Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ef9ece49c72bd3…

MALICIOUS

PDF

78.6 KB Created: 2021-04-27 23:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f69c8791155a115a0df3de807ac34aa SHA-1: 7b38291fc89e4c70b9203214673c3b629039569d SHA-256: f6ef9ece49c72bd386a013ef12bbf9ec02f680f0adfbf65eb5b938d0620d8638
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous external links, with one heuristic specifically identifying a 'PDF_SEO_LINK_FARM' suggesting a large number of outbound links. Another heuristic, 'SE_ADVANCE_FEE_SCAM_LURE', indicates the document's content is designed to trick users into believing they will receive a prize or benefit, requiring them to interact with links. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' further supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://jumiwimov.ru/strik?utm_term=boston+market+mac+and+cheese+vegetarian
    • http://ratedewu.scienceontheweb.net/taluzuzawon.pdf
    • https://cdn.sqhk.co/vemudumuxixu/rNzcgeG/retro_arcade_store_reviews.pdf
    • https://cdn.sqhk.co/vagekoxes/tcieAmW/71020918919.pdf
    • https://cdn.sqhk.co/popuzanuguw/hgchdii/zombie_catchers_mod_apk_android-_1._com.pdf
    • http://ig-copyrightnotice.com/80s_music_artists_female3i4wu.pdf
    • https://cdn.sqhk.co/puxedimuwo/ddFDXJt/santa_run_2019_auckland.pdf
    • http://xajoboki.iblogger.org/dapumebudagulejokobolon.pdf
    • http://gejokakop.mygamesonline.org/ableton_live_10._1_manual.pdf
    • http://nefozufovi.scienceontheweb.net/20036946412.pdf
    • https://cdn.sqhk.co/sovajepuxe/diahhGc/divinity_original_sin_2_elementalist_mod.pdf
    • http://ozalupa.space/55949620641jla81.pdf
    • http://meetly.space/xujalozoxafadurogobiveroxdoe2.pdf
    • http://datingdate.site/40580099952vg1r4.pdf
    • http://optalpha.com/ford_ids_cracke30uk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/61c6db7d-192b-48c8-a5b3-725b9896c874/how_to_form_a_workout_plan.pdf
    • https://uploads.strikinglycdn.com/files/a3425cb8-0eb3-4891-9bf3-cce232da8c1c/korevawexitikolefebu.pdf
    • https://18b62485-dce0-4e35-9712-b1d1f13fcb23.filesusr.com/ugd/296484_31f4d99b31b54fb9af99efc994c5708e.pdf?index=true
    • http://jojomuge.epizy.com/3d_printer_history.pdf
    • http://gajamozaxekega.atwebpages.com/cognitive_psychology_approach_means.pdf
    • https://uploads.strikinglycdn.com/files/4006b553-d039-4c00-b5cc-3981eb005ff8/xovagis.pdf
    • http://vubenotabajumem.epizy.com/viking_longship_paper_template.pdf
    • https://be1d055c-b83b-422e-9e68-1bf13cef350c.filesusr.com/ugd/5b1e3c_a3e344ecf4724b1fac4a3cbca9988f96.pdf?index=true
    • https://uploads.strikinglycdn.com/files/5eabf6c1-f632-40ac-a54a-2d365720c73f/possessive_nouns_quiz_for_grade_3.pdf
    • http://fixelelediv.epizy.com/vojakepividinixizepabo.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_off0000f4dc.bin
ea336ce7b4864e1749202764be05caa1e275e21e34ec9335107f981148bb1af1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DC 5496 bytes
font_01_sfnt_off0001076e.bin
b039bc68f97bd6389db7fefb76ea4a6d2048f78567bcce78dee16597a59ad28f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1076E 11008 bytes

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