Malicious PDF — malware analysis report

Static analysis result for SHA-256 13232a741bf0892c…

MALICIOUS

PDF

40.2 KB Authoring application: LibreOffice
MD5: e55af88306a833858f5117076abcfb5e SHA-1: c130e0962051cea69b1da5fa1da675872dabb35b SHA-256: 13232a741bf0892c9923ce9fabb20656f82a31d59905e7162501dab00d75a671
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a tactic to manipulate search engine results or redirect users to potentially malicious content. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://marianoelide.com/uploads/1/3/0/6/130622080/kawerugirugivex.pdf
    • http://westshoreprojects.com/uploads/1/3/0/6/130605065/18f22605c4.pdf
    • http://adventuristatravel.org/uploads/1/3/0/8/130874051/5744932.pdf
    • http://pintsizechef.com/uploads/1/3/0/4/130476744/8eb7ac1077775.pdf
    • http://second-childhood.com/uploads/1/3/0/6/130604034/warolom.pdf
    • http://crosbyirontonmusic.org/uploads/1/3/0/6/130621324/7601611.pdf
    • http://freeseomagic.com/uploads/1/3/0/3/130323738/lomona.pdf
    • http://fut.party/uploads/1/3/0/4/130483191/bowimameguxin-gimododadusow-worijotamiletep.pdf
    • http://rainfordvillage.co.uk/uploads/1/3/0/6/130639781/4929699cbf.pdf
    • http://car-gocarriers.com/uploads/1/3/0/2/130287976/64e42337d289.pdf
    • http://basicyouthtraining.com/uploads/1/3/0/6/130604826/9718036.pdf
    • http://locksmithwaukesha.com/uploads/1/3/0/5/130588780/589702.pdf
    • http://mtg.blue/uploads/1/3/0/6/130640123/posepabo.pdf
    • http://costaricaherbalmedicine.com/uploads/1/3/0/6/130603818/95199f8464d0.pdf
    • http://reboundat.com/uploads/1/3/0/7/130776632/130776632.html#guide+to+iceland+ring+road+map

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004111.bin
380cf7601acb74145c702f42f21fbc41fa6d9fe0b20bdd1b3c472d994f1af1e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4111 9188 bytes

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