Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c621da452deed6…

MALICIOUS

PDF

82.3 KB Created: 2021-03-15 20:23:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d76dd9bf2422dc191bde61392db574c4 SHA-1: 7c4c3287c56aeb7325358c46e7b322335f4b5fbc SHA-256: 30c621da452deed6749278fec16fd0c4873ca73f9421daaa97b5b50cae957eb0
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, with a high risk score. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a phishing page or distribute further malware. The document body, though heavily obfuscated, suggests a lure related to a 'review'. No scripts were extracted, but the presence of external URLs and the overall detection profile strongly indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/wix?keyword=2020+ultra+limited+review
    • http://organize.shop/kamyab_jawan_program_form_nbpzn8p6.pdf
    • http://raifaisentapp.online/5_love_languages_amazon_uk4dlh9.pdf
    • http://copyrightsupport-ig.com/bose_ae2_pairing9wshx.pdf
    • https://cdn-cms.f-static.net/uploads/4473432/normal_603e82c6e0794.pdf
    • https://static.s123-cdn-static.com/uploads/4462976/normal_5ffe8bb72a045.pdf
    • http://bestunew.xyz/printable_jester_hat_template7ere0.pdf
    • https://static.s123-cdn-static.com/uploads/4414166/normal_5fcefa3d374a9.pdf
    • http://verifiedbadges-form.com/570903909353lrx9.pdf
    • http://trendmobile.ru/golden_psp_emulator_pro_apkogpnb.pdf
    • https://static.s123-cdn-static.com/uploads/4450039/normal_5ffc3316f2d89.pdf
    • https://cdn-cms.f-static.net/uploads/4488558/normal_600e6e38eb43c.pdf
    • http://yewes.space/how_to_troubleshoot_my_maytag_dishwasherczuoc.pdf
    • http://netlysy.online/romeo_and_juliet_2013_full_movie_cast2podu.pdf
    • http://axecheat8.xyz/dawokowaxefikulax9mbo.pdf
    • https://cdn-cms.f-static.net/uploads/4412593/normal_602bf6d693ea1.pdf
    • https://static.s123-cdn-static.com/uploads/4408875/normal_5fed16e554b5d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rizezobabub/38089267870.pdf
    • https://uploads.strikinglycdn.com/files/e4144f2f-5c63-4a1d-9e65-43b474b5d56b/fitbit_charge_hr_2_leather_band_review.pdf
    • https://uploads.strikinglycdn.com/files/d4b67bad-206e-4384-a6d6-602caadb4653/citizen_eco_drive_radio_controlled_wr200.pdf
    • https://uploads.strikinglycdn.com/files/6a247c81-36e2-42da-b41c-af70a25769d6/opening_to_the_neverending_story_3_dvd.pdf
    • https://uploads.strikinglycdn.com/files/d80bc49e-6b30-4c28-a1f0-6455f918d64e/thomas_mann_magic_mountain.pdf
    • https://s3.amazonaws.com/mokuwanibof/whats_3_words_8_letters.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_off00010570.bin
afb3c3507767349e123e0a4f35df061a43236a9b756d5c42135bd9f7a1166a33
pdf-font-stream PDF embedded font (sfnt) at offset 0x10570 5124 bytes
font_01_sfnt_off000116d0.bin
f2431bdc49a7316c4d35b0318d8eec1ae5b7ca8178e56e2baed6b60b88c6b764
pdf-font-stream PDF embedded font (sfnt) at offset 0x116D0 10776 bytes