Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4f5f5228a8bfc1c…

MALICIOUS

PDF

79.5 KB Created: 2020-12-13 13:28:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2a9c9215530fd7af90f2cb1165d96ed3 SHA-1: 267370f5186845beccf351dc7b4feaebe74688da SHA-256: b4f5f5228a8bfc1c92e86d600123f73917a06b2e6df60fc9d9489362238a3315
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9995

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://trafficel.ru/strik?utm_term=oh+my+girl+arin PDF link annotation
    • 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://static1.squarespace.com/static/5fc5cbbe104edf1d77a2c1c8/t/5fcb738c1ef6d1662feec546/1607168913946/ninudamib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d0065e8e827d428d60b5/t/5fc2e8fb9d79364840ee1765/1606609149885/mopa_san_diego_board.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7d5df04-9823-4b46-999a-76e42004d17c/84290581897.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dbca2e537a05ef08df7c/t/5fc271aefa04221c716e9ba8/1606578607148/97854244155.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31b289d9-5feb-46e6-a0a0-6096c6e1de85/45726501424.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc788308d6e8c3767c3d910/t/5fcc8e1bc836a917f906fad1/1607241245788/how_to_draw_a_monstera_leaf_easy.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5146cbd14ff0dd2b7912f/t/5fcd313283d2ac65cc1d71a2/1607282994534/womefavak.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc292fabda9c57a97c8d54c/t/5fc76a63efc65c5b7a43212d/1606904420887/jejutivizadufumenita.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc38b1e9698b02c7f3141e7/t/5fcafd1e85bc3a28a60250b9/1607138590531/tanugukowofago.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/92687534797.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf86e73299f0c54398aa1/1606219887691/luvotafuw.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c3a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A4 3572 bytes
SHA-256: d0bdd12b67c9b54ae81753ee32a34633b499b4606e8c7124246cb150958c0c61
font_01_sfnt_off0000d091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD091 4532 bytes
SHA-256: a896e50c5902516f6cbed689898aa998563b7b34a813379d3c02493ee6fdf114
font_02_sfnt_off0000dfb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB0 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_03_sfnt_off0000e83e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83E 10728 bytes
SHA-256: 49d12845f2d0d34dc74419913d8838538065d93cccc4c5fde9302e94f9affd3e
font_04_sfnt_off00010d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D2E 16164 bytes
SHA-256: d781c508aaf473e50263a6aabc3f4161b7fa10724c54bb8d35addee38a7f1c44
font_05_sfnt_off0001222a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1222A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.