Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9d7c4710d03b6d4…

MALICIOUS

PDF

95.6 KB Created: 2021-02-25 17:25:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 424c49d8b7cbe48d7367a388c29889ca SHA-1: 24223dfdfa2f6035ecd4a4baf846520ecdc94e7d SHA-256: a9d7c4710d03b6d417bb187e97a177d2c79f6bd356b63fdd5afdae5e2cdc4b29
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://maypoin.ru/123?utm_term=pretty+little+liars+cast+ages PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4488572/normal_5fc593e8b53df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450636/normal_5ff50eab5109c.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/what_to_eat_at_taco_bell_on_weight_watchers.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/ijfgdha/dream_score_soccer_champion_mod_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494648/normal_5fc5b4bb343e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470835/normal_5fda3ce2d9390.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387232/normal_5fdd8a6019387.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://s3.amazonaws.com/wozowuledij/72520887745.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/catch_me_if_you_can_dual_audio_hd_movie_download.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/ribefexilodura.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/viwuvajegamodujixigimomap.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/bagakadawaxobagijizupexe.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/addressing_key_selection_criteria_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/24204091133.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/84266986602.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_off00013061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13061 4640 bytes
SHA-256: d8b6c287d070756cf7e5474f226864863c5db22fef4127aa06c4c6abef99da42
font_01_sfnt_off00014038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14038 10240 bytes
SHA-256: 20624e7b811b45f2f68f465a66b3b77c975249b3c23ae24f218bc7b2d2e91c5c
font_02_sfnt_off00016345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16345 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f