Malicious PDF — malware analysis report

Static analysis result for SHA-256 86fde606c4e3af45…

MALICIOUS

PDF

58.6 KB Created: 2020-11-13 04:30:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68ebed27bf34444348f09882f8155de5 SHA-1: 8e32368186e1d1b29488303dfb6ad63e6175c24c SHA-256: 86fde606c4e3af458a9b3f60259adc71258a27f26e4f1b4cecc57b95a46d8442
154 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting an attempt to direct users to various websites. One of these URLs, 'https://trafffe.ru/aws?utm_term=augmented+operator+advisor+android', is flagged as potentially malicious. The ClamAV detection 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0' and the ML classifier output further support the malicious nature of this document, likely used as a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8786

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/aws?utm_term=augmented+operator+advisor+android
    • https://wenilitedosi.weebly.com/uploads/1/3/4/3/134315728/1891477.pdf
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/kovewa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1deee1d7-a88d-4f62-8de5-e2ae077d7f63/what_is_a_push_factor_for_immigration.pdf
    • https://s3.amazonaws.com/tudawufed/lala_ramswaroop_ramnarayan_calendar_2019_free_download.pdf
    • https://s3.amazonaws.com/wexoteluwag/sgu_bus_schedules.pdf
    • https://uploads.strikinglycdn.com/files/730a6415-5ca9-4fbd-9150-0c4f509483a9/sakukekumaludirobobajus.pdf
    • https://s3.amazonaws.com/tunenijexe/69982057420.pdf
    • https://s3.amazonaws.com/tiluwisulepam/84644362851.pdf
    • https://uploads.strikinglycdn.com/files/23ba1487-94e8-4a92-a837-efbac173b23d/tapuki.pdf
    • https://s3.amazonaws.com/tawosutosuxi/darafolajepelotazuze.pdf
    • https://uploads.strikinglycdn.com/files/d77a8bcd-4136-49b6-bb82-e52b8aa08c04/how_old_do_saiyans_live.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c04d.bin
1942fc98d9a456b8d8aceb0b8da9bc616ac39ef48922126e26f63206d80cc85a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC04D 3600 bytes
font_01_sfnt_off0000cd3c.bin
3c18e65aade91a9fc9321545a01e06a5a1b419faf9677ee1a17db0fe9aabc008		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD3C 5296 bytes

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