Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a17a0357189521f…

MALICIOUS

PDF

80.7 KB Created: 2021-05-18 19:02:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 58e354d9bc3f9532a6d5877993b49709 SHA-1: 20616b12d690831d828f0f45c33dfca143ebc84f SHA-256: 0a17a0357189521fc22850437a05942e5137f49a851a1d05fdbddecba7d9685d
156 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ClamAV detection and ML classifier strongly indicate maliciousness, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://zajinet.ru/strik?utm_term=lux+geo+thermostat+not+turning+on+ac PDF link annotation
    • https://bemafaparad.weebly.com/uploads/1/3/2/6/132681832/pamil.pdfIn PDF document text
    • https://fivitilanafime.weebly.com/uploads/1/3/5/3/135395402/tegirej-dumelazewem-kerusisa.pdfIn PDF document text
    • https://ramageputa.weebly.com/uploads/1/3/1/6/131637054/582bfd2.pdfIn PDF document text
    • https://topizamo.weebly.com/uploads/1/3/4/4/134435864/7201761.pdfIn PDF document text
    • https://fexedewikefitug.weebly.com/uploads/1/3/2/6/132681233/5613a8fe.pdfIn PDF document text
    • https://gedijidejejew.weebly.com/uploads/1/3/0/7/130775336/dapafixulel.pdfIn PDF document text
    • https://navemozozaju.weebly.com/uploads/1/3/1/1/131164567/f5d0b0.pdfIn PDF document text
    • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/027cb.pdfIn PDF document text
    • https://fosegeluka.weebly.com/uploads/1/3/4/7/134717840/9d325d1eac.pdfIn PDF document text
    • https://sugemisikuwev.weebly.com/uploads/1/3/1/8/131856456/9754437.pdfIn PDF document text
    • https://pivisagut.weebly.com/uploads/1/3/2/8/132815367/pekogelifajev_sanezedifevalen_netafu.pdfIn PDF document text
    • https://sotipazokelaxat.weebly.com/uploads/1/3/2/7/132712266/devoruderux.pdfIn PDF document text
    • https://jigotofobab.weebly.com/uploads/1/3/5/3/135300724/3e95d9af07df62.pdfIn PDF document text
    • https://vukedezesul.weebly.com/uploads/1/3/0/7/130776134/4157687.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/vukumesoj/chauvin_arnoux_6250_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/40291340006.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/selected_aspects_of_fractional_brownian_motion.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/blue_eyes_1080p_video_song_free.pdfIn PDF document text
    • http://tunazafagid.epizy.com/cape_town_water_levels.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/alliance_quest_guide_vanilla_wow.pdfIn PDF document text
    • http://wigebinijeg.epizy.com/the_hollywood_reporter_oscar_roundtable_2018.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_off0000fe1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1F 5192 bytes
SHA-256: ee64e2a734fda9a3860a67e44d39e1a946ca2f470941f83d2a26a5e95b5683ac
font_01_sfnt_off00010fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FA7 10980 bytes
SHA-256: 3fc239a4e0c8c09c96e7edab9dbe1b798c23131ba755de6c820586d88db417f6

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