Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e791e103b6dee9…

MALICIOUS

PDF

75.6 KB Created: 2021-03-31 13:49:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: db0a52a3f8e41383d02c51551c0147e5 SHA-1: f1c7512ad8e5491751eda7e0f209df61c4280d0d SHA-256: 45e791e103b6dee945feea03c24121f8c07322daed60ae7a047ff00ac8049e90
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'lozipotod.ru', which is likely a distribution point for a secondary payload. The document body, though heavily obfuscated, suggests a lure related to 'Ancient greek history of architecture pdf', aiming to trick users into opening the malicious file.

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://lozipotod.ru/123?utm_term=ancient+greek+history+of+architecture+pdf
    • http://karma-911.com/velugifino1cpd1.pdf
    • http://lnstagramverifiedbadge-media.com/5211678556110jv5.pdf
    • https://cdn.sqhk.co/gasowifozil/heruieh/vobudopajuzemelunefuza.pdf
    • https://cdn.sqhk.co/gavivevok/ij4gfjd/78649773686.pdf
    • http://magic-world.site/nugijinelavukopebuxodawanqwgu2.pdf
    • http://allerop.xyz/batman_1940_comics_for_saleu1ewi.pdf
    • https://cdn.sqhk.co/durotula/ahjjjg2/weekend_at_bernies_2_meme.pdf
    • https://cdn.sqhk.co/ketegobuto/YhhjBgj/reaver_titan_forgeworld.pdf
    • https://cdn.sqhk.co/lexebogefaj/iZwFhcf/37458440323.pdf
    • https://cdn.sqhk.co/fedefuxu/hbyBnLG/84526511619.pdf
    • http://damita.fun/why_is_my_whirlpool_refrigerator_water_not_coldd154h.pdf
    • https://cdn.sqhk.co/puzukebejas/ijgjTgc/fuxupegimefamotefexa.pdf
    • https://cdn.sqhk.co/pojimisuso/jhi7Day/led_controller_with_rf_remote_control_not_working.pdf
    • https://cdn.sqhk.co/jevamivuvugi/igidjgC/formula_area_of_parallelogram.pdf
    • https://cdn.sqhk.co/lajawawinu/rhfHDyW/radiology_imaging_associates_waldorf.pdf
    • https://cdn.sqhk.co/penutizufib/gq7jjxv/58793207611.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a8edbdb8-9cb4-4c87-922d-9a13165f8b1f/mcgraw_hill_wonders_grade_4_vocabulary.pdf
    • http://fafozega.rf.gd/transplant_guidelines_cmv.pdf
    • http://fofeparulofiz.rf.gd/pofejubuwipanijenomivezok.pdf
    • http://rudavuvubizuz.rf.gd/sapokopotakudutejovixowe.pdf
    • https://uploads.strikinglycdn.com/files/61510291-f47b-4dc4-9183-365cab75d24a/30286704860.pdf
    • https://uploads.strikinglycdn.com/files/51f04e6f-adce-4fbb-bcd0-a33cb6d2dec3/where_can_i_buy_premier_protein_caramel.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_off0000e89c.bin
ac6e296032db7289e882dca75a8e74f1acb6885bd66094ef168a658e292341fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xE89C 5540 bytes
font_01_sfnt_off0000fb88.bin
13ce1e776d040067d50a5b8cb41976ba8ce66d1a644d9f4840e52e5c3d8fcfbf
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB88 11008 bytes