Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd70cdbdc83e2896…

MALICIOUS

PDF

50.6 KB Authoring application: Smallpdf Desktop
MD5: 74911a0e5640256ff671ce687b357426 SHA-1: bb6ddcc79a4f55961ee4a61508f42b27313ec6bc SHA-256: bd70cdbdc83e2896799117d55f7c9158218843e4ea154d7ac01f5389e41eb4e9
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, indicating a potential SEO manipulation or phishing campaign. The document body contains text related to cheat codes, which may serve as a lure to disguise the malicious intent of directing users to external PDF files.

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://roanokechoristers.com/uploads/1/3/0/6/130604777/c589c5192e772b.pdf
    • http://remade.info/uploads/1/3/0/5/130550925/wojekefezogog_xepapevuvobaw_defolaw_nazorijuluga.pdf
    • http://noreenhughes.com/uploads/1/3/0/5/130589460/xudulo.pdf
    • http://shnci.org/uploads/1/3/0/3/130313336/limedakanabu.pdf
    • http://sugarmommascookieco.com/uploads/1/3/0/6/130621447/9c40c2a4649.pdf
    • http://lluviaoutsourced.com/uploads/1/3/0/5/130538840/816544369a34.pdf
    • http://scimedart.com/uploads/1/3/0/6/130621362/botud.pdf
    • http://nybellhouse.com/uploads/1/3/0/5/130588834/222935c66cfd8.pdf
    • http://riversidecountyhistory.org/uploads/1/3/0/5/130538990/130538990.html#cheat+codes+for+gta+ps2+liberty+city+stories

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001106.bin
f55ee84c2bdfc1626e64e3d2360db67793c532d3045eb6d57aafc0f5a5af1d6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1106 8692 bytes

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