Malicious PDF — malware analysis report

Static analysis result for SHA-256 d169c44b668dced0…

MALICIOUS

PDF

95.9 KB Created: 2021-03-20 23:16:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93badb2dfda40e98d6563445c7c63d28 SHA-1: ad7c80816780f51bd48e18ad787fb51712762b59 SHA-256: d169c44b668dced0e436445097d81651106498f04c3fb3dbc942509c2038cf61
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier assigned a high probability of maliciousness. The document body, though heavily obfuscated, contains text related to 'Preet Bharara doing justice', suggesting a lure. The embedded URI points to a URL that likely hosts a phishing or malware payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://nipisod.ru/award?keyword=preet+bharara+doing+justice+pdf
    • http://jagodadexujuza.iblogger.org/bunisakimo.pdf
    • https://zetodimamewiwek.weebly.com/uploads/1/3/2/3/132302859/vefikot.pdf
    • https://likizosuzi.weebly.com/uploads/1/3/4/8/134886942/fabuj.pdf
    • http://ninozefumuwu.iblogger.org/57410686759.pdf
    • https://cdn-cms.f-static.net/uploads/4421042/normal_604325e2a0d0f.pdf
    • https://cdn.sqhk.co/tobajizil/qkgiIgc/fourth_grade_times_table_worksheets.pdf
    • https://cdn-cms.f-static.net/uploads/4456116/normal_602eae896aab2.pdf
    • https://cdn.sqhk.co/kavejufa/ihfjaid/rarobepo.pdf
    • https://cdn-cms.f-static.net/uploads/4386621/normal_6023bad037dce.pdf
    • https://cdn-cms.f-static.net/uploads/4379220/normal_600b05a5c1a65.pdf
    • https://cdn-cms.f-static.net/uploads/4528959/normal_6032e51cdb95d.pdf
    • https://pefojefevofat.weebly.com/uploads/1/3/4/6/134659321/pekurefezovu.pdf
    • https://cdn.sqhk.co/mezawuso/hVgj32n/61812388557.pdf
    • https://cdn.sqhk.co/tikomekove/dgiZwlg/loxozutakukus.pdf
    • https://cdn.sqhk.co/difigobon/2v8Gihf/woodworking_wedding_gift_ideas.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/makumapikeze/beholder_2_appeals_guide.pdf
    • https://s3.amazonaws.com/votubukaxogilix/2000_chevy_blazer_service_manual.pdf
    • http://dofumexuvit.epizy.com/solutions_to_atiyah_and_mcdonalds_introduction_to_commutative_algebra.pdf
    • https://uploads.strikinglycdn.com/files/99c66c41-3fe6-41c9-a1b9-0e8febc27bd4/xopapeganunezoru.pdf
    • https://uploads.strikinglycdn.com/files/4d7779ab-6fa2-4111-b099-ac6b798f23ac/958870444.pdf
    • https://uploads.strikinglycdn.com/files/942dc307-56ee-460b-8eab-3a0bf2c5778a/75897713982.pdf
    • http://zuxakenupe.epizy.com/80381419899.pdf
    • http://sosozodazu.epizy.com/aldi_reisen_prospekt.pdf
    • https://uploads.strikinglycdn.com/files/a831696b-a680-4fec-bf7c-816d006ebeb0/43703319171.pdf
    • https://uploads.strikinglycdn.com/files/f06e5435-b439-40d3-ac5d-293c26db8136/pretty_little_liars_free_season_3.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_off0001372f.bin
0bd5ae00f2e4bb8069ef6da3423be4575875499c0d3602c39cd49c0e29d38fa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1372F 5600 bytes
font_01_sfnt_off00014a3b.bin
87aca0589103b94cecadf519da666115dab6cb387f37f767a62790ed30a191a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14A3B 11348 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.