Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8f6958f8c723604…

MALICIOUS

PDF

95.1 KB Created: 2021-02-16 03:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53a40c292301a7ec7e18a70abfcd1758 SHA-1: 1ea0c1e30c592c76a1e146d9f2595d5963d9ac76 SHA-256: f8f6958f8c7236046010e5233e6f7de8b419e4235dee0548575f6b2d10f67f7f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a website that appears to be a lure for trading-related content, likely a phishing or scam page. The presence of multiple suspicious URLs further supports the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=vivir+del+trading+pdf+alexander+elder
    • https://fezagexagowib.weebly.com/uploads/1/3/5/3/135313062/mefol-nifetabatogi-kuzirujux.pdf
    • http://shop-you.xyz/sleep_music_meditation_guidedqq6nh.pdf
    • https://metuliwilive.weebly.com/uploads/1/3/4/3/134386481/bb9c96c93759204.pdf
    • http://5coupon.info/baby_trend_infant_car_seat_expiration_datefh0zs.pdf
    • http://counterman.ru/xijajonukukelijasumugljcv7.pdf
    • http://fitness-ital.fun/97089801095iceyf.pdf
    • http://myirn.icu/xirelerenarf6oqn.pdf
    • http://thefortykuti.com/9735377315007bkw.pdf
    • https://cdn-cms.f-static.net/uploads/4475730/normal_5fd1011658adf.pdf
    • http://siankaanmexico.com/peluditoxipembv79e.pdf
    • http://gratoramaa.space/212248681338pbsd.pdf
    • https://cdn-cms.f-static.net/uploads/4451365/normal_5fd86068d19eb.pdf
    • https://nobakunifiximup.weebly.com/uploads/1/3/5/3/135310199/xizenet-lagomex-wosanavivewuw.pdf
    • http://vijoxufomodazug.22web.org/kepivimidolede.pdf
    • https://tulopesonu.weebly.com/uploads/1/3/5/3/135318186/zilukime_bugewimewez.pdf
    • http://salonvarna.com/duvesuzasie2rtp.pdf
    • http://wonder-ita.fun/32763364283m151p.pdf
    • http://vulefuxudonad.22web.org/bannockburn_primary_school_ofsted_report.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://guxozuzemonixe.epizy.com/medical_certificate_form_for_leave.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000128e5.bin
143f62c5641b61b70b34bbddba6047dabf5318426bdeed679f7060819cde712d
pdf-font-stream PDF embedded font (sfnt) at offset 0x128E5 4804 bytes
font_01_sfnt_off00013948.bin
e10559dd16b97e25b67b7c7e4a00898b46cab2d23bbfea112b9a96fca89e5757
pdf-font-stream PDF embedded font (sfnt) at offset 0x13948 11488 bytes
font_02_sfnt_off00015ee0.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x15EE0 4324 bytes