Malicious PDF — malware analysis report

Static analysis result for SHA-256 86973128a47444f0…

MALICIOUS

PDF

77.5 KB Created: 2021-03-12 19:04:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55f4b50aafad585859940cbe02021874 SHA-1: 7957303c2ad70f7f3b4f333c8ae59e4d31d2f716 SHA-256: 86973128a47444f0032a1518ccc0a0c554ae27060fbdfab95078a65e15367644
136 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely part of an advance-fee scam lure. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to lead the user to a malicious website, potentially for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://zajinet.ru/wix?keyword=in+search+of+sisterhood+pdf
    • http://parazepurafeza.medianewsonline.com/attack_on_titan_part_1_cast_levi.pdf
    • https://cdn.sqhk.co/sovokeduseb/icidia4/jetpack_joyride_for_windows_8.pdf
    • http://kekijojovif.sportsontheweb.net/bereden_vg_fr_herran.pdf
    • https://cdn.sqhk.co/puwekawe/hyTBJR4/18412237966.pdf
    • https://cdn.sqhk.co/megilujij/gcqieac/pujajenu.pdf
    • http://beviluxenumiliv.mywebcommunity.org/fitafaxi.pdf
    • https://cdn-cms.f-static.net/uploads/4369657/normal_60466a5d151d4.pdf
    • http://fagogit.sportsontheweb.net/olaudah_equiano_book.pdf
    • http://zikewexer.scienceontheweb.net/viper_car_alarm_key_fob_not_working.pdf
    • https://static.s123-cdn-static.com/uploads/4406191/normal_5fecb8ddca239.pdf
    • https://cdn-cms.f-static.net/uploads/4422382/normal_6041f1aa8a920.pdf
    • http://mumolazesinidix.getenjoyment.net/can_you_improve_non_verbal_reasoning.pdf
    • https://cdn.sqhk.co/pamoguto/g52TdYn/eleanor_3_game_guide.pdf
    • http://jakesubinosol.scienceontheweb.net/62169005000.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://9e28b13d-ef5c-4d18-821e-e071a8932918.filesusr.com/ugd/0b0738_3b6aec1545194f4488ceea689e29d4a6.pdf?index=true
    • https://7605c768-a471-4169-85a9-0dab509fd250.filesusr.com/ugd/20ab23_bd49b0cdc8a74fa5a549253c1771ca3e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/30a90590-0590-4cd7-8d42-29b511b26db0/is_wing_chun_banned_from_mma.pdf
    • https://uploads.strikinglycdn.com/files/897081c9-d2d9-47be-ae2b-efbf7e5cc78f/pocket_icu_second_edition.pdf
    • https://32e47638-7206-44c1-ad53-5c6f9176402e.filesusr.com/ugd/e00742_c004a98e93b246198d7f34aba71c5aa6.pdf?index=true
    • https://5e54d98c-4257-4cc7-9010-48f3df296eb2.filesusr.com/ugd/05240c_770150bcfd314db9a9e0610d30b3a829.pdf?index=true
    • https://uploads.strikinglycdn.com/files/beb29561-33a1-4964-8d5f-c6532d6b486e/77137026170.pdf
    • https://uploads.strikinglycdn.com/files/79bc9629-efda-44fa-a86f-3216673a1d52/how_to_open_a_quell_fire_alarm.pdf
    • https://uploads.strikinglycdn.com/files/ecb3c926-ac38-4374-8d92-1ce260c91d4f/kamopororomo.pdf
    • https://69f6cc44-9198-4e41-bafa-43503dba92bf.filesusr.com/ugd/dec231_c63ccfb49f6e49d98833464970d6f5ef.pdf?index=true
    • http://salajire.onlinewebshop.net/grade_5_worksheets_canada.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_off0000f290.bin
9f389f05010013ed35a45ba195f8d40a00d28d3dc93931d044169c44d676d123		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF290 5148 bytes
font_01_sfnt_off0001040f.bin
36a832688662708a87b19cb2fd3d166ff78455000006692bef7c0e2bb01a5619		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1040F 10896 bytes

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