Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2e5ed181453bd0…

MALICIOUS

PDF

31.1 KB Authoring application: Soda PDF
MD5: b78b1015aff7ad1fbf01a1bfdc75f19b SHA-1: 9e866b494825c2d50894bd7cd3c2a6e7e2035541 SHA-256: fa2e5ed181453bd09d97b3b7821e92f8ea2d421bf51ce67174b0d79a9dccd111
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning and phishing. The document body mentions a book download, which is likely a lure to encourage users to click on these malicious links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and malicious download intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://myjamesandrews.com/uploads/1/3/0/6/130603948/zokoziledaw_daxonoborikusu_falun_tejizigokupa.pdf
    • http://learningtheworld.org/uploads/1/3/0/6/130640006/zawufofog_ketes_vepuvawilam_bipumu.pdf
    • http://itiswritten.net/uploads/1/3/0/6/130639241/9205956.pdf
    • http://northamericanbazi.com/uploads/1/3/0/3/130323315/bitudulow-lukote-zapeduzazutevo.pdf
    • http://guided-wellness.com/uploads/1/3/0/6/130620543/pelevo_wufafipi_ripululopanu_wenofejewikaruk.pdf
    • http://pejikix.totachi-fs.com/uploads/2020/01/28/4256185.pdf
    • http://orockrotorua.co.nz/uploads/1/3/0/6/130620490/votusemisilo.pdf
    • http://domterapii.com/uploads/1/3/0/5/130590338/eeb2810446e3.pdf
    • http://doctorpk.net/uploads/1/3/0/2/130270740/2166310.pdf
    • http://smart-k9.com/uploads/1/3/0/3/130324192/kararedijejetutit.pdf
    • http://nnetherland.com/uploads/1/3/0/7/130740082/leruriwum.pdf
    • http://arlingtoncarpetcleaner.com/uploads/1/3/0/6/130639311/130639311.html#the+thrill+of+the+chase+a+memoir+free+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001319.bin
d5247e9f8ca9500197f826515c78ce73269a5d50a4cd90c9fa26a757de1cd414		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1319 7696 bytes

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