Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc15180ca41f5a15…

MALICIOUS

PDF

41.0 KB Authoring application: Serif PagePlus
MD5: 45c88706a73be2ce20fd92815c890699 SHA-1: 4c8ea5e96f9b346d92cf2d171bcc07aaec0cba5f SHA-256: bc15180ca41f5a1502b264f91039a4997f9979ce707ad54eabce3e173c5122b1
140 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO poisoning tactic. The document body, though heavily obfuscated, contains keywords related to legal documents and forms, which is likely a lure. The heuristic 'SE_CALLBACK_LURE' explicitly indicates a callback phishing or tech-support scam pattern, where the user is prompted to call a phone number. The ClamAV detection further confirms its malicious nature as 'Pdf.Phishing.TtraffRobotInstall'.

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://myallscent.com/uploads/1/3/0/3/130379326/somovixu-latepuviwar.pdf
    • https://tisetiluwogoti.weebly.com/uploads/1/3/0/4/130488699/47be9e.pdf
    • http://ctmeetingspace.com/uploads/1/3/0/5/130590778/1595821.pdf
    • http://nymica.com/uploads/1/3/0/5/130588532/dedimojagoviluji.pdf
    • http://twoklassens.com/uploads/1/3/0/4/130488217/76f5d278b.pdf
    • http://cuskga.com/uploads/1/3/0/6/130604309/af50be.pdf
    • http://elitetalentgroup.org/uploads/1/3/0/4/130488701/guzujobogodimubunaw.pdf
    • http://mimivuv.tomrich.ru/uploads/2020/01/27/vunuwonenatufuv.pdf
    • https://pevajivira.weebly.com/uploads/1/3/0/4/130435780/1261220.pdf
    • http://kerekul.oplata-trikolor.online/uploads/2020/01/29/sijir.pdf
    • http://thehappygirlstore.com/uploads/1/3/0/5/130589114/130589114.html#contractor+affidavit+form+florida

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001264.bin
5d5bceb04dce8043d1e2da158ff25d2f8f691d393dcfd19b53f4d5bb19f123d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1264 8664 bytes

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