Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c6a04fe7f26a6b6…

MALICIOUS

PDF

33.7 KB Authoring application: SWFTools
MD5: 5f3eb4aed9d7bf83814d43fcbd4614c1 SHA-1: 361dd256dcb2bdaf5a413ef7038cf03e059abc10 SHA-256: 2c6a04fe7f26a6b6b3a7b86fd8a1cddc9ee53d83fcdf993ed6d2d66c29c2e5df
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a common technique for SEO poisoning or phishing campaigns. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The embedded document body text, though partially corrupted, mentions 'present perfect tense and present perfect continuous tense', suggesting a lure related to language learning or academic content, which is then used to mask the malicious links.

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://thetravelingtenniscoach.com/uploads/1/3/0/8/130814043/vunexu.pdf
    • http://chinasummercamp.org/uploads/1/3/0/3/130313203/7969725.pdf
    • http://cherubtour2010.com/uploads/1/3/0/4/130483322/sodidosuje-jisanoves.pdf
    • http://thechristinaleavenworth.com/uploads/1/3/0/6/130639410/d9fe3033d29c.pdf
    • http://dualwayvintage.com/uploads/1/3/0/6/130605167/tokogakotomarow.pdf
    • http://northwestpetscanning.com/uploads/1/3/0/7/130739449/zesatutun.pdf
    • http://www.jjjkinc.com/uploads/1/3/0/4/130476318/xanawesa_xoxasuwenagubop_rokovarewu.pdf
    • http://magneticexit.net/uploads/1/3/0/4/130483346/wuxon.pdf
    • http://36lat.com/uploads/1/3/0/7/130775497/nodosu.pdf
    • http://excelappstore.com/uploads/1/3/0/7/130739934/2570047.pdf
    • http://netoaterro.com/uploads/1/3/0/7/130739578/guvotuxoz.pdf
    • http://rspmadison.org/uploads/1/3/0/6/130620356/ef6decbdbb.pdf
    • http://c024lm.bdgct.com/uploads/1/3/0/6/130639767/130639767.html#difference+between+present+perfect+tense+and+present+perfect+continuous+tense

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bf4.bin
83c9ee419198c4f92d94c63b55a19148d6ec22101a7c6952ab52539fab8eacb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF4 7848 bytes

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