Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee26936a31bbcb61…

MALICIOUS

PDF

66.6 KB Created: 2020-11-13 04:34:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 94ae2dbcdcae5257ac59dacbebf4e5e3 SHA-1: ebe07561f9650b8cbad9cd2e6eb3f7e85d27c888 SHA-256: ee26936a31bbcb6144439421d46e9f4f17aef09ee2ea2b0ee330936cc3c35534
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or redirect the user. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a game title, suggesting a lure to a malicious URL.

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://traffking.ru/123?utm_term=the+most+dangerous+game+main+conflict PDF link annotation
    • https://nabesoke.weebly.com/uploads/1/3/4/0/134042749/beputajape-sazetuwes-wepet-nivuj.pdfIn PDF document text
    • https://lunokebu.weebly.com/uploads/1/3/4/6/134648327/monirugobefufixelatu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/486ecd3e-ab55-4cfd-b9b8-7a5978555b11/bastien_piano_for_adults_book_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df49392-3979-4c8f-8ce7-3565d8ac3372/56619062857.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23f4246e-e326-4d06-a3c1-41bbea9b002b/xasuxasudixiramupotap.pdfIn PDF document text
    • https://s3.amazonaws.com/sodoxi/lg_441g_user_manual_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/le_code_ebcdic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/978e23dc-6c0b-4cce-8df2-2e0516681d88/borderlands_2_weapon_codes_gibbed_imgur.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/bosch_tassimo_manual_lights.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a42150d-8128-40fb-bdf0-18cae443f5ff/96639635633.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fd120ff-3ff0-4a2d-a79d-6e8993c6d863/david_kibbe_metamorphosis.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/bright_futures_4_year.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_off0000c8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FA 5384 bytes
SHA-256: 5c43658808115781513d3a4a326a3a9c39a9173f874fce8ce557183be34210ce
font_01_sfnt_off0000db1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1A 10196 bytes
SHA-256: 6ea5152baf765d3e4b27e3aa0b5cc8344a3494d0cb0a7ed10bdf9465c58d9bc8