Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c0409df13e706a2…

MALICIOUS

PDF

77.0 KB Created: 2021-02-17 16:04:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05b92ddd4eed9d471e07171734811879 SHA-1: 67579bca745807217a4edd1f0ad8990b7a45c522 SHA-256: 9c0409df13e706a225eca58445518f42b98e43748b99a6229907ed35c2cee1ff
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution campaign. The '7 days challenge diet' lure is a common tactic to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/aws?utm_term=7+days+challenge+diet
    • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/pilenetizikura_mumozivupakuk_rofebolopi.pdf
    • http://katagonubazi.22web.org/61545145791.pdf
    • https://baboxubawuxi.weebly.com/uploads/1/3/4/6/134666135/cea812590.pdf
    • http://vemasujananexu.22web.org/suwedisipezupu.pdf
    • http://goproonly.com/call_of_duty_warzone_zombie_eventqeewb.pdf
    • https://jajujawu.weebly.com/uploads/1/3/0/8/130813132/ad5649a32cf4.pdf
    • https://mugijimefulex.weebly.com/uploads/1/3/1/6/131606494/dilimefaku.pdf
    • http://umkatrade.ru/picture_perfect_crossword_chapter_18_puzzle_261hsg45.pdf
    • http://menavuselixeba.iblogger.org/794133364.pdf
    • http://fakabegapufiri.22web.org/spring_boot_jdbctemplate_connection_pool_example.pdf
    • https://rawiranuxox.weebly.com/uploads/1/3/4/6/134618620/matuvafelexafigof.pdf
    • http://begdas.fun/how_to_emulate_android_on_pc004un.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lojetewope.epizy.com/rejubetelerepoguj.pdf
    • http://fuxalobel.rf.gd/acknowledgement_receipt_template_for_payment.pdf
    • http://nipufafinera.epizy.com/chrome_freezes_at_0_seconds.pdf
    • http://dafawesag.epizy.com/android_app_meaning_in_tamil.pdf
    • http://fojamemu.epizy.com/55891811787.pdf
    • https://s3.amazonaws.com/fowonaxul/accident_report_today_free_state.pdf
    • https://s3.amazonaws.com/vidadaviwal/vifosubi.pdf
    • https://s3.amazonaws.com/dezajok/deep_pocket_king_size_flannel_sheet_sets.pdf
    • http://dowuxufab.epizy.com/94091936815.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_off0000f014.bin
ccdc41169313076ac5fc5371ae0f981a05cbbec5fedf0fb35bd6971721fb57b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF014 5192 bytes
font_01_sfnt_off000101ce.bin
d8d99d2c2c500aaeb26d8f85d76ca3675d8dfd691b608718408c4f5cc46de5f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101CE 10832 bytes

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