Malicious PDF — malware analysis report

Static analysis result for SHA-256 606a5950003d6c22…

MALICIOUS

PDF

77.1 KB Created: 2021-02-19 04:46:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 58b1bd6f8fba651f4630bcd588bc5bca SHA-1: 7ebee125929543a2dc17d8b4b732f84be8974bc1 SHA-256: 606a5950003d6c22d89ff42a2284036da240a5235826251e4be924059ca39315
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for link farms and phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as phishing or a trojan. The document body, though partially corrupted, suggests a lure related to a 'Craftsman 225 mph electric blower vac manual', likely to entice clicks on the embedded malicious URLs.

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 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://baarspo.ru/strik?utm_term=craftsman+225+mph+electric+blower+vac+manual PDF link annotation
    • https://fegemuvu.weebly.com/uploads/1/3/2/6/132695633/tugorilobagaj.pdfIn PDF document text
    • http://trackcreditscore.info/wexonoyvxid.pdfIn PDF document text
    • http://bekunogoxabune.iblogger.org/3019857623.pdfIn PDF document text
    • http://respect-ltd.su/59950338029nltmj.pdfIn PDF document text
    • https://nupureforisuro.weebly.com/uploads/1/3/4/3/134353583/lotowipebupu_sitej_begafanos_tizinufulanuxez.pdfIn PDF document text
    • https://pigumetazemebet.weebly.com/uploads/1/3/0/7/130775485/e5b2803624.pdfIn PDF document text
    • http://powerpoint4you.ru/differentiated_instruction_effective_classroom_practices_reportmt4r7.pdfIn PDF document text
    • https://nugekiva.weebly.com/uploads/1/3/5/3/135322430/74660534ef.pdfIn PDF document text
    • https://buvonage.weebly.com/uploads/1/3/0/9/130969236/vamazorogemonav.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/nedijowewoded/manualidades_con_botellas_desechables_faciles.pdfIn PDF document text
    • http://tejizikadojuni.epizy.com/beginner_piano_books.pdfIn PDF document text
    • http://rokabimokow.rf.gd/ardas_sahib_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/animation_softwares_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/axton_solo_build_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/diy_clapboard_template.pdfIn PDF document text
    • http://pokuwetov.rf.gd/why_is_my_honda_lawn_mower_not_starting.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_off0000ee8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE8B 5708 bytes
SHA-256: ec61e894296882cb78ec4611660dcde43d81c4e56863bf1a63c3a4d72754c400
font_01_sfnt_off000101e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E7 11156 bytes
SHA-256: d5f75265ed26b8d6757f77a6c75441b7a66806c8b5c4f79b7c226ecb13cd3e38

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