduzupugi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1f37616-1ec9-4ca2-8a69-d997d3e8527c/zebufadavila.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_off0000f5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A9 5136 bytes
SHA-256: 6aa5cc36345e80d96ede48c7d4f76e0c77223b408b917bf5d36c8679bc9f2750
font_01_sfnt_off00010721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10721 11228 bytes
SHA-256: 0c86c1fa389cc48b320071984492ae5d14ef88a0c02d66fe1bfdc8b48386019e

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