Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bc57bd0f1d72ebb…

MALICIOUS

PDF

83.7 KB Created: 2021-04-01 10:04:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82ac7f0b19eeeb26a14c8cd48930f99b SHA-1: 0ddfa04a5b7bba48e3271d218889c4bfb83c8292 SHA-256: 7bc57bd0f1d72ebb0ede03cb4c6cb89e3a19bb7d18070a7104229bf57d5a2045
96 Risk Score

Malware Insights

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

This PDF document contains an embedded URI pointing to a suspicious domain, identified by both heuristics and ClamAV as malicious. The document body, though heavily obfuscated, appears to contain text related to air fryers, likely as a lure. The presence of an external URI suggests an attempt to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://vilenefex.ru/strik?utm_term=what+vegetables+can+you+put+in+an+air+fryer
    • http://gevenukodujojov.getenjoyment.net/integration_of_trigonometric_functions.pdf
    • http://sazinoz.mypressonline.com/1981006437.pdf
    • https://cdn.sqhk.co/kifateten/njc0Hjj/organisms_and_environments_worksheets.pdf
    • https://cdn.sqhk.co/pigexebobe/jgidhbm/15106316840.pdf
    • http://rupaduwovuw.getenjoyment.net/62664765262.pdf
    • https://cdn.sqhk.co/jebanufebejo/fggKCig/wingstop_menu_flavors_and_prices.pdf
    • https://cdn.sqhk.co/siloneza/gijhgM0/98969491158.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/82c47e4f-8016-487f-96f7-e46ee0105ed8/all_navy_nec_codes_list.pdf
    • http://nawonarubital.epizy.com/ravujaru.pdf
    • https://uploads.strikinglycdn.com/files/2047dce2-b022-4af5-9651-6b97c87213f2/how_to_start_homelite_2600_psi_pressure_washer.pdf
    • https://uploads.strikinglycdn.com/files/2ded8103-2cbc-48db-b657-31e73456d762/sabez.pdf
    • https://uploads.strikinglycdn.com/files/a75f16c1-1d4e-468d-8ba4-9b3bf5003955/zunevomoze.pdf
    • https://s3.amazonaws.com/suxuzubojut/how_to_detox_mercury_naturally.pdf
    • https://s3.amazonaws.com/dapekufoxiraku/audio_technica_lp120_setup_to_speakers.pdf
    • https://uploads.strikinglycdn.com/files/630f70cc-4525-4151-b628-666d2c9433d7/tozodolimixezizimal.pdf
    • http://vurorevebosexu.rf.gd/65479897465.pdf
    • http://pawepeg.atwebpages.com/ableton_live_lite_9_user_manual.pdf
    • https://s3.amazonaws.com/vixuwogetiv/43555714754.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_off0000f8d0.bin
905283f042a29f279b66dbb0f35905c4f7d3f737477b5b1daec34f0c6626e6e5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D0 5472 bytes
font_01_sfnt_off00010b78.bin
2fda3226ed7e976b008d5f32166270550db590972c5bb332e913d31fe8251e4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B78 11608 bytes
font_02_sfnt_off000132e6.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x132E6 4324 bytes