Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dc39fc4af99f54c…

MALICIOUS

PDF

38.5 KB Authoring application: Inkscape
MD5: 52e1631965e18c4ca3777c3b99cc1bb3 SHA-1: 0d25e3f6c7c25ddaf94c890d8cf8623b47553f9c SHA-256: 8dc39fc4af99f54cfa51da7315fdaa813ae69fc44d136c26db3d8ca11b724023
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This technique is often used for SEO manipulation or to distribute malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://sacredfeminineuprising.com/uploads/1/3/0/4/130483243/weteb.pdf
    • http://remarkablecanine.com/uploads/1/3/0/5/130551341/buzejodejemexez_vexekefutojav_bonulajalewak_towobivov.pdf
    • http://moneymentorph.com/uploads/1/3/0/7/130739225/343501.pdf
    • http://woodridgefarm.net/uploads/1/3/0/3/130313183/ed3868346.pdf
    • http://calasanzpbavaro.edu.do/uploads/1/3/0/4/130483309/baxajivus.pdf
    • http://bikevaultsystem.com/uploads/1/3/0/6/130639074/nezopifex_zorasuweguju_tozap.pdf
    • http://cacaitodance.com/uploads/1/3/0/6/130639436/147ba.pdf
    • http://mylebleutriad.com/uploads/1/3/0/7/130775654/603c3e.pdf
    • http://chicagohcven.com/uploads/1/3/0/7/130739239/b7fcaf706594f4.pdf
    • http://spectrum-capital.com/uploads/1/3/0/5/130588430/1902480.pdf
    • http://lehip.net/uploads/1/3/0/2/130273623/tebajajaxoduji.pdf
    • http://rochecenter.org/uploads/1/3/0/3/130313249/130313249.html#text+animation+after+effects+free+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f67.bin
3687e333ba56ae247dab3ccdae31d5a52b94aa703e7148cbae83027b9886f18a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F67 7964 bytes

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