Malicious PDF — malware analysis report

Static analysis result for SHA-256 df12c48cab29f1d0…

MALICIOUS

PDF

76.6 KB Created: 2021-03-21 02:41:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 326e297e7b784469060750fd1324c3fc SHA-1: 5d4c312bcc5f084489b96441815c4a88c99200a3 SHA-256: df12c48cab29f1d025f6e2decba215f85f2a7f189dba4ff0f967e59217ced9a4
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to 'https://jacksth.ru/award?keyword=enlaces+metalicos+pdf', suggesting a phishing lure related to metallic links. While no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used for delivering malicious content or redirecting users to phishing sites.

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/award?keyword=enlaces+metalicos+pdf PDF link annotation
    • https://nawenakugod.weebly.com/uploads/1/3/6/0/136048640/kemogirazurokobimu.pdfIn PDF document text
    • http://cocobeautybar.ca/955177021759k58g.pdfIn PDF document text
    • http://burrrhey.tech/74736287179vn383.pdfIn PDF document text
    • https://jojuvuzi.weebly.com/uploads/1/3/1/8/131871720/9918177.pdfIn PDF document text
    • http://vutatux.22web.org/12058325311.pdfIn PDF document text
    • http://love-cosmetics.shop/914427492376cool.pdfIn PDF document text
    • http://espaceclient-cmb.com/sogefunudopufole4m619.pdfIn PDF document text
    • http://wexypay.icu/zuguxataguxeuiall.pdfIn PDF document text
    • http://creditreportus.info/pakaposaje5uo.pdfIn PDF document text
    • http://arfeshome.com/international_business_the_challenges_of_globalization_8th_edition_by_wild__wild_pearson_publishingh0gvw.pdfIn PDF document text
    • http://esportzmlevent.com/complementary_and_supplementary_angles_worksheet_answer_keyeqfsh.pdfIn PDF document text
    • http://studyweb.site/chiru_gang_leader_songs_freebfuq5.pdfIn PDF document text
    • https://famogapev.weebly.com/uploads/1/3/1/6/131606489/3b155674.pdfIn PDF document text
    • http://lotto-investclub.com/how_to_reset_roku_3_remote_controll1nfj.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/tenunud/5144629749.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/wiwulusasozakov.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/b1_archiver_free_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/android_busybox_static_binary.pdfIn PDF document text
    • http://tosakiviga.rf.gd/bakri_palan_ka_form.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/what_were_the_major_causes_of_the_renaissance_and_the_reformation.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_off0000eabb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABB 5164 bytes
SHA-256: b179733934a99bb832f7df64ee3bdaa12bad10de18aadd507976ddcfc44d0d95
font_01_sfnt_off0000fc3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3C 12180 bytes
SHA-256: 805a0d7b2b5ae09ebdbff436b21f325fae1587783cea24fe0cc89cc4e7c9bd90

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