Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa0637be4aac043…

MALICIOUS

PDF

76.3 KB Created: 2021-03-12 03:11:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ac64767774ff2dc0efed6db4af7529d2 SHA-1: 0817d62cebc2dea3373643c5bae7c8d23883e510 SHA-256: 2aa0637be4aac0433182da1bde2702b891fd958d7de7b5ac56a3a4c3e1efd82c
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'botokaw.ru', which is likely used to host malicious content or redirect users. The document body, though heavily obfuscated, suggests a lure related to a 'Bible quiz'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7941

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
  • 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://botokaw.ru/award?keyword=bible+quiz+on+luke+chapter+by+chapter+pdf+in+telugu PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413223/normal_60366063f2d95.pdfIn PDF document text
    • https://cdn.sqhk.co/xopuxuvop/g414iBD/new_amharic_orthodox_mezmur_video.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/har0uUl/55530672032.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385228/normal_6027cb15866be.pdfIn PDF document text
    • http://dudosawiroti.22web.org/what_happened_to_oreck_vacuum.pdfIn PDF document text
    • https://vavaterojitenoj.weebly.com/uploads/1/3/4/8/134898986/sitonugufugoga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495244/normal_60238338bdea5.pdfIn PDF document text
    • https://cdn.sqhk.co/watexoba/icgeaic/popular_android_app_notification_icons.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380691/normal_603bbea503c8e.pdfIn PDF document text
    • https://noxijinijomud.weebly.com/uploads/1/3/4/7/134746703/6324068.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474471/normal_5fe3067a0b2b8.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/cJHgjjc/crime_sim_grand_city.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/7d26fbc1-80ad-45c3-bcf7-35669397a7f9/is_the_killing_still_on_netflix_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f358ed1-dda4-4e49-bd02-fbb0e2328426/how_to_put_thread_on_bobbin_singer_sewing_machine.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/84953450579.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/brother_p-touch_pt-h100_mrkmaskin.pdfIn PDF document text
    • http://fezekugagow.rf.gd/american_music_awards_2018_performers_order.pdfIn PDF document text
    • https://s3.amazonaws.com/pigolo/problemas_porcentajes_3_eso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93fe20bb-6216-4978-ae55-0a71add391fc/coding_interview_questions_narasimha_karumanchi_zip.pdfIn PDF document text
    • http://nebejobibaveb.epizy.com/74080402707.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5fc63b1-4a5e-42e5-a4b9-8e4a3b612f76/mavufufojazuzod.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/devi_bhagavatam_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/new_bhojpuri_video_movie_song_2018.pdfIn PDF document text
    • http://ritanuwo.epizy.com/harry_belafonte_music_free.pdfIn PDF document text
    • http://xijivegopu.rf.gd/what_role_do_animals_play_in_an_ecosystem.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8B 5772 bytes
SHA-256: a0753d84f197ea7f0dc7e63f4931fca7eb87491af4ec9c8c6b200feacdaa5d10

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