Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f7eafeb563ed002…

MALICIOUS

PDF

46.0 KB Authoring application: OpenOffice.org
MD5: 86f114b77dd14c104b58fdccdfad6f8f SHA-1: b84232b7efdf862a15f640c3fa3753847970c3f9 SHA-256: 1f7eafeb563ed00240f0fe22334e0d4ee7ee97aab348a17911b43bbc36beb19a
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 PDF documents, a technique commonly used for SEO poisoning or phishing campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, and the document body contained mostly garbled text, making it difficult to ascertain a specific lure.

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://hohenleitner.org/uploads/1/3/0/7/130775934/kowini.pdf
    • http://reboundat.com/uploads/1/3/0/8/130814121/wuden.pdf
    • http://narskuuttelu.com/uploads/1/3/0/7/130739269/sonigejafini.pdf
    • http://myjourneyracing.com/uploads/1/3/0/6/130620431/xoxukadisoropuwuve.pdf
    • http://mhi-hoa.com/uploads/1/3/0/5/130588712/6292076.pdf
    • http://flatfeemlsre.com/uploads/1/3/0/4/130435649/xupawapeda.pdf
    • http://tutorloft.com/uploads/1/3/0/6/130639517/064aeffc5.pdf
    • http://moveonidiomes.com/uploads/1/3/0/4/130476572/rixejodi.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/2/130288307/130288307.html#la+vie+en+rose+the+ukulele+teacher

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003aea.bin
8ee88ee50c92ba8877d2cea88ffd0dbf25bef2b2dbf7c01b1990d59ad7c68fca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AEA 5036 bytes
font_01_sfnt_off00004fda.bin
dc11b196cab5c78274b122f2e703393d18a9944077ce249d1a5969da85c6674b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FDA 8544 bytes

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