Malicious PDF — malware analysis report

Static analysis result for SHA-256 e301112a1147c1cb…

MALICIOUS

PDF

29.5 KB Authoring application: Serif PagePlus
MD5: 8abca8f5c31c9d5774909a884c89c62c SHA-1: 6d8cc24613e2a057fcc635531c5d28bf135f2b21 SHA-256: e301112a1147c1cba8e892343e364b0a0caf7a6b497da560cc250446d71c173b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external websites, a technique commonly used for SEO poisoning and phishing. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this. The document body, though heavily obfuscated, contains references to an 'Instagram logo pic' and a list of URLs, indicating a lure to a network of potentially malicious sites.

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://portwingmarket.com/uploads/1/3/0/5/130588861/xenepuvak.pdf
    • http://mytfillin.com/uploads/1/3/0/6/130621475/famunivojude-fokugofirekax-litarilakom.pdf
    • http://coltsound.com/uploads/1/3/0/2/130287878/3088836.pdf
    • http://southeasternclubcl.com/uploads/1/3/0/7/130739173/4422925.pdf
    • http://mercedesudaeta.com/uploads/1/3/0/5/130545360/7127487.pdf
    • http://morabezacatering.com/uploads/1/3/0/5/130550679/2305222.pdf
    • http://belliesandbundle.com/uploads/1/3/0/5/130588988/485942.pdf
    • http://fosijo.opros-russia.online/uploads/2020/01/28/5854799.pdf
    • http://progenic.co.nz/uploads/1/3/0/5/130589007/tubosutu-tefis-kevajona-gadisebepifi.pdf
    • http://thescentedsheep.com/uploads/1/3/0/2/130272979/130272979.html#instagram+logo+pic

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011c0.bin
ddf0c236095375d1c23a4bace8a46ab8db59618f34bea33a07cac9deb2c84882		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C0 8248 bytes

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