Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0189d0aadcfdd90…

MALICIOUS

PDF

79.5 KB Created: 2021-04-01 01:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 663891b6d91b5a2fe7ee669f8ae84435 SHA-1: 12443478f38835739992467f9f2f95070b66712d SHA-256: d0189d0aadcfdd90abd5e9e62ae9b9c55865f2ebd8b7a4ad892a0233c1409138
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, likely to deliver a payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to car maintenance, suggesting a lure to entice users to click the malicious link.

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://pelibifir.ru/aws?utm_term=how+to+check+transmission+fluid+2012+vw+jetta
    • https://totakolexab.weebly.com/uploads/1/3/5/3/135391630/molatomitanavuvuk.pdf
    • https://static.s123-cdn-static.com/uploads/4401976/normal_5fce932368deb.pdf
    • https://cdn.sqhk.co/nigalasiline/e2ijxU6/two_points_determine_a_line_equation.pdf
    • https://cdn.sqhk.co/guwezasov/h0hfrhg/ringtone_loud_sound_mp3.pdf
    • https://cdn.sqhk.co/tinawegu/iejypPc/futojul.pdf
    • https://cdn.sqhk.co/virurewev/hYjajjD/pathfinder_adamantine_dagger.pdf
    • https://xowivana.weebly.com/uploads/1/3/0/8/130813667/kodaxan_wenofapametovi_kegetoduguk.pdf
    • https://cdn-cms.f-static.net/uploads/4491926/normal_605449606f589.pdf
    • http://dexaputanit.mygamesonline.org/how_big_is_1_10_scale_rc_car_in_cm.pdf
    • https://cdn-cms.f-static.net/uploads/4490524/normal_602a04d813019.pdf
    • https://dutilugamon.weebly.com/uploads/1/3/5/3/135301630/8f990243692.pdf
    • http://jezojarugeboz.22web.org/wewiseluvokapewapiv.pdf
    • https://cdn-cms.f-static.net/uploads/4449600/normal_605a4137ef28a.pdf
    • http://xelowonol.scienceontheweb.net/digital_electronics_multiple_choice_questions_with_answers_download.pdf
    • http://babitilakibo.mywebcommunity.org/15961289285.pdf
    • http://watodakazo.22web.org/xodogibedisinoba.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tasibufoz.rf.gd/ielts_academic_reading_samples_with_answers.pdf
    • http://pinogizege.rf.gd/34397272687.pdf
    • http://pifotojejanuwal.rf.gd/101_machine_learning_algorithms_for_data_science_with_cheat_sheets.pdf
    • http://milosevogoza.rf.gd/98032270737.pdf
    • http://wigifanike.epizy.com/84352621678.pdf
    • http://beninoduvewer.epizy.com/indices_and_logarithms_worksheet.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_off0000f828.bin
1e084ce23389344558e2c631bc010cb3709302aa23e28416d44df072772c6fcd
pdf-font-stream PDF embedded font (sfnt) at offset 0xF828 5840 bytes
font_01_sfnt_off00010bfd.bin
6754d035f6279176a043cbe01f61bef5eceee8f661a9b51a1353b83d2b8e0cdf
pdf-font-stream PDF embedded font (sfnt) at offset 0x10BFD 10792 bytes