Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aee50829bbf817d…

MALICIOUS

PDF

84.8 KB Created: 2021-04-01 14:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e42b202c62410b2251a0be48b70b64a5 SHA-1: 2a2f368924cb93426ca11fd6fb3f14a92bacb997 SHA-256: 7aee50829bbf817de50b2e268cac8641d39d98176475a45159645fb4d7b0fa28
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 phishing-related page disguised as a guide. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://crophysi.ru/aws?utm_term=how+to+add+spectrum+app+on+apple+tv
    • http://zanotafiwakat.iblogger.org/toro_power_clear_621e_manual.pdf
    • http://topcreditmonitoring.info/twilight_full_movie_download_in_hindi_moviesflixgut44.pdf
    • http://libralab.digital/google_maps_has_my_home_address_wrongbiluq.pdf
    • http://salea.site/lazarillo_de_tormes_resumen_quizletfoaqe.pdf
    • http://ninufejuvosixir.22web.org/davekosogotipelodogakoxi.pdf
    • http://optalpha.com/pexoruje87qwr.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tugafebip/hegelian_dialectic_prodigy_apple_music.pdf
    • https://s3.amazonaws.com/wujafivabipo/migejatakaxita.pdf
    • http://bexalawisilinot.epizy.com/niveles_de_lectura.pdf
    • https://uploads.strikinglycdn.com/files/01eeb250-83b3-4eb6-a6be-b520826dc29b/pepolizonawu.pdf
    • https://s3.amazonaws.com/limepusotanal/nidedige.pdf
    • http://jarebavax.epizy.com/sitedozoputet.pdf
    • https://uploads.strikinglycdn.com/files/5451bb75-671c-470f-b8c9-79271068d9d2/88203400485.pdf
    • https://uploads.strikinglycdn.com/files/94656018-8447-439a-9dd5-6396fa70b645/54969610922.pdf
    • https://uploads.strikinglycdn.com/files/9408c504-d843-4ec5-8a4a-509638b74093/is_world_war_z_split_screen_on_ps4.pdf
    • https://uploads.strikinglycdn.com/files/6032dab4-f5de-4a9a-bc13-76afe5c07eb6/no_fear_shakespeare_midsummer_nights_dream_act_5.pdf
    • https://s3.amazonaws.com/wutisigila/brotherhood_of_steel_knight_uniform_fallout_76.pdf
    • http://dajejat.rf.gd/kenugeselenidulozenafule.pdf
    • http://sobibuxasegisun.rf.gd/cognitive_bias_definition.pdf
    • https://s3.amazonaws.com/vifusupegiza/atom_vpn_apk_url.pdf
    • https://s3.amazonaws.com/gebukil/what_age_can_you_get_a_learners_permit_in_arkansas.pdf
    • https://s3.amazonaws.com/xumakomowi/hekate_atmosphere_guide.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_off00010da1.bin
b7051b9731c189bb801cb3bb5aac4ea8421ea7673a1b3754cfb1950a147deb88
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA1 5332 bytes
font_01_sfnt_off00011fc4.bin
3fdfd2c5eaa5279257c5c57a2f972a46c2a5cabe0bc3abb12acb6b3b7eac3b55
pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC4 11032 bytes