Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdabecc2b5ea7a2…

MALICIOUS

PDF

96.3 KB Created: 2021-01-01 14:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 40a5bfa2d459855e04e7c2508ca7c410 SHA-1: 0228e5d722059bceda1b37ddd867f577f9d67347 SHA-256: dbdabecc2b5ea7a2d8be4bfc421360e806a8339b007fdf9a445a81937e2ccd50
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://traffset.ru/strik?utm_term=last+pga+tournament+at+winged+foot PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475872/normal_5fea2aa961377.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451755/normal_5fbc8f2f7572f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365646/normal_5f98e091e7f3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473415/normal_5fb4a7a04d42f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486368/normal_5fd895bc97611.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/petuvaxowegineligilugut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac2cc0ca-9846-41c5-a508-e5afb36782df/make_up_your_mind_meaning_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/91025483950.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d566c195-bf74-4a81-8554-f63a555866f3/introduccion_a_la_pedagogia_social.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/6897993527.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/bloons_super_monkey_2_hacked_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/42833338728.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/maladaptive_behaviors.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/854e65f1-cf35-467a-83a8-f632f3d528c2/mr_gobers_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f17e040-3062-4858-aa0b-b1ad6681aa2c/xomokibakozapuwuzaro.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_off0001389a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1389A 5360 bytes
SHA-256: f3a1889a292d7187d1330ed2084534beefa479e6e4523d2f9ff8056713eefa6f
font_01_sfnt_off00014ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AD6 12504 bytes
SHA-256: 3d24c2cac724db38e1c2cba758a625581a6d4f3edf1bc7b750392f612e0ee62b