Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2abf16edddd15b…

MALICIOUS

PDF

35.3 KB Authoring application: Pdftk
MD5: d1dc4582f4d72e219294246c70415593 SHA-1: 09be24fa1c9f3ffb45acca2f21aa75527393d108 SHA-256: 2e2abf16edddd15b315df039c485099de2b67d5cf2734abb08cf94257ec2df0e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to various domains, suggesting a link farm or redirection mechanism. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution through these links.

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://cpt-you-are-not-alone.com/uploads/1/3/0/6/130604848/5011798.pdf
    • http://walk-cards.com/uploads/1/3/0/7/130776514/tazijeruki-karedutejala-jafizekav.pdf
    • http://againstklimt.com/uploads/1/3/0/2/130272575/4518031.pdf
    • http://campingdeberghoeve.com/uploads/1/3/0/5/130550818/suxupulugip.pdf
    • http://cafefresco48.com/uploads/1/3/0/7/130776821/vekimag.pdf
    • http://eastside-fwb.org/uploads/1/3/0/4/130483153/lerebojopoxu-suvipoxexu-fimotivabep-junubexa.pdf
    • http://nationwidehealthgroup.com/uploads/1/3/0/6/130621342/048d938.pdf
    • http://mossgardennursery.net/uploads/1/3/0/5/130541552/7674512.pdf
    • http://joycejudyfororegon.com/uploads/1/3/0/2/130287456/mabodikemej_zefametu_zapigalajunibul.pdf
    • http://passmankade.com/uploads/1/3/0/4/130490193/nawekalajomuz-dexon-gopafakadog.pdf
    • http://sexy-money.com/uploads/1/3/0/8/130813948/risatadof-welufabufu-wusozifaliji-difutosudixebi.pdf
    • http://ndchair.com/uploads/1/3/0/6/130620491/130620491.html#cover+letter+examples+for+management+trainee+position

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000324c.bin
0f648a8aeb95b66d5234d4036d24011d0eb54137574ff3795490e18569d15ecf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x324C 8008 bytes

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