Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a5cc1f65d043b10…

MALICIOUS

PDF

96.8 KB Created: 2020-12-21 05:47:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 9ec5ecb44e3c23f3b853ebf95848a98a SHA-1: 569e62091d84cc2e25c74e775aaecfe53d6996c4 SHA-256: 6a5cc1f65d043b1059e9d24e70c6b3aa6d8f1a50125e99508f69cf2430e0913d
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that, when visited, likely leads to a malicious site. The document body is heavily obfuscated and appears to be junk data, but the presence of the URL and the detection signatures suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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=pinball+arcade+pc+cabinet+mode PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454287/normal_5fb99c0edda00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474176/normal_5fd18b521bf87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422909/normal_5fa6b6a1bc2a6.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/zosevid/bamemivevonalosoruzebo.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/nanimudakibu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f9fbeda-34b0-42b0-bb54-413f66ca1a32/63936356365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7cccaff-f3cd-48ce-9328-a21866490372/4207961907.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/stream_software_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/identifying_conflict_in_literature.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/automatic_transmission_fluid_vs_manual_transmission_fluid.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DC 6440 bytes
SHA-256: 2ce5a7286efefc5aae27ce1c31b3347e159d00bd30cf97f509a0b7f7d49caffb
font_01_sfnt_off0000e6d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D1 5184 bytes
SHA-256: 6f22658d395e31686d39ee8a8f944341b667c03bd11f8f6eee574a2f563432fa
font_02_sfnt_off0000f84b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF84B 13552 bytes
SHA-256: 07628ac734ad63f87dfb7537297f5fbe04b35fc451e5331693b0041aeab5c632
font_03_sfnt_off00012080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12080 11600 bytes
SHA-256: bae6f100f84943b09debfcbea2d3b075e375369bcc0a232da911cefcb38d16d1
font_04_sfnt_off00014873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14873 16420 bytes
SHA-256: ed725499bedbac8887e04ebf0ec6f16ca9fe6b1b5feed7b020a6e6ff55c7ce05
font_05_sfnt_off00015e6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E6D 1736 bytes
SHA-256: 1648accd5638f26481c437d0e436fdfb03edab78dab75f4e73239278c8cddc19
font_06_sfnt_off000165b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x165B1 6148 bytes
SHA-256: 3bfa56b83e1be8e917a5e0b35b589e0776bda4bd985d36b384b0af2f42465c2c

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