Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2340c85e731610d…

MALICIOUS

PDF

77.4 KB Created: 2021-03-24 19:39:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bb115d456f72e8f8f7743dc8091c03e5 SHA-1: 52f069e2f47b0e7f59fe4347798bcac7a0c9c477 SHA-256: e2340c85e731610d9b3fd6bd70fbb74919c153140c42951d46a740e9ad4800ef
96 Risk Score

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 0.9998

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://midufefew.ru/wix?keyword=fallout+3+xbox+360+guide+pdf PDF link annotation
    • http://helplnstagramcontact6088757.com/nulezuxd9iz0.pdfIn PDF document text
    • http://gaydating.world/movimento_circular_uniforme_e_uniformemente_variadox5v4u.pdfIn PDF document text
    • http://meetsol.xyz/80783660819cyj5p.pdfIn PDF document text
    • http://usesol.xyz/mean_median_standard_deviation_pptgullq.pdfIn PDF document text
    • http://helps-lnstagramcopyrights-about.com/robinson_crusoe_malayalam_free_downloadl0rhk.pdfIn PDF document text
    • http://usacarins.com/pll_algorithms_2_lookcy7jq.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/cc1d1fcc-315a-4875-8ee3-992c4e41cb90/6687394436.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/witirasanaj.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/georgia_weather_report_today.pdfIn PDF document text
    • https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_f5569ed329f443fcad92b57fd623770c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/801c3d00-56c4-4eeb-ab1c-5606ecdb05de/10995388845.pdfIn PDF document text
    • https://2b08c346-38d8-4763-b559-bb9d4fff2313.filesusr.com/ugd/40c9d6_60160a67df00411da7a6d32bb8678506.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/54bbe45d-23e0-4823-8dbc-b2371e19965e/13966278987.pdfIn PDF document text
    • https://044e8d80-c429-4a1f-820d-9b443c65b389.filesusr.com/ugd/53c654_0fce33bddf8e453d9a66514cff0310c6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gopuze/93305433993.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/atm_card_request_letter_format.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/95916905093.pdfIn PDF document text
    • https://05e27880-d5e1-4d3d-8428-ba943e9300bc.filesusr.com/ugd/b56239_ff2cd3144aa94fefa0ba82aabefe8b74.pdf?index=trueIn 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_off0000e546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE546 5332 bytes
SHA-256: 5f87b8679483b7f2052d27da07726c6e27a213fc947e21df7df73afffc23809a
font_01_sfnt_off0000f776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF776 10332 bytes
SHA-256: 1bf78bc1c1f6c6bcb37804f50111b0456b6ecc8e2e16ad9a7085541998473130
font_02_sfnt_off00011aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AA4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f