Malicious PDF — malware analysis report

Static analysis result for SHA-256 6095169551bd4df9…

MALICIOUS

PDF

80.3 KB Created: 2021-03-24 11:07:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2eb394d9fd7f24146d1c06dca3edf45 SHA-1: 5155da73b1d2f0de6b11816cbe0c7ef32c75afa3 SHA-256: 6095169551bd4df9d829a11d951dc486e63e0f55b9308cb5fd922c9f01282919
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a detection name indicating phishing and trojan behavior. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a commercial driver's manual.

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://golowaki.ru/wix?keyword=va+dmv+commercial+driver%2527s+manual
    • https://static.s123-cdn-static.com/uploads/4386618/normal_5ff6759fad23e.pdf
    • https://static.s123-cdn-static.com/uploads/4413575/normal_5fe06c88504f5.pdf
    • https://cdn-cms.f-static.net/uploads/4488804/normal_5fd7abe10b4e4.pdf
    • https://cdn-cms.f-static.net/uploads/4376098/normal_6011f3f07afa2.pdf
    • https://static.s123-cdn-static.com/uploads/4461201/normal_5ff3d5b523408.pdf
    • https://cdn-cms.f-static.net/uploads/4387819/normal_601701ba4ac19.pdf
    • http://dojisef.iblogger.org/2008_chrysler_sebring_convertible_repair_manual.pdf
    • http://bugelojuta.iblogger.org/bartholin_gland_cyst_patient_information.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rigitusavogu.epizy.com/wofetewelekaviwixelifaw.pdf
    • https://uploads.strikinglycdn.com/files/8ae7ad7c-32d0-4cf6-a332-657c203d4d6d/delta_36-725_fence_upgrade.pdf
    • https://uploads.strikinglycdn.com/files/5962868e-9824-4777-8d71-2d632c75d033/what_is_the_ute_tribe_known_for.pdf
    • https://uploads.strikinglycdn.com/files/c611c0ef-8c3d-4542-a02f-7d9e6c0abde8/92960305392.pdf
    • http://rozogev.rf.gd/zagedokidobugun.pdf
    • https://uploads.strikinglycdn.com/files/fa37ed06-d23c-47ef-9d73-555b230f5028/59661853179.pdf
    • https://uploads.strikinglycdn.com/files/5465f463-7c59-4b68-addd-909034d67a5a/read_fire_and_blood_before_game_of_thrones.pdf
    • https://uploads.strikinglycdn.com/files/4e2ebd9c-5256-41a8-a384-6daf7f444494/tecnicas_e_instrumentos_de_recoleccion_de_datos_segun_autores.pdf
    • http://bitibidebizofu.epizy.com/4th_grade_math_placement_test.pdf
    • https://uploads.strikinglycdn.com/files/04244b72-f97f-4038-ac15-15e92340a23c/how_to_disassemble_a_shark_steam_mop.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_off0000fd76.bin
26d5c199b716760dacba226de9fe0e3df30b9f9bc37860d34004b8903ba2a235
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD76 5144 bytes
font_01_sfnt_off00010eef.bin
3466b19246088e9ae0758dd8a207298056b16fb9465ab3fe2c551439d115f4cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x10EEF 10728 bytes