Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e662555310bb8e1…

MALICIOUS

PDF

34.8 KB Authoring application: ImageMagick First seen: 2020-09-24
MD5: 1d775e20735ba5fe736c104c1688c482 SHA-1: 065b4bd879aa0a68b896a6cba38a0f71b0aa7fdb SHA-256: 7e662555310bb8e1f45d22b36b1c72b75a10d3ae8c60ca6d72e1b10db11f58e6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and link farm suggest it's part of a phishing or content distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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 http://naddin.space/uploads/1/3/0/6/130639438/d9d8ea86cc.pdf In PDF document text
    • http://www.dustywindowsills.com/uploads/1/3/0/4/130483303/5700322.pdfIn PDF document text
    • http://steffies.net/uploads/1/3/0/8/130814584/6261150.pdfIn PDF document text
    • http://berniesforbernie.org/uploads/1/3/0/4/130435956/4276623.pdfIn PDF document text
    • http://nashvilleperformancepsych.net/uploads/1/3/0/3/130323789/ddb6d3f5a6ab662.pdfIn PDF document text
    • http://tecnialuminios.com/uploads/1/3/0/4/130488736/sozidiv_giligan.pdfIn PDF document text
    • http://seaturtlepaperstrawcompany.com/uploads/1/3/0/4/130435661/xamanaviba_vumedetaxu_tupiz.pdfIn PDF document text
    • http://www.littledarlingscookieco.com/uploads/1/3/0/2/130289554/686bf2f39ee.pdfIn PDF document text
    • http://triple7studio.stream/uploads/1/3/0/6/130639019/7724054.pdfIn PDF document text
    • http://hostmaster.naeye.org/uploads/1/3/0/4/130476012/2901063.pdfIn PDF document text
    • http://www.expertmobileblasting.com/uploads/1/3/0/5/130588740/vumelonag.pdfIn PDF document text
    • http://455.bpmtc.com/uploads/1/3/0/5/130590168/130590168.html#norethisterone+dosage+for+period+delayIn PDF document text
🗂 Part of campaign: dustywindowsills.com 4 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC9 8640 bytes
SHA-256: 00af61f49ae8b5325a22ae2dc21d910451dffcb9e8f00a9437e61000e08009a4