Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fcaff02eb0c1510…

MALICIOUS

PDF

38.5 KB Authoring application: Scribus
MD5: 586da62b6d319a64e39a6208cad950ec SHA-1: a52c4de4a1e1554bb28dc408b5ee112a4e33dc2b SHA-256: 9fcaff02eb0c1510fec813e007788a01f3f9d6ab9fadfc1b6e37f2b19fb1f54d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ClamAV detection also flags this as a phishing-related threat. No scripts were extracted from this sample, limiting the ability to determine specific execution behaviors.

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://shhugarshop.com/uploads/1/3/0/5/130539881/jisumaranebuxaf-lepinuxobole.pdf
    • http://papercraziness.com/uploads/1/3/0/5/130588207/kejofixapuki_serudisemez.pdf
    • http://beers.sg/uploads/1/3/0/4/130489650/9977948.pdf
    • http://nevadachallenger.net/uploads/1/3/0/6/130640236/depav.pdf
    • http://radicallyawakenedmasters.com/uploads/1/3/0/5/130590308/2760354.pdf
    • http://bukomug.storeclick.xyz/uploads/2020/01/28/digoziv-zefaxezuvefiso-jadalam.pdf
    • http://ndhumanities.com/uploads/1/3/0/3/130379231/2068915.pdf
    • http://baynotnhac.com/uploads/1/3/0/5/130539987/dulilaf-wuxofaw.pdf
    • http://cecilyeiferle.com/uploads/1/3/0/6/130639445/130639445.html#full+wave+controlled+rectifier+proteus

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001163.bin
ff9a417e74e97a63a8baaa089b7e1afd1796ba48e1de5010c8e1f73a9332d1ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1163 7212 bytes
font_01_sfnt_off00005a00.bin
05199517723876d68d5644938ca45a09faaff5ec3c42cb80aba4d5ec00a8aeb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A00 3088 bytes

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