Malicious PDF — malware analysis report

Static analysis result for SHA-256 1500a1e7181d4629…

MALICIOUS

PDF

64.2 KB Created: 2020-12-16 04:15:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 06b3c3cc7c969eae2243420c7f670f5d SHA-1: 37519af4f0d824c0f315db537a39fd25af045fd6 SHA-256: 1500a1e7181d4629295458a4fbf62316fda598a50dc8703304d919d8fb060566
136 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 specific heuristic indicating a payment redirection lure. The embedded URL, 'https://trafffi.ru/aws?utm_term=reset+password+email+template+salesforce', strongly suggests a phishing attempt related to password resets or financial information. Although no scripts were extracted, the PDF structure and heuristics point towards a social engineering attack.

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://trafffi.ru/aws?utm_term=reset+password+email+template+salesforce PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/1680231996.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53e3fbf71053ccb2c37b2/t/5fc647f23570fb44d1d895c5/1606830066922/free_pinball_games_unblocked.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc549e8c6d96458363f0fae/t/5fce4d913ff101154020d265/1607355794060/fufotenujokoxasesejuse.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/54030195314.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2bfe8abaecd33182e2f57/t/5fc5556e9ee0f32b8704ecde/1606767984845/mercury_outboard_motor_repair_manual_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf6703f75b166439aa841/1606284919923/cook_yourself_thin_stuffed_shells.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5d842be9b6939512cc2cb/t/5fce063e9aa2de0c64b995dd/1607337535028/pemuzizedelovojipife.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/1000_thread_count_cotton_sateen_sheet_set.pdfIn PDF document text
    • https://s3.amazonaws.com/suzitivasekoga/mount_and_blade_warband_skills_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/emulador_ps1_android_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5cea240f1034a5cca809d/t/5fcd66f6a87f9f1b19ec9a19/1607296758615/sovivavoxevezuda.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFFA 5400 bytes
SHA-256: 5521d3c0689585bcf80171f6e4f27b9364016d720bb73979d25b352ea61ab75e
font_01_sfnt_off0000d25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD25E 9876 bytes
SHA-256: 4b78d22cd28e11b304f0005c59e372b6ad1fafbabd6eb165198a191058d4b687

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