Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d7a1668e7eefd7d…

MALICIOUS

PDF

79.7 KB Created: 2020-12-04 16:23:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 0adf948dcbaa23a4254dbea794e6b996 SHA-1: 16f62b32770eff1f4959c53d04cd8df7d3580ec0 SHA-256: 8d7a1668e7eefd7dd147ec35d4d75a63a6e59d4004f3241fde6955baa01a2914
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a primary malicious URL identified as trafffi.ru. This suggests a phishing or malware distribution attempt, likely using a lure related to the game 'Bitlife'. ClamAV detection and ML classification further support its malicious nature. No scripts were extracted, but the presence of external links indicates an attempt to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?utm_term=bitlife+escape+prison+7x5 PDF link annotation
    • https://lupilizeranal.weebly.com/uploads/1/3/4/4/134460298/tazojake.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/8703914316b.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/de336f36-6f15-4524-a55f-3f7271f53414/84467473755.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b5cdb5d-5488-49cc-8c69-b0fcec8bb867/30084654086.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/waec_result_2019_oitd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d102e303-0c29-412b-9a23-29cf7d4466c7/47250868828.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2aebbb8467722f1dfa14b/t/5fc9d2589bc93d20d9afca8f/1607062106599/boom_beach_hack_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7d1d550-6b20-4913-ae7a-7e4553706936/couples_clbres_fictifs.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/airway_adjuncts.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/ncaa_division_1_manual_2018-19.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/racing_games_unblocked_games_66.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d9052e537a05ef22535d/t/5fc6fb1f788a962b7c232487/1606875941271/remamonagiwefoz.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/7685830196.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/paracord_critters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62f0c240-3b7c-44e1-a1cf-ac466e3bd6c8/harry_potter_tome_4.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE300 5332 bytes
SHA-256: af753810e3735f119705e1be1d94b56e482f5063c7860519387cb49c1d287f59
font_01_sfnt_off0000f54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54A 11512 bytes
SHA-256: 874f7a96f78ec10970deb41d4857bfb91b799f1f6406839697839a0de4029383
font_02_sfnt_off00011b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B48 16196 bytes
SHA-256: 13873d145b8da2256cc9aff7ec32aedf7dd7de0e65fabb376e0f91dd1eea3996

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