Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6aabfc98d22ccad…

MALICIOUS

PDF

72.5 KB Created: 2021-03-21 10:21:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 918e5f90a924e9276b1e42e5fc8e376d SHA-1: e94ed876601b28d3287853379164d654539d2c77 SHA-256: d6aabfc98d22ccadabec09204c1f978af631414a57ef4dc51b27e0ba0f443d09
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URLs suggest a phishing or malware distribution attempt, likely disguised as a guide or download. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing lure, potentially leading to further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/123?utm_term=majora%2527+s+mask+prima+guide
    • http://limaxinsto.xyz/smith_and_wesson_915_grips_for_salez6kow.pdf
    • http://usesol.xyz/23446648969eoy7t.pdf
    • http://findfreegirl.com/free_download_conflict_desert_storm_2_pc_gameznxus.pdf
    • https://static.s123-cdn-static.com/uploads/4365555/normal_5fdea4a477a0d.pdf
    • http://fabermanufacture.ru/what_are_the_most_popular_german_girl_names1dvrv.pdf
    • http://beremoter.online/xmeye_setup_android0ylh0.pdf
    • https://cdn.sqhk.co/kekotenonaxu/hiigiaf/jagamagije.pdf
    • http://lnstagramcopyrighthelps.com/adverb_of_manner_worksheet_grade_6hmi1t.pdf
    • https://cdn.sqhk.co/lajagika/IjeGDvm/car_mechanic_simulator_classic_vs_car_mechanic_simulator.pdf
    • http://xsafak.com/trevor_noah_born_a_crime_audiobook_full4cwd4.pdf
    • http://7lessons.site/39386962747bbha9.pdf
    • https://vojonabof.weebly.com/uploads/1/3/1/3/131383251/putulo.pdf
    • https://static.s123-cdn-static.com/uploads/4414501/normal_5ff178cc5a155.pdf
    • https://cdn-cms.f-static.net/uploads/4426416/normal_60238c7a9328f.pdf
    • http://nncucuucuc.space/55173586506jz288.pdf
    • https://cdn-cms.f-static.net/uploads/4405639/normal_6043ddf0cc760.pdf
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/voxus.pdf
    • https://cdn.sqhk.co/widobixi/sGthghb/texufapemipolekejopu.pdf
    • http://top-agent.ru/distance_displacement_speed_and_velocity_worksheetywird.pdf
    • https://static.s123-cdn-static.com/uploads/4388841/normal_5ff56a03172fa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zozofufulolig/hp_laserjet_3055_printer_review.pdf
    • https://s3.amazonaws.com/zuniverijesud/how_much_was_michael_jackson_worth.pdf
    • https://s3.amazonaws.com/bivanud/daloginuvubenoded.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_off0000dc79.bin
74e796d20dc089b9cbbf02375c4e15a711a5b92cddf91543cfdbaa43d7ac8974
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC79 5428 bytes
font_01_sfnt_off0000eef4.bin
d9c35f19ebc8620db946ec432e538ee6ce160e488d5e2f01a664486206d8592f
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF4 11100 bytes