Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c70a5c8d846c0b…

MALICIOUS

PDF

84.7 KB Created: 2021-03-19 00:17:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: deddc6a4d18e2fd9a873fea3e623da1f SHA-1: a5693cca74f43ae6c7d71566ea211d25ab57104b SHA-256: d0c70a5c8d846c0b63d34ce764a4eb37f5cbc178144ae9043df971e1e4d42ba2
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of external URIs. The document body, though heavily obfuscated, references 'Pandora premium free apk 2020', suggesting a lure for potentially unwanted or malicious software. The embedded URL points to a domain associated with such content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/wix?keyword=pandora+premium+free+apk+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4386334/normal_5fe3bce8d9223.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446762/normal_5ff8459460d66.pdfIn PDF document text
    • https://cdn.sqhk.co/fekoguwiwu/ejjXich/15755471710.pdfIn PDF document text
    • https://cdn.sqhk.co/mobixipotex/eiayfif/diskon_diamond_via_id.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_602c56f618777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454170/normal_5fcdfd6af0da8.pdfIn PDF document text
    • http://lewijufe.sportsontheweb.net/how_to_pair_sena_20s_evo_to_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422368/normal_601b89a7d8c21.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459645/normal_5ff0d8ae6fb70.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvivemu/4gdo4gh/59499478443.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454668/normal_6052ebc1caa0c.pdfIn PDF document text
    • http://ravovenovibu.medianewsonline.com/samsung_rf268abrs_ice_maker.pdfIn PDF document text
    • http://xafesuvorolivig.scienceontheweb.net/53973437087.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/guledoloxured.pdfIn PDF document text
    • http://jojiluvapesoj.22web.org/54307564436.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nawuvud/zemujopiguv.pdfIn PDF document text
    • http://gonurorirezode.epizy.com/boviwugelatufaroxomebamuv.pdfIn PDF document text
    • http://lixugojobipiwof.epizy.com/root_android_6._0_1_no_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/starbucks_frappuccino_menu_no_caffeine.pdfIn PDF document text
    • http://mefomoximene.rf.gd/2524508111.pdfIn PDF document text
    • http://zaxilofekuji.epizy.com/the_ego_and_the_id_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/41998707814.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_off0000f6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E7 5316 bytes
SHA-256: 3cef82c5f69b9293187e81a13a2e45cf843b00d7f13a114265699f0ddde9876a
font_01_sfnt_off000108f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108F0 10956 bytes
SHA-256: 51d3f7bd93b9ef085348f47be43294716742b22fdaed770ec792bdfbf63bd7fe
font_02_sfnt_off00012e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E8B 16088 bytes
SHA-256: 67bcfb7c388726f5c3b45134396d4daeb52989b52d679508e6f393a01196499c

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