Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2bd0a89605a8406…

MALICIOUS

PDF

88.7 KB Created: 2021-03-20 00:16:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b6414be157a5f10fc3a9745cbd06fd9a SHA-1: 9081970088a7e04c1f25cf9248949c6c384c0053 SHA-256: c2bd0a89605a8406780bcf6662bbc61f7f1a02e094c81dc15469306b22945a90
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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=pokemon+crystal+versus+books+pdf PDF link annotation
    • http://lojapidabud.mypressonline.com/75658121891.pdfIn PDF document text
    • http://tubesebove.medianewsonline.com/xonapukufuxujatizojoj.pdfIn PDF document text
    • http://nikaold.site/joxiwomufurovamevifegaklvya.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/vokitenenekosajonascxco.pdfIn PDF document text
    • https://cdn.sqhk.co/jejefudebuxi/iihgfjh/zombie_highway_roadkill_mod_apk.pdfIn PDF document text
    • http://artrosil.xyz/kofigitodimoxetoip3l.pdfIn PDF document text
    • http://unosital.space/6139836547895vq.pdfIn PDF document text
    • http://help-ruleviolation.com/newry_reporter_job_vacanciesty38b.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/hD4gfbs/bus_driver_simulator_2019_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/manigonodapu/Jifggif/sniper_3d_gun_shooter_game_mod_apk_download.pdfIn PDF document text
    • http://onatural.space/biogeochemical_cycles_answer_key8t8ik.pdfIn PDF document text
    • http://wei-nmvc.com/location_khalid_sheet_music_pianooyr4h.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/ggricQu/repost_app_for_android.pdfIn PDF document text
    • http://palopej.sportsontheweb.net/34914112155.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/ejemplos_de_molalidad_ejercicios_resueltos.pdfIn PDF document text
    • http://istlan.fun/environmental_impact_assessment_act_2004_nigeriaoxlrj.pdfIn PDF document text
    • http://copyright-rules-help.com/can_you_sue_for_defamation_of_character_in_texasr1zan.pdfIn PDF document text
    • http://jetavof.sportsontheweb.net/fofesulapoxironijid.pdfIn PDF document text
    • http://bighome.space/mitosis_in_plant_cells_lab_28_answersjy1gz.pdfIn PDF document text
    • http://reduslimitalia.site/fitbit_versa_lite_watch_facesmys4s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/298537a5-2675-4f2b-bb84-af2a0dce62a6/easy_piano_music_christmas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7df93170-36d7-4e47-a98f-3367fc6b56a7/95486670953.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/982de7ac-47f2-4cb7-8ad5-e054449a2c56/suxesewonopuwifetakufogo.pdfIn 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_off0001247b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1247B 5500 bytes
SHA-256: dc19b9b42b59b320576ca2bba2a2d0c74de44cc908ba9951be61ec83fb3e6f60
font_01_sfnt_off0001371c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1371C 11960 bytes
SHA-256: 46cb1118be98a5c6d714fd25f7f1d85c9d8e1b91b1610f50618c09b128af22db

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