Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f30163b67d5c6a9…

MALICIOUS

PDF

77.5 KB Created: 2021-03-09 07:35:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5be7a2dfa2171cc4e751699fbfea1a58 SHA-1: 568ae3effa98592f3ae829be36d3da12b868e8b8 SHA-256: 2f30163b67d5c6a9d80a7328853c0e017692641d9fa022b1cc1e24d2a71e4c16
96 Risk Score

Malware Insights

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

The sample is a PDF file that contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the PDF content suggest it's part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://kuzutuzo.ru/award?keyword=temperamentos+transformados+tim+lahaye+descargar+pdf
    • http://fixegemixinazoj.22web.org/acneiform_rash_on_neck.pdf
    • http://xelasurugopu.mywebcommunity.org/how_to_clean_shark_professional_steam_mop.pdf
    • http://hopecommunitynaz.com/71483901421yt854.pdf
    • http://rankingcoach-apps.com/prevention_through_design_principlesl3ss6.pdf
    • http://present-mag.ru/83208809841kbomn.pdf
    • http://mmeueue.space/23267505187ji5cv.pdf
    • http://magnifioco.site/ruzadofopunamifudqr50s.pdf
    • http://flylovel.com/pevabolulae1kdk.pdf
    • http://ruvujagefeko.mygamesonline.org/carl_rogers_on_becoming_a_person_1961_reference.pdf
    • http://saudiautoinsurance.com/xovorutidn6l33.pdf
    • http://boost-store.net/9319666242mmlvg.pdf
    • http://idealslimitalia-oficial.site/can_i_connect_bluetooth_mouse_without_receiveru8d9y.pdf
    • http://ozalupa.space/2000_breckenridge_park_model_owners_manual6tpjc.pdf
    • http://dolinunuridaku.iblogger.org/kushiels_dart_tv_series.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fufibilola.epizy.com/jorep.pdf
    • http://dejoxatumiki.rf.gd/13311087088.pdf
    • https://ae0ecf71-49bb-4ac4-bba4-d0f2a20d1af9.filesusr.com/ugd/668a47_01806d732c164c2ea022cd8cea1f7024.pdf?index=true
    • http://sotegoduwibadaj.epizy.com/kobalt_hvlp_spray_gun_parts.pdf
    • http://famomijis.onlinewebshop.net/network_topology_download.pdf
    • https://eadb47d6-6712-4ecd-aa5a-2cdcf2d90b86.filesusr.com/ugd/c844bf_f5e1cbff13af4259ab0bb14090b011a3.pdf?index=true
    • 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_off0000f01f.bin
6d59076de14e796eeaf4aad66a7663f6dfff448e0b954f1c0db6186f3a05a612		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF01F 5620 bytes
font_01_sfnt_off00010316.bin
757bca72c0290c868eb2cccbd57fed1278d7aacdd44b7aaa56a38c3021c1aeaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10316 11692 bytes

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