Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdabfda20df90e7c…

MALICIOUS

PDF

36.2 KB Authoring application: Serif PagePlus
MD5: 680b0212a11b21764fc966f18fe94544 SHA-1: 517a48c1d2a107d870108c232f80c2741ecfe677 SHA-256: cdabfda20df90e7cfbed5dbb9a41bba0439f9b4d324ae0339423c57d62feedc2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains, indicative of a link farm or SEO poisoning attack. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'SE_LOLBIN_RUN_COMMAND' heuristic further support a malicious classification. The primary intent appears to be directing users to a network of potentially malicious or spam-related content through these links.

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.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://goodnightvodka.com/uploads/1/3/0/6/130620902/4864408.pdf
    • http://healthtipsfordogs.com/uploads/1/3/0/5/130539155/lefaluzasefovowuxi.pdf
    • http://whisperingsheepholdings.com/uploads/1/3/0/5/130550749/ab4a98a5c2fd84.pdf
    • http://thisfuckingsucks.net/uploads/1/3/0/5/130540869/2243128.pdf
    • http://tracevilab.com/uploads/1/3/0/2/130270951/afec8fae861f9.pdf
    • http://woozeyacresllc.com/uploads/1/3/0/6/130621447/ganebikelijo.pdf
    • http://doobynuggets.com/uploads/1/3/0/6/130639868/pejulumigegewi.pdf
    • http://iot4d.co/uploads/1/3/0/5/130546244/6920299.pdf
    • http://kimghattas.net/uploads/1/3/0/6/130603861/083c661.pdf
    • http://claytonchapinportfolio.com/uploads/1/3/0/3/130313784/4453978.pdf
    • http://johnhenryfox.com/uploads/1/3/0/6/130639315/4610020.pdf
    • http://migrationbot.ca/uploads/1/3/0/6/130621374/pozoxusovu.pdf
    • http://www.mikeandpreet.com/uploads/1/3/0/4/130488387/130488387.html#brachioradialis+pain+icd+10

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036df.bin
874a8c0aaea0d9e35fd300f59388d9011ae4f6810d5604033cf6b68e662edeae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36DF 7600 bytes

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