Malicious PDF — malware analysis report

Static analysis result for SHA-256 15d1d00e3fa08114…

MALICIOUS

PDF

68.8 KB Created: 2020-12-14 05:21:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 65f83428b8d94bfb769a06159606bc7d SHA-1: dfc6ff4db2334d78486c9e71a8c9f99f796f990b SHA-256: 15d1d00e3fa081141597469189f6027b4c2c393d810ce2f88580298d0cdc0afc
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://trafffi.ru/strik?utm_term=story+map+graphic+organizer+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387036/normal_5fd6d13a1b49a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444100/normal_5fbcb7aeeb7a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394082/normal_5fd329ffc80a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387817/normal_5fc30d768c156.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379487/normal_5fa987ed1ac23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458394/normal_5fa7f8c4a46ce.pdfIn PDF document text
    • https://zabuweror.weebly.com/uploads/1/3/4/4/134498188/6156898.pdfIn PDF document text
    • https://sapujufokobifaj.weebly.com/uploads/1/3/4/8/134847621/4052838d.pdfIn PDF document text
    • https://xexegetogud.weebly.com/uploads/1/3/4/3/134375989/sinemowu.pdfIn PDF document text
    • https://gilepinewuje.weebly.com/uploads/1/3/4/0/134096317/7fd55.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc66d97df132613bbe366a6/t/5fd0fd79d598617c9e610207/1607531898290/mountain_climb_4x4_mod_apk_android_1.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/82955698601.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/18476121768.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc681d15e8e827d42b49382/t/5fd601d1481cfa31adbd368f/1607860691251/16129_train_platform_number_in_egmore.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc100ee92c50b1a1e781c95/t/5fc6e5b1a038a451bcde086e/1606870450172/hollywood_rush_game_download.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_off0000d116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD116 5476 bytes
SHA-256: c1c6ffc21addf19ce6212a1bc1abb941d4eaefbfa2931e34ded9f1214c499507
font_01_sfnt_off0000e3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A1 10052 bytes
SHA-256: dbb2e942cf71795c324e3d9d98e07bf8c5924c552dd46a7dff446f30f9f3c5da