Malicious PDF — malware analysis report

Static analysis result for SHA-256 af25769fe09ed8f5…

MALICIOUS

PDF

87.2 KB Created: 2021-03-27 11:53:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36aaaacfc46ef158efa9dcfbe9e9b571 SHA-1: 7faa43d91a88948f18f64522fcac9f1d765834a1 SHA-256: af25769fe09ed8f5d9474a42985e3d0fa4de911ceb99007123c40e1c9c1329d5
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the document's likely purpose suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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=call+for+proposals+2020+kenya
    • http://joblanc.xyz/10501228158fudqf.pdf
    • http://keepsufi.space/61025145483muv05.pdf
    • http://xijulefabogi.getenjoyment.net/zobatofilobexubo.pdf
    • http://gejokakop.mygamesonline.org/dell_latitude_e5400.pdf
    • http://rovanenafet.getenjoyment.net/autoestima_definicion_segun_autores.pdf
    • http://zezasarasojid.mywebcommunity.org/pearson_biology_textbook_11th_edition.pdf
    • http://merishwheelrecords.com/white_rodgers_thermostat_1f80-261_manuals08cz.pdf
    • http://peteferix.mypressonline.com/jamaica_images_clip_art_flowers.pdf
    • http://vixinusagodax.scienceontheweb.net/12435988032.pdf
    • http://jajokojunewi.mypressonline.com/77300459139.pdf
    • http://magicwoolshop.com/how_to_do_troubleshooting_in_computeri19ou.pdf
    • http://jexufiw.iblogger.org/armature_reaction_of_dc_machine.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://solugivewatewa.myartsonline.com/42012495562.pdf
    • https://uploads.strikinglycdn.com/files/6668f770-b297-4e60-9178-229c1b25e7f6/tork_timer_1101b-p.pdf
    • http://bopewexe.onlinewebshop.net/biuret_test_for_protein_lab_report_discussion.pdf
    • https://uploads.strikinglycdn.com/files/59179166-0588-480f-af2e-55d6ce8a60cc/how_much_is_premiere_pro_cc.pdf
    • http://ropupifalapoges.atwebpages.com/wokobomapaba.pdf
    • https://uploads.strikinglycdn.com/files/9e6d8ecf-2871-45f7-a320-ccf7bac400ed/2971944673.pdf
    • http://luvabokinoleg.onlinewebshop.net/monster_manual_3_3.5.pdf
    • http://dapizodipe.myartsonline.com/arcmap_10._3_user_manual.pdf
    • https://uploads.strikinglycdn.com/files/716af3e5-5ada-4351-8515-db9c8a5fbcff/brother_intellifax_4750e_not_receiving_faxes.pdf
    • http://jemejuzot.epizy.com/asvab_practice_questions_electronics_information.pdf
    • http://zumoriko.epizy.com/poc_bible_malayalam_free_download.pdf
    • http://vedaremix.epizy.com/nintendo_bomberman_game_free_pc.pdf
    • http://vewawisu.onlinewebshop.net/2031520626.pdf
    • https://uploads.strikinglycdn.com/files/f28209d2-c192-439e-99e9-d8fd6ca2c284/how_to_change_oil_onan_4000.pdf
    • http://sasuwirakib.rf.gd/69388562020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010dfa.bin
b1b733d6dcd41c651d24b99c9f5200ade4dd71601f7ee8dbd3095764b9703bfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DFA 1872 bytes
font_01_sfnt_off000116ef.bin
0ed2cd021246f6f9e76091d41e9c1738e32558c4db0f440c9dfbcc57ddc55927		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116EF 5240 bytes
font_02_sfnt_off000128dc.bin
61c4ddf528b1993d4d1a0165c05d632e695ebc7300e9071f23d45f0fbc9728b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128DC 11268 bytes

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