Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd373197b8e198fd…

MALICIOUS

PDF

132.7 KB Created: 2021-03-23 17:08:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e82212c4ecaa7a5157e5b9216e0567bb SHA-1: 7cb937ca19c6004f075a1d99985601cf82272956 SHA-256: fd373197b8e198fde9af06c76f2e9fb8c086977e32c3e369ae30e427ba31772a
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains embedded URLs that likely lead to phishing content or further malware. The presence of PDF_URI and EMBEDDED_URL heuristics confirms the sample's intent to redirect users to external resources.

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://xezojetit.ru/wix?keyword=selective+incapacitation+meaning
    • https://cdn.sqhk.co/kajipazuto/hjia4je/barbershop_vs_hair_salon.pdf
    • https://cdn.sqhk.co/baxorurifina/aBjajh1/49836263058.pdf
    • https://cdn.sqhk.co/suxupijisajo/ial01Ps/26069180231.pdf
    • https://cdn.sqhk.co/feripamapuv/crfqfih/wamuvobemaguzowawawef.pdf
    • https://cdn.sqhk.co/widagawinud/jiijdjd/vixatiwala.pdf
    • http://gawudubigojan.getenjoyment.net/navukos.pdf
    • http://mikovil.mywebcommunity.org/88453346443.pdf
    • https://cdn.sqhk.co/rogevuzazi/KdhbVsp/92956643618.pdf
    • https://cdn.sqhk.co/sojowidaz/FQLghgh/metal_soldiers_2_game_online.pdf
    • https://cdn.sqhk.co/wezopexa/Byt1hfg/95234355864.pdf
    • https://cdn.sqhk.co/zesuxetirano/irryDgd/tropical_fish_coloring_sheets.pdf
    • https://cdn.sqhk.co/letarezetap/jjgcjiX/bluestacks_hd_app_player.pdf
    • https://cdn.sqhk.co/rizitewav/igPb9hj/tofosavakojoxitij.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/41c4bf03-4149-4eb7-8851-86e27a1241d7/malixalitikogagufanadi.pdf
    • http://suwuriru.onlinewebshop.net/43391445250.pdf
    • https://uploads.strikinglycdn.com/files/0bd575e1-6e1d-4775-b2f4-3e296b7eadc4/2008_john_deere_gator_hpx_4x4.pdf
    • https://s3.amazonaws.com/vutame/4850732988.pdf
    • https://uploads.strikinglycdn.com/files/e212579a-9186-4c40-b82f-d2816a46e5b4/la_biblia_fue_escrita_en_hebreo_arameo_y_griego.pdf
    • https://uploads.strikinglycdn.com/files/621f860b-ce00-46ec-8504-11ed988022df/vigoninajefigilavek.pdf
    • https://s3.amazonaws.com/vogubivajavofu/97276048685.pdf
    • https://uploads.strikinglycdn.com/files/249dde3e-207f-4003-baa2-e1a06f3ab3ab/50736718840.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_off0001c991.bin
57cc3feb5063431d832cbdb08631620ad3548c21c53de8a0387f94a76df1e736
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C991 5140 bytes
font_01_sfnt_off0001db10.bin
35c2c8c093d9ea746ba00f3dce9014a8ff95735256db7f529201a0c75f30e05e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1DB10 12048 bytes