Malicious PDF — malware analysis report

Static analysis result for SHA-256 a405adda5c9d9ba2…

MALICIOUS

PDF

152.1 KB Created: 2021-03-27 21:43:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: cb26ab7998a013f56ffd723487b4e98b SHA-1: ccd8e482bd6e6245dd6413cd9b4a60c3071e6f6a SHA-256: a405adda5c9d9ba2bd2e0469680a326a36c4bc4c8d85ff026048e429d0f71447
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL and document body content suggest a phishing lure related to 'fate grand order saint quartz hack no survey'. While no scripts were explicitly extracted, the PDF structure and embedded URI are indicative of a malicious document designed to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9851

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://seumenha.ru/wix?keyword=fate+grand+order+saint+quartz+hack+no+survey PDF link annotation
    • https://cdn.sqhk.co/bubiwalifeda/jegc01s/37502165214.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406481/normal_5ffac00776de5.pdfIn PDF document text
    • https://cdn.sqhk.co/modesarox/fjaf0jh/32522992557.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385012/normal_5fd957ce6f952.pdfIn PDF document text
    • https://cdn.sqhk.co/gopefovepagi/adgf0if/gold_and_silver_prices_per_gram_today.pdfIn PDF document text
    • https://cdn.sqhk.co/pevedapev/jhiiI5n/jw_library_app_play_store.pdfIn PDF document text
    • https://cdn.sqhk.co/tusumawibe/ijhdGgi/find_my_phone_samsung_s20_ultra.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/944faf3d-c024-4e7f-b4fe-841bf551fd5c/how_much_does_a_medical_lab_technician_make_in_new_york.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ba4350f-615d-4ae5-b34b-a740ed9c94a1/how_to_use_weight_watchers_scale_by_conair.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/jibonebajirujometapage.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/boy_baby_shower_games_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/57806627259.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/revev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/707cc5df-2363-44b2-b82e-9c59a84be25f/how_to_contact_robinhood_by_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/boat_loading_guides.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/famaxejefosutako.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/mott_s_strawberry_applesauce_nutrition_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d3f3d32-159c-457d-beef-81d06edb1a99/matameniw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c157b1e-e01b-4eb1-873a-d813f0de2db0/after_microbiology_which_course_is_best.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/16421832857.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001eaa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EAA1 3372 bytes
SHA-256: dc4579d1fedbb6e535255c5166b9c1240a5f03f51dbde57b6875218d62a19070
font_01_sfnt_off0001f6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F6B3 5408 bytes
SHA-256: 89f5f6892549ff79912a95eb5f4ec5eb9e3182be8717793479e5e2f44adeecb2
font_02_sfnt_off00020913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20913 2196 bytes
SHA-256: 4338404706d3ea6754e647ee4e0f5a492a18c4097caf7894d0f591347b2b8a9d
font_03_sfnt_off00021312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21312 15504 bytes
SHA-256: 78ce1020a0e436b77065a42995f6b20ec9ade3dae1adc733fa09310925a5a2b6
font_04_sfnt_off000240db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x240DB 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230