Malicious PDF — malware analysis report

Static analysis result for SHA-256 192b31c2cf0ae1d5…

MALICIOUS

PDF

75.9 KB Created: 2021-03-31 20:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6df0290ede4fa3fa5a2905a5635ff136 SHA-1: 2f47bf7ce8e246a58afcda597ec6bbd9aa4deff4 SHA-256: 192b31c2cf0ae1d593d9f9978ebf422f162df2b859fb5417af4e4aa89f50746b
96 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site or download further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://botokaw.ru/123?utm_term=kya+baat+hai+song++mp4+tinyjuke
    • http://help-verification.com/how_to_bypass_nordictrack_ifitcvgsq.pdf
    • http://vibawukukar.iblogger.org/jurnal_biosistematika_hewan.pdf
    • http://beautysss.site/how_to_set_rain_bird_sprinkler_controllerfpqmi.pdf
    • https://kofukupapakube.weebly.com/uploads/1/3/4/5/134586312/neworexijip_mazenonuzefuxa.pdf
    • https://waxebusesu.weebly.com/uploads/1/3/4/7/134770319/7659462.pdf
    • https://notowupoguja.weebly.com/uploads/1/3/5/3/135316513/b7e06b2937265.pdf
    • http://nenonazuf.scienceontheweb.net/zoranafakujaxuxijoz.pdf
    • http://formblckr1.xyz/semafotuwutivaiq96n.pdf
    • http://gaxesujite.medianewsonline.com/67742411636.pdf
    • http://xupulakikovuxo.mypressonline.com/rainbow_fish_display_tank_youtube.pdf
    • http://dekovag.mypressonline.com/how_to_remove_hot_tub_control_panel.pdf
    • http://bapatavusirave.mygamesonline.org/15090104482.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • http://samelike.site/45269584068lpxuu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sonopuzogex.rf.gd/roof_mount_brackets_for_sunsetter_awnings.pdf
    • https://uploads.strikinglycdn.com/files/d80bb242-1097-45aa-863d-c143852a9be4/57917001082.pdf
    • https://uploads.strikinglycdn.com/files/b05c2d68-cb9d-4a7f-bd2a-528ff01330e9/explain_the_7-ps_of_marketing_mix_for_services.pdf
    • http://beliraguw.onlinewebshop.net/68783792918.pdf
    • https://uploads.strikinglycdn.com/files/61f8c18d-1e9e-46a2-84f6-2f309257b115/gefemijesadefubov.pdf
    • http://sabozet.epizy.com/rosario_dela_preciosa_sangre_de_cristo_para_sellar_la_familia.pdf
    • http://zevusup.atwebpages.com/multiple_intelligences_gardner.pdf
    • https://uploads.strikinglycdn.com/files/64151244-a9a3-4670-adbd-d2f7f5110ccd/beats_solo_hd_wireless_adapter.pdf
    • https://uploads.strikinglycdn.com/files/4c4ea843-d3b9-4bff-82ef-be72137e5765/43982686623.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e895.bin
9ccd5b0904cb7ea09e9c915c8fc5cdc29ff5040f968dc4db9cd3c880b909fdf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE895 5544 bytes
font_01_sfnt_off0000fb63.bin
4f4e97630bbb561447eed7fb48a31476cb0bbc5d0cc5166c3c0f54d3b4c17590		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB63 11260 bytes

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