Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb64170fcb2b5bc…

MALICIOUS

PDF

118.8 KB Created: 2021-03-12 00:45:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a703758229d06d9aac5660dca0bdc02c SHA-1: b29c25660886d0ead7d2e6d532c04bbc19d0fe28 SHA-256: 9cb64170fcb2b5bc696eb819db2dd67b832fee57e806864dab7595c8dab59a5b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9883

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://seumenha.ru/strik?utm_term=how+to+start+revolution+eu4
    • http://sdfafq.info/zunogibokewizopuraicjfu.pdf
    • http://kozevoviwepok.iblogger.org/losimusisefiru.pdf
    • http://zuvels.xyz/duragenizoswbhw0.pdf
    • http://wimixolumow.iblogger.org/mipapowoza.pdf
    • http://damvglaz1.xyz/tips_for_stopping_bingingmbbwa.pdf
    • http://alkostore.xyz/how_to_reset_brother_hl-l2360dws911v.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/tetofamuxulil/boyle_s_law_and_charles_law.pdf
    • https://s3.amazonaws.com/wizidimawag/redajuzigor.pdf
    • https://s3.amazonaws.com/redegelesibif/wakut.pdf
    • https://uploads.strikinglycdn.com/files/c45cbf65-946a-4215-80e8-cc08da7430a7/stairway_to_heaven_meaning.pdf
    • https://s3.amazonaws.com/rizijubovapuk/wakeriseragilef.pdf
    • https://s3.amazonaws.com/sitozi/duminojifake.pdf
    • https://uploads.strikinglycdn.com/files/ddacd7fa-6cb8-468a-8b2d-6a23f18417d2/ruud_water_heater_reviews.pdf
    • http://fagufobukabovu.epizy.com/21330051568.pdf
    • https://s3.amazonaws.com/pafiganovavi/43692337786.pdf
    • https://uploads.strikinglycdn.com/files/9d822bce-3993-4a7f-a6ab-7cb2400cc45f/how_much_is_a_2015_jeep_wrangler_sport.pdf
    • https://s3.amazonaws.com/zalomi/american_commando_games_free_for_android.pdf
    • https://uploads.strikinglycdn.com/files/f5f1400b-feb6-48ee-9fc2-c0243e0dca4b/how_to_say_no_to_a_man_without_hurting_him.pdf
    • https://uploads.strikinglycdn.com/files/8440772a-f307-4d1f-8600-3492ae504dfa/fezipusovid.pdf
    • https://s3.amazonaws.com/wulagisi/samsung_chromebook_xe303c12-a01us_install_windows.pdf
    • https://uploads.strikinglycdn.com/files/2c5ee485-06ed-4ffb-b3f1-55404735c344/63461131785.pdf
    • https://s3.amazonaws.com/kigavanus/xapimixi.pdf
    • https://uploads.strikinglycdn.com/files/dab08945-cf58-48fc-aab0-6f34c9147a3b/13689463172.pdf
    • http://dijawazuk.rf.gd/suxezigebukugewoto.pdf
    • http://nivadekobon.epizy.com/leviwon.pdf
    • https://uploads.strikinglycdn.com/files/540f4355-0c05-4548-b70d-d6c3cc474e4e/vulasupafexikazopat.pdf
    • https://uploads.strikinglycdn.com/files/3283e01c-6e8f-4ef5-ba1d-64b20b1d38c3/how_to_clean_the_filter_on_a_ge_potscrubber_dishwasher.pdf
    • https://s3.amazonaws.com/lorerexeg/bubbles_shooter_games_free.pdf
    • https://uploads.strikinglycdn.com/files/bc8ebff2-3de6-4d6a-bb04-c83cde0415b2/62286530833.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001238d.bin
7128f67e392065ad09809e5f405336c12ccac63f8bba4b32fed425c6337f1248		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1238D 32652 bytes
font_01_sfnt_off000188d1.bin
6231d5b5f7eea8d5474514f67217ce8746e6f393fde39ebdffd98235fa0d7b5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x188D1 4764 bytes
font_02_sfnt_off00019923.bin
7c873470d58abed25927026d0e971ee6f75cd135f36ce1c0fcf412bd1795b1af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19923 11032 bytes
font_03_sfnt_off0001be36.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE36 4324 bytes

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