Malicious PDF — malware analysis report

Static analysis result for SHA-256 802073baa394f11b…

MALICIOUS

PDF

78.7 KB Created: 2021-05-06 11:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd3afa254a10d26edf10e28e12a2118e SHA-1: 23e746a1db81533f9987c18d16d668faaa3635f5 SHA-256: 802073baa394f11b01da6690487e9c2eb93f1f29e176a7bc0056226531b1421d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit users by presenting a deceptive document that leads to a harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://zajinet.ru/strik?utm_term=the+best+american+short+stories+2019+pdf
    • https://cdn-cms.f-static.net/uploads/4446937/normal_606df99e7e259.pdf
    • https://cdn-cms.f-static.net/uploads/4454541/normal_6038d6bea4886.pdf
    • https://cdn.sqhk.co/wozejodes/3h3ihhe/lego_legacy_heroes_unboxed_beginners_guide.pdf
    • http://solent.bar/fipasopiwodojamp5l1.pdf
    • https://cdn.sqhk.co/dubikureta/iePxbzR/luvanoduroxesaj.pdf
    • http://medtechnika1.ru/14670555158suwmc.pdf
    • http://my-favshop.online/nulutedafopukivem5gxek.pdf
    • http://milansit.space/luke_bryan_songs_playlistdvbct.pdf
    • https://cdn-cms.f-static.net/uploads/4460048/normal_60606a344e439.pdf
    • http://tibudirowe.mygamesonline.org/bunufuvukajipek.pdf
    • http://soul-felt.com/the_highwayman_alfred_noyes_analysiskabts.pdf
    • http://casserlabs.xyz/9757414399197iar.pdf
    • https://cdn.sqhk.co/gidenateg/haPYAgf/51944712678.pdf
    • http://hookup153.site/spices_hut_cary_nc21a54.pdf
    • https://cdn.sqhk.co/zuxosutuku/c2gd9hf/grand_theft_auto_v_ifruit_apk.pdf
    • http://tebafurunaxinuj.getenjoyment.net/antenna_design_for_mobile_devices.pdf
    • http://bristol-yalta.run/the_secret_2000_movie_watch_online_freelnvct.pdf
    • https://cdn.sqhk.co/rifusofuwedi/jigjghi/desokegupetunodolep.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jeworurowam/setevet.pdf
    • https://s3.amazonaws.com/kibavutibeved/nixon_blaster_pro_turn_off_voice.pdf
    • http://vapewokadovusa.myartsonline.com/engineering_drawing_textbook_free_download_n2.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_off0000e711.bin
091541939ae969fd1e5dd32303aeaa634fe6420c53ff03e0b7b1728de131f29e
pdf-font-stream PDF embedded font (sfnt) at offset 0xE711 5724 bytes
font_01_sfnt_off0000fa4f.bin
29a12611c6eb24ce377687d957a3cc23688eb57208865caddb7faced530ce64b
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4F 10852 bytes
font_02_sfnt_off00011f48.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x11F48 4324 bytes