Malicious PDF — malware analysis report

Static analysis result for SHA-256 f734fd46a0677545…

MALICIOUS

PDF

43.7 KB Authoring application: Inkscape
MD5: e133232ed37633ac6fca9247092ec8eb SHA-1: 438efe54533223a6e5ffc39f82caaeb76315f975 SHA-256: f734fd46a0677545af4c4bd7c906164eab8257411464b2a5b31441f8c5136b99
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains numerous URLs pointing to external PDF files, suggesting a phishing or redirection campaign. The primary attack pattern involves luring users to click on these links, which likely lead to further malicious content or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://gogorajafe.technologysolutionsandsupport.com/uploads/2020/01/28/991036.pdf
    • http://buysellbell.com/uploads/1/3/0/6/130621282/47d6d.pdf
    • http://elizabethgracepaperandpen.com/uploads/1/3/0/5/130551427/1999508.pdf
    • http://nashobaspeechandfeeding.net/uploads/1/3/0/6/130604931/6055830.pdf
    • http://strayashop.com/uploads/1/3/0/6/130639665/dijatuferepitoti.pdf
    • http://apkroad.com/uploads/1/3/0/5/130590339/707568.pdf
    • http://callanjames.co.nz/uploads/1/3/0/6/130640061/godafesivorele.pdf
    • http://stoneoakathletics.com/uploads/1/3/0/5/130539841/vesavejozuze.pdf
    • http://mrsgant.org/uploads/1/3/0/3/130323164/6122294.pdf
    • http://drpattymain.com/uploads/1/3/0/2/130289532/8748752.pdf
    • http://ahanna.org/uploads/1/3/0/5/130550846/boranik.pdf
    • http://mikhaelbassilli.com/uploads/1/3/0/5/130588240/faxoxizoridawokugo.pdf
    • http://carpetcleancary.com/uploads/1/3/0/6/130605248/130605248.html#non+chron+report+examples+ks1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012dd.bin
0f2c42194c3e5525f84f74494394ac9fe19ca1c88b87ed4f8954b9f119cc4ac5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DD 8384 bytes
font_01_sfnt_off0000639b.bin
669a22844ddb84b64a1d93eb6147c2b8b7ca76f4316fe4be2bbf69c96252e72a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x639B 16180 bytes

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