Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a0462726645a15…

MALICIOUS

PDF

74.6 KB Created: 2021-05-09 00:14:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 64d8bc52ad9196c64ed5fe5c96ffe05e SHA-1: 0008c6478e11194951a1bd9ffc0eb26e1b854b87 SHA-256: 92a0462726645a157ad1773581fb9a93bba1e30b5067de95ccb56cb1d6a769f4
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm or phishing lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights this behavior, indicating the document's purpose is to redirect users to external sites, likely for malicious purposes such as credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://seumenha.ru/strik?utm_term=good+to+great+and+the+social+sectors+pdf PDF link annotation
    • https://cdn.sqhk.co/dodamewope/pEGig5R/25596000532.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488339/normal_60071c7d9f06a.pdfIn PDF document text
    • https://cdn.sqhk.co/definuseju/SheTHXc/fenutunidox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377717/normal_60155d02de063.pdfIn PDF document text
    • https://cdn.sqhk.co/dawafawux/gfhhhid/bofetonipatagasuvagusaw.pdfIn PDF document text
    • http://jirekakeduvinij.22web.org/kathi_theme_music_free_320kbps.pdfIn PDF document text
    • https://cdn.sqhk.co/nugopanage/czWhf6c/best_death_drop_gif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454040/normal_5fd642958265f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367923/normal_603a64db506d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476768/normal_5ff3e628b7ce2.pdfIn PDF document text
    • http://megantv.site/550069867930yh39.pdfIn PDF document text
    • http://sell-toclick.online/37115963922vqqll.pdfIn PDF document text
    • http://ogranicbio.fun/24710329631pyw5q.pdfIn PDF document text
    • http://sarkife.site/what_does_a_goldfish_sound_likecfod9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472475/normal_5fe5033386ff9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383792/normal_604467ffe8b1d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_2b718fc147d642a4a821b68e71de86ef.pdf?index=trueIn PDF document text
    • http://rawuwad.epizy.com/66810656116.pdfIn PDF document text
    • http://sisawujeza.rf.gd/brooding_lyrics_by_victoria_orenze.pdfIn PDF document text
    • https://73f4d879-981c-49fe-abc7-520f36a14a84.filesusr.com/ugd/b77b08_2f7c5cc5d7134b7a86ef7b3ea6ae0ca4.pdf?index=trueIn PDF document text
    • http://jumaguw.epizy.com/how_do_you_factory_reset_a_zmodo_nvr.pdfIn PDF document text
    • https://fad58b31-c538-4d3f-828d-7998eec853b9.filesusr.com/ugd/7e6083_307ff2b24f1b4403b9dd060f69f012db.pdf?index=trueIn PDF document text
    • https://383fd46b-cc41-47b7-9379-19c19d7bb1fe.filesusr.com/ugd/81c43a_a9c07e2bec8247e0ba34af40dcdfafcf.pdf?index=trueIn 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_off0000e5cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CC 5448 bytes
SHA-256: 60226a438beb28717c1713d663bca3ddd77291110125aac8233ac04111c24e8e
font_01_sfnt_off0000f854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF854 10800 bytes
SHA-256: 3ae5977aa9c963276cd630399e721471581ebee664e3538afb539bf7e9ea57be

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