Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd02a9fb33b2d0ee…

MALICIOUS

PDF

69.4 KB Created: 2021-03-16 07:54:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ada3662a9df8e35a10e8c2d4c3ec7f8 SHA-1: d3e326ae581d0968cf599de0a21c9b119aae6d9b SHA-256: bd02a9fb33b2d0eecaa0a1116e2f0f5f49cbcbdee7a8da4ebdab857e3aa1f2f4
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. The presence of an external URI pointing to 'maypoin.ru' with a keyword suggesting a game hack, combined with a heuristic indicating a visual download button, strongly suggests a phishing or social engineering attack aimed at tricking the user into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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://maypoin.ru/wix?keyword=simpsons+tapped+out+hack+ios
    • https://static.s123-cdn-static.com/uploads/4383918/normal_60062e79d8df5.pdf
    • https://cdn.sqhk.co/sugutomipu/ERjjjin/54187087791.pdf
    • http://rokexulom.22web.org/student_bio_data_form_sample.pdf
    • https://cdn.sqhk.co/fiziroluj/ijjgYhf/dowebarufapozasajuw.pdf
    • https://static.s123-cdn-static.com/uploads/4455876/normal_5fddd9048a62e.pdf
    • http://simekavo.22web.org/what_is_it_called_when_the_sun_goes_down_early.pdf
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5fcf9b2872c29.pdf
    • https://cdn-cms.f-static.net/uploads/4491665/normal_5fea30d81c055.pdf
    • http://xudogiborijum.66ghz.com/xijurol.pdf
    • https://cdn-cms.f-static.net/uploads/4444856/normal_604fe808a3fe3.pdf
    • https://cdn.sqhk.co/zerurukoraju/wjdicSM/94278916748.pdf
    • https://cdn.sqhk.co/nekuripafi/htvMgfg/maroon_colour_meaning_in_marathi.pdf
    • https://cdn.sqhk.co/sivujazozis/dCCjbje/heroes_of_the_storm_arthas_build_guide.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://ronojegev.rf.gd/59214860332.pdf
    • https://uploads.strikinglycdn.com/files/cb13577d-ecf5-439b-9ed6-8bfd8cc025d6/nibutukixep.pdf
    • http://gawukafiwinexi.epizy.com/99604833172.pdf
    • http://dujisuga.epizy.com/aws_elasticache_cloudformation_template.pdf
    • http://bozitelededenox.epizy.com/piloxapupib.pdf
    • https://uploads.strikinglycdn.com/files/e9853d9b-f17b-4b94-9edc-102bf1aa2227/what_is_functional_analysis_in_behavior_therapy.pdf
    • http://rebokomixuxoj.epizy.com/jabugamarumob.pdf
    • http://jedejuleler.epizy.com/pugegevopezitobonokot.pdf
    • https://uploads.strikinglycdn.com/files/1c415493-d3c4-4cf6-890d-5bbce54e1a5a/wavuzeziruramefunevix.pdf
    • https://uploads.strikinglycdn.com/files/83008b70-3ae1-4091-a21e-b777835a9093/98472064220.pdf
    • https://uploads.strikinglycdn.com/files/005b24ab-6ebc-482d-b9ad-230799422c10/shimano_nexus_8_gear_shifter.pdf
    • http://deroluzotuz.epizy.com/apprendre_l_anglais_des_affaires.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_off0000d1d3.bin
774ec61b76ca6363b11810b8f4accde54b5446ac6ee354367e5637d8b076789a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D3 5352 bytes
font_01_sfnt_off0000e3e1.bin
a6900368b2be906c10f3ebd61b0b6f15bb54df28a08b07005afa0baf1a12c50b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E1 10648 bytes

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