Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab8a064c76d87c6f…

MALICIOUS

PDF

75.8 KB Created: 2021-03-03 04:44:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22ac80e62031dd9eae95a2623ef7c441 SHA-1: 58264c9849a628c3a22f3342029bf398917084e5 SHA-256: ab8a064c76d87c6f0e9a6564dec66c832327ae3c7d8c4132181109df26e799c3
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, strongly indicating malicious intent. It contains numerous embedded URLs, with the primary one being 'https://jacksth.ru/wix?keyword=possibilism+human+geography', likely serving as a phishing lure. The document body, though heavily obfuscated, suggests a theme related to 'possibilism human geography', further supporting the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=possibilism+human+geography
    • https://cdn.sqhk.co/wevujawej/6RGhhhb/lightroom_cc_app_free_download.pdf
    • https://cdn.sqhk.co/baziwuwe/4Rqiejj/skyblock_addons_beta_leak.pdf
    • http://ligumexijigab.getenjoyment.net/essay_for_grade_6_students.pdf
    • http://pimifawimonidij.mywebcommunity.org/rajitavofanasuvixopaw.pdf
    • https://cdn.sqhk.co/rawatajizefu/d4o0ghm/drill_master_circular_saw_69079.pdf
    • http://milanbeach.fun/is_mba_worth_it_in_canadafmyfv.pdf
    • http://therarbooks.com/818012809099njy7.pdf
    • http://cccckkkkkdd.space/citing_textual_evidence_worksheetk9ndf.pdf
    • http://vizit.store/bububoripaje51jky.pdf
    • https://cdn.sqhk.co/gulanuwe/cijibic/32321863226.pdf
    • http://rajenajodaf.iblogger.org/reading_comprehension_strategies_list.pdf
    • https://cdn.sqhk.co/kominepoli/SsDg5gj/nuluxomanidubaxut.pdf
    • https://cdn.sqhk.co/riwifesineji/qHiaXjg/vivasijufegufojaxu.pdf
    • https://cdn.sqhk.co/pabilere/5riihM0/famalemos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mepefixo.epizy.com/othello_act_1_scene_3_quotes_analysis.pdf
    • http://watenuwinigakek.epizy.com/16886048551.pdf
    • http://pepawelifebin.rf.gd/26183294733.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_off0000ec59.bin
56dbf8b46f46215b13230ae5601a14e7c311769b24db06b0428a6828a7d2e33a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC59 5476 bytes
font_01_sfnt_off0000fed2.bin
04d6bbb4f3b9bd8e30ef3f04e46f23dc9a42c21c25658c7735a17481ebc0f681		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFED2 10272 bytes

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