Malicious PDF — malware analysis report

Static analysis result for SHA-256 3348ee3fe03aa4b9…

MALICIOUS

PDF

69.4 KB Created: 2020-12-11 03:01:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3fdb9f2d15ee0b7777beab107fe5bb5d SHA-1: 22c8ce6868e2ceac31016709f44186d7960641aa SHA-256: 3348ee3fe03aa4b942fc05566549cff2d200876a007ee6257086defba1033968
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://trafftec.ru/strik?utm_term=equivalente+de+80+grados+fahrenheit+a+centigrados PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379038/normal_5f8a2d58044ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_5f8dc9cf81d76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409394/normal_5fc2f3474a9d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382613/normal_5fce278fe9cf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373508/normal_5f9b33d15b9ab.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://static1.squarespace.com/static/5fce915b35a0cc373f931ede/t/5fd14857c354811bd59cf3ee/1607551064316/about_kobe_bryant_death.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22cb14e6-2b0f-4cf4-a2b0-d9fa30723ea5/manna_food_bank_pensacola_florida.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf612c645712565432acea/1606377773455/double_agent_iptv_login.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/formal_answer_to_job_offer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf55fb9b1ed03538d20037/1606374907440/79561891442.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc576fe6609fd0ee7b05742/t/5fca618127154a49e9280e55/1607098754496/75083074219.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10866e5c7695ca99c5cd3/t/5fd081228f1ddd5ccbde7148/1607500066633/talking_t_rex_dinosaur.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e8305687f52b6b812c21/t/5fc412eb145a8629dc2fdaa5/1606685420002/pathfinder_psychic_warrior_handbook.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc712e5c43b171198888532/t/5fced37705f6f27807483906/1607390078672/bajorov.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc578abd49dd1244753261b/t/5fcf7e97509e863c6832c5e0/1607433887305/from_the_sea_in_spanish.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5700ff7cf8c754049529a/t/5fd0ef2dd8bc5252ae9c3161/1607528237918/vizowuvivegeguf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f3327a4-1c6e-4f53-8d05-9d96b3ce64cd/dabetukanopu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA68 5644 bytes
SHA-256: 0317c030057e73c82132460b9aa8033e97720452c608e45732f60e62717221f0
font_01_sfnt_off0000cd98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD98 14620 bytes
SHA-256: 3e18b6164da91b0904db44dde770b53e502ce616ee89e8715fe24221ff1c164a
font_02_sfnt_off0000fa87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA87 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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