Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6347ff1006394bc…

MALICIOUS

PDF

77.9 KB Created: 2021-04-06 00:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b5831fee7d4838dd2d7f7aa7a1c33f3 SHA-1: 7c0f81a09496227dc3d6b774798b5e54f1c36940 SHA-256: f6347ff1006394bc4830fb5ac2e1f980d71f94db2c51b871c2b8da3ae3023a31
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

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://midufefew.ru/wix?keyword=conexa+internet+review
    • http://katermore.ru/avast_antivirus_free_for_pc_offlineb9hpf.pdf
    • http://pelinebaj.mypressonline.com/alergia_a_aines_tratamiento.pdf
    • http://tideparipawovu.mygamesonline.org/puxanogeriti.pdf
    • http://creditscoretracking.info/gesigamucbtb.pdf
    • https://static.s123-cdn-static.com/uploads/4390323/normal_5fdc9873b1fdf.pdf
    • https://cdn-cms.f-static.net/uploads/4472208/normal_600de76ec6880.pdf
    • http://kebenoda.scienceontheweb.net/daxinakitadekomevesodu.pdf
    • https://cdn-cms.f-static.net/uploads/4490256/normal_6040207c2c4cc.pdf
    • http://kosamaritaj.getenjoyment.net/jacques_derrida_of_grammatology_summary.pdf
    • http://wativeb.mypressonline.com/jipavopukojupupifipeka.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/34ff802a-12af-4064-812f-a9420bfbeb96/craftsman_front_tine_tiller_5.5_hp_24.pdf
    • https://uploads.strikinglycdn.com/files/b7367341-8757-41a8-a872-fe95c8c8cd5e/hp_laserjet_p2055dn_wireless_driver.pdf
    • https://2c9641c8-5874-4869-9b94-f1378e60aa6b.filesusr.com/ugd/efc1f6_6a77e66c35d14e61b6ea3629c095a23d.pdf?index=true
    • https://aabf49e0-5477-4fd2-8456-a986ef8f2a87.filesusr.com/ugd/9e14ca_ead83799154c42f592219f4be4807c10.pdf?index=true
    • http://mugekalamiwatek.epizy.com/sijimawoligutotirivazuw.pdf
    • http://doganofikaraw.epizy.com/ventas_en_abonos_de_bienes_muebles_e_inmuebles.pdf
    • https://uploads.strikinglycdn.com/files/c6c4041a-49dd-4b79-85b6-a8e596a6d9eb/bulasi.pdf
    • https://uploads.strikinglycdn.com/files/dcc2f017-8ecf-4062-b072-5a080ee268c4/who_invented_the_lightbulb_and_how_many_times_did_he_fail.pdf
    • http://joxepivebafugig.epizy.com/charges_of_ions_answer_key.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e92c.bin
ad6883d45168562ba3bdb68e82bce71c6c7bb0ab37f757218e622e3da669de8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE92C 3692 bytes
font_01_sfnt_off0000f627.bin
86c06e63e892a4f1c5c95de0a4a1c56392aad831bf7798c14d0703530ed2b713		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF627 4596 bytes
font_02_sfnt_off000105e7.bin
3c1480d8db61e13aaf99561aebd375c9e94b29cc6a142c518998a67edd65f2a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105E7 10728 bytes

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