Malicious PDF — malware analysis report

Static analysis result for SHA-256 02bb51100e4459a3…

MALICIOUS

PDF

98.2 KB Created: 2021-03-14 05:53:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a143c0e96998c1a65fc10df53c902417 SHA-1: e5ed86a9246454632009a79ad93b330f15acb71b SHA-256: 02bb51100e4459a3f73f7794375f8b4ae06c0c66718ce6e0eb01af9075e67dc5
136 Risk Score

Malware Insights

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

The sample is a PDF document flagged by multiple heuristics as malicious, including an ML classifier and ClamAV. It exhibits characteristics of an advance-fee scam, using language related to lotteries, prizes, and parcel delivery. The embedded URL, https://mezovuduw.ru/wix?keyword=blank+vhs+tapes+media+mail, likely serves as a lure to initiate the scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://mezovuduw.ru/wix?keyword=blank+vhs+tapes+media+mail
    • http://pexulisinipev.sportsontheweb.net/then_use_a_geometric_formula_to_evaluate_the_integral_a_0_r_0.pdf
    • http://getbuiss.online/zonubexixabuhf.pdf
    • https://cdn-cms.f-static.net/uploads/4384655/normal_60293c8139430.pdf
    • https://cdn.sqhk.co/bumogebiz/jXFid2W/ketifubejuxuxalofatu.pdf
    • https://cdn-cms.f-static.net/uploads/4476757/normal_60214eccaee05.pdf
    • http://idealslimitalia-official.site/yamaha_psr_e253_manual_espaolnk0zo.pdf
    • http://getporte.xyz/cisco_switch_vlan_configuration_commands6uxrv.pdf
    • http://xumupizaxuto.scienceontheweb.net/boss_ls_2.pdf
    • https://cdn.sqhk.co/jobiwokojo/L3Cchje/kisefez.pdf
    • http://lestyprin.online/78808296660j0ytg.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a0425681-1aac-40a0-9567-d1276eb34140/share_on_facebook_group.pdf
    • https://uploads.strikinglycdn.com/files/aa0496d9-68c1-4ec1-b957-5ed1e4e2ed4e/where_is_the_power_steering_pump_located_on_a_2007_pontiac_grand_prix.pdf
    • https://s3.amazonaws.com/mojivikapeti/dudajiteziwejoje.pdf
    • https://uploads.strikinglycdn.com/files/d89215c4-37c3-47fc-994a-1ae530fc4275/48701447318.pdf
    • https://s3.amazonaws.com/fapaga/digestion_quimica_y_mecanica.pdf
    • https://uploads.strikinglycdn.com/files/4e89af33-184a-48fa-9037-77e725a10388/the_dynamic_laws_of_prosperity_free_download.pdf
    • https://s3.amazonaws.com/mexijegedakol/95959804584.pdf
    • https://uploads.strikinglycdn.com/files/7e27754f-1be5-4b28-a596-053141ef6fc6/safety_first_car_seat_expiration.pdf
    • https://s3.amazonaws.com/bupaxomu/lagu_ost_aladdin_2019.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_off000141c2.bin
61a8a21088a8ef68d3d391dacd48bf91d5f82ef22802848775148b06f721f305
pdf-font-stream PDF embedded font (sfnt) at offset 0x141C2 5276 bytes
font_01_sfnt_off00015396.bin
a8feb720dadd3b189c19e0657246a6ed86ad61241363f6c0ac075ffc4cc27ed8
pdf-font-stream PDF embedded font (sfnt) at offset 0x15396 11732 bytes