Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d8aeedbda50b6c0…

MALICIOUS

PDF

82.3 KB Created: 2021-03-13 18:42:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 9594ceba6dc9e8e7cc11a1dc12523620 SHA-1: 2a354136f35c9258b3950064ed766ec71551db76 SHA-256: 9d8aeedbda50b6c01aee6a88e98588e64c34d3847bb1083ab0c10709c79f2882
142 Risk Score

Malware Insights

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

The PDF contains multiple external URIs and is flagged as a link farm, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of keywords like 'deepfake apk' and a download lure in the document body further supports a phishing attack pattern aimed at tricking users into downloading potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wix?keyword=deepfake+apk+english+version PDF link annotation
    • http://wotodusasesode.iblogger.org/zubumizenasax.pdfIn PDF document text
    • http://mscredit.info/putamizatavevkwcrd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481170/normal_5fcee8a3898b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446045/normal_603eea48100ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382779/normal_5fffac10d13c1.pdfIn PDF document text
    • http://vazutokidoxe.iblogger.org/cyberlink_youcam_7_deluxe_full_setup__crack.zip.pdfIn PDF document text
    • http://itverys.space/tp-link_tl-wr841nd_als_access_point_einrichtenxzylz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480399/normal_6022846acc6c2.pdfIn PDF document text
    • http://cyberlife.store/is_aggression_normal_in_puppieso59ym.pdfIn PDF document text
    • http://bestrongbyg.com/ny_tirsa_rate_manualkux2i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_47c4b6bbcdd5440aaa348bbf71d6c341.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zabevog/binirosafemixepetu.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/99920524693.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/swot_analysis_reference.pdfIn PDF document text
    • https://0306adf0-382e-42f1-903d-71c3961c97f1.filesusr.com/ugd/7ff653_14e066937a2e464bbf9d65f8eac7326c.pdf?index=trueIn PDF document text
    • https://1cbf0fd9-62af-4102-a3dc-982f361539e7.filesusr.com/ugd/bfbc46_80b55073e1464d689345a352a7e667ed.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mejobu/assimilation_linguistique.pdfIn PDF document text
    • http://zesakek.epizy.com/lokekamimifopepaguvowoboj.pdfIn PDF document text
    • http://wegamaluperetuj.atwebpages.com/vemisibulametut.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/60314878110.pdfIn PDF document text
    • https://c1bbde11-5cda-4f7c-8b74-b2fe90b484f5.filesusr.com/ugd/1c8c6c_9083f2b8a3174322bfb692e97901fc6b.pdf?index=trueIn PDF document text
    • http://nejarisiwudu.atwebpages.com/ridgid_18v_1_gallon_air_compressor.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE51 5288 bytes
SHA-256: e8d92d813077e0040115f89ab54d0038464b88b5f2e3c466c4950a5cbb1bc9d7
font_01_sfnt_off0001005d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1005D 11012 bytes
SHA-256: f63f245f6b937caa81bdc0a8579da87b5982af9baf387629568115e33ac83964
font_02_sfnt_off00012619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12619 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e