Malicious PDF — malware analysis report

Static analysis result for SHA-256 10663c54b1dfcbe4…

MALICIOUS

PDF

78.4 KB Created: 2021-04-11 18:21:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 1df2afa59bd7f9efe3335813b61e055a SHA-1: 51d55bc1eda39ba3070567ba0bcf8bc3e608021b SHA-256: 10663c54b1dfcbe4b3480688108c51456a538e79a281f8369df88048c4467e95
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/strik?utm_term=huckleberry+finn+1993+online+free PDF link annotation
    • http://lobulezinovux.medianewsonline.com/tinizedubenajoridalitu.pdfIn PDF document text
    • http://dirupomavi.iblogger.org/autobiography_of_a_pen.pdfIn PDF document text
    • https://jeporifitev.weebly.com/uploads/1/3/4/2/134265357/6214742.pdfIn PDF document text
    • https://zabidikigez.weebly.com/uploads/1/3/4/5/134594795/kizoxekopaw_gunerojuwasa.pdfIn PDF document text
    • http://getepitisux.mywebcommunity.org/filirumemiwujedaparufasu.pdfIn PDF document text
    • https://cdn.sqhk.co/xalibolopov/aibiejh/itopit_near_me.pdfIn PDF document text
    • http://waparudadip.mywebcommunity.org/o_poder_simblico_pierre_bourdieu_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rexukewanej/jeOAnjb/xajawezolen.pdfIn PDF document text
    • http://jalosus.mygamesonline.org/grile_istorie_academia_de_politie.pdfIn PDF document text
    • http://tiriruno.sportsontheweb.net/4420945588.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/kofabube/20040445060.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/kenizojedeselitanumimop.pdfIn PDF document text
    • http://sazororazinub.epizy.com/85597487503.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5e5ad1b-179d-4b12-99d6-6759589ecd26/zevigurajifuvulogirumixug.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/whirlpool_wdt720padm0_not_draining.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/54149657785.pdfIn PDF document text
    • http://voduzase.rf.gd/74732405455.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9113050-2703-4a92-b4f0-fb42b380100c/63157891542.pdfIn PDF document text
    • http://mosararivifu.rf.gd/safety_1st_onboard_35_air_infant_car_seat_compatible_stroller.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/wukagupaxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e06ebd41-fd78-4d95-afcd-529977a9a24b/how_wide_is_the_2020_lexus_rx_350.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c6b5099-6e41-4744-bfad-cad21915638b/somibozin.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CA 5128 bytes
SHA-256: 3b3e0fb7ce7877505cc7d54bbee666f1e8ca2d013d1de4bf26917f762266f1be
font_01_sfnt_off00010667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10667 11168 bytes
SHA-256: 5c2041bf87e43a923c1d14137993baf5136b0079fce6e6d4da6bad2e27a26cc7