Malicious PDF — malware analysis report

Static analysis result for SHA-256 92afd4c9a7430d6d…

MALICIOUS

PDF

48.9 KB Authoring application: Soda PDF
MD5: 9311a47f1516ee336067b56609b83c6c SHA-1: 33f5ddeba4433d813cc1ec586f052203c093f38e SHA-256: 92afd4c9a7430d6d172a329cee449e0742b47a8f355933f2dce7f71a0cd02158
120 Risk Score

Malware Insights

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

The PDF document was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a PDF_SEO_LINK_FARM heuristic firing, indicating the presence of numerous external links within the document. The document body text, though partially obfuscated, suggests a lure related to the 'Philippine electrical code part 2 pdf'. The primary attack pattern involves directing users to download other PDF files via these embedded links, which is a common phishing and malware distribution technique.

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 https://zusabozazi.weebly.com/uploads/1/3/0/5/130590092/fe9991cc02c8732.pdf
    • http://alumni-chiropractic.com/uploads/1/3/0/6/130620556/zapova.pdf
    • http://thehappylifeacademy.com/uploads/1/3/0/4/130436343/de43c3070.pdf
    • https://fozosiperagi.weebly.com/uploads/1/3/0/4/130483649/8578134.pdf
    • http://artgallerygcc.weebly.com/uploads/1/3/0/5/130539678/fidoradijunudon_nazur_mezuleduxujuto.pdf
    • http://laschober.net/uploads/1/3/0/2/130288364/mowejibig-womidawefegul-vevusifafudoba.pdf
    • http://newtrierexhibitions.weebly.com/uploads/1/3/0/5/130550921/jopixoxevuputogixal.pdf
    • http://kylewidner.com/uploads/1/3/0/3/130313613/1057701.pdf
    • http://djspizza1.com/uploads/1/3/0/5/130551202/130551202.html#philippine+electrical+code+part+2+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001221.bin
67f4458973a37637be1a3af54a68bb955607ae9058d2c88e966b43ed24425186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1221 8352 bytes
font_01_sfnt_off00006adf.bin
062abeeb0630068c9ebda4cd69880ba7d22c023ef851e82e77d1a768bfa0705b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADF 17648 bytes
font_02_sfnt_off0000849b.bin
1b3f82cd74c5b6671cc0c0d4a6c7877b74bb57ca469b2a61ef541918e41af838		 pdf-font-stream PDF embedded font (sfnt) at offset 0x849B 2652 bytes

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