Malicious PDF — malware analysis report

Static analysis result for SHA-256 30804e45d1c3dd97…

MALICIOUS

PDF

75.5 KB Created: 2021-04-03 11:23:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 560f0a6a0fb16df5d94d751f650500cc SHA-1: becdd07f0fb8775bcfef4797fc794ed2fe86262a SHA-256: 30804e45d1c3dd9772424934e67c07c2025c38c2e4e649f966e74afcbf43c1a0
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'dafemum.ru'. Additionally, ClamAV detected the file as 'Pdf.Phishing.Trojan'. The embedded URL 'http://gojawufeki.getenjoyment.net/816425240.pdf' is also suspicious. These indicators suggest the document is designed to lure users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://dafemum.ru/aws?utm_term=how+to+apply+xmas+window+stickers In PDF document text
    • http://gojawufeki.getenjoyment.net/816425240.pdfIn PDF document text
    • http://fufejezonodim.mywebcommunity.org/liderazgo_democratico_ventajas_y_desventajas.pdfIn PDF document text
    • http://wazepewazivulil.mywebcommunity.org/d_and_d_delivery.pdfIn PDF document text
    • http://jukejed.mypressonline.com/libro_alimenta_tu_cerebro_gratis.pdfIn PDF document text
    • http://wurilozi.scienceontheweb.net/materi_akuntansi_dasar_kelas_10_semester_1_kurikulum_2020.pdfIn PDF document text
    • http://bewizasosu.sportsontheweb.net/90250352063.pdfIn PDF document text
    • http://nijaxubazaziw.mypressonline.com/dewalt_cordless_drill_not_charging.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/75951582350.pdfIn PDF document text
    • http://kinemulawaw.sportsontheweb.net/alphabetizing_worksheets_grade_1.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/zufojadibi/battle_of_unknown_squad_battleground_survival_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/64772021531.pdfIn PDF document text
    • http://rijonitapadon.myartsonline.com/zotumudowonupodipisifo.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/how_much_weight_can_a_pallet_jack_hold.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96daf2fa-eba9-436f-9834-10ac9a9252d4/libro_la_meta_eliyahu_goldratt_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/best_thief_race_guild_wars_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fab9236-acfa-4def-985a-df3e21defd77/what_are_the_basic_features_of_interpersonal_communication.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/attack_on_titan_season_1_episode_3_summary.pdfIn PDF document text
    • http://kafotafuvodalix.onlinewebshop.net/cannery_row_novel.pdfIn PDF document text
    • http://wuragumok.atwebpages.com/wubala.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/crowdflower_data_science_report_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/perobumubozifoxigub.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/dd_5.0_players_handbook_download.pdfIn PDF document text
    • http://palelezugob.onlinewebshop.net/44041207045.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/dejasuwowipaxitixodofu.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_off0000ea4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4A 5508 bytes
SHA-256: 2d4534b9d5c862246ac7779153f75e2f5c52f91cfb5db394a18b264bf16d432b
font_01_sfnt_off0000fd09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD09 10492 bytes
SHA-256: e843ed3ec2e14aacf71967a4c0cddb0c231ae93cc43f00db2e222272e7fb380f

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