Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6d0e11c53011744…

MALICIOUS

PDF

35.9 KB Authoring application: Serif PagePlus
MD5: c62956b9cf9bd84cd966e0ae7184feea SHA-1: 6697bd44d72937bbc43f8704f8c1ed01c437229e SHA-256: d6d0e11c5301174417514a695525fb7f0c709208a083488fce7fd15f85e8295c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF files, a technique commonly used for SEO poisoning or distributing malicious content. The document body itself is obfuscated but mentions 'ACCA P7 Past Papers', suggesting a lure to entice users to click on the embedded links. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

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://votepedrini.com/uploads/1/3/0/2/130272406/rekajob_poper_sivijapokewaniv.pdf
    • http://indienavi.net/uploads/1/3/0/3/130379457/9695ac5f45.pdf
    • http://elccauction.com/uploads/1/3/0/5/130590029/435ebe5837a8.pdf
    • http://dek.stay-famous.com/uploads/2020/01/28/fejesagi.pdf
    • http://susanmastalsfoundation.org/uploads/1/3/0/4/130478174/kegulalamivud.pdf
    • http://autosearjig.com/uploads/1/3/0/5/130539428/2283888987dfb.pdf
    • http://psychotherapy121.org/uploads/1/3/0/6/130603928/namasiwu-marojomufuba.pdf
    • http://lbadisasterrelief.com/uploads/1/3/0/6/130639605/fonutojitefapor.pdf
    • http://newperspectivemedical.com/uploads/1/3/0/5/130539795/130539795.html#acca+p7+past+paper+analysis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011df.bin
ab2ecaac5e12cb7882f70e1567cf016cd94474346a6e63eb58ab91e509879041		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF 8492 bytes

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