Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f0d3bf26d1fed3b…

MALICIOUS

PDF

78.4 KB Created: 2021-03-14 16:26:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce89152b068659530846584b303db0b1 SHA-1: 71cd52006ff0a9344e7a705c1b3e883982cfcf4f SHA-256: 6f0d3bf26d1fed3bb4ec65d00138be6140e05277a8959a07e0fff0e61f141e93
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, with one prominent URL being https://botokaw.ru/strik?utm_term=insinkerator+badger+5+garbage+disposal+stores. This URL appears to be part of a phishing or malware distribution scheme, masquerading as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. No scripts were extracted, but the presence of numerous suspicious URLs points to a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://botokaw.ru/strik?utm_term=insinkerator+badger+5+garbage+disposal+stores
    • http://vk-settings-change.online/colored_laminate_sheets_for_salendem8.pdf
    • https://jatevabuxises.weebly.com/uploads/1/3/5/3/135382810/suxinanureripozab.pdf
    • http://about-igsupport.com/why_does_a_seed_need_oxygen_to_germinatea54gs.pdf
    • https://pegitizikaze.weebly.com/uploads/1/3/4/7/134730703/jewizeb_rusap.pdf
    • https://rotexutipuz.weebly.com/uploads/1/3/5/9/135966590/4722492.pdf
    • http://xudikuruno.iblogger.org/14860449568.pdf
    • http://arendagg.xyz/18423546244ucls3.pdf
    • http://bioforce-co.site/gone_with_the_wind_living_cast_membersbs25r.pdf
    • https://jaluburevajag.weebly.com/uploads/1/3/0/8/130874017/xefuvefoxesixa.pdf
    • http://naturebiolog.space/96346598230jcwqy.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dazuxujepov/best_whatsapp_status_video_pagalworld.pdf
    • https://uploads.strikinglycdn.com/files/4c736ec5-b0e5-48a0-9208-43108ecbefa8/linear_integrated_circuits_u_a_bakshi.pdf
    • https://s3.amazonaws.com/lebaxa/14283876968.pdf
    • https://s3.amazonaws.com/limepusotanal/5570596788.pdf
    • http://desibevazivoxan.rf.gd/36271228995.pdf
    • https://s3.amazonaws.com/joterige/bipanafafitowowememanafeb.pdf
    • https://uploads.strikinglycdn.com/files/5527abbd-3599-4979-866a-bc636780644c/foxit_preview_handler_outlook_2013.pdf
    • https://s3.amazonaws.com/kodipopujufipig/2016_chevrolet_tahoe_owner_s_manual.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f454.bin
ebc6118099624fb2070c8ab498bb00a821e5c917a1de16e206a8a66a52d14bc2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF454 5392 bytes
font_01_sfnt_off000106b5.bin
afc9d539c3d9a4fc6825ab52a772f4d880a2f2ed05bcc272110d2257daa2547c
pdf-font-stream PDF embedded font (sfnt) at offset 0x106B5 11044 bytes