Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2251373b79e6c9f…

MALICIOUS

PDF

43.0 KB Authoring application: LibreOffice Draw
MD5: 2efbc4126e6aed2c11c518178075929a SHA-1: e78e9303329517d0e07ddaecff9fccaa1f40fd06 SHA-256: d2251373b79e6c9fa8d2ab3bcd6a45001fbaff842916aabf88ff56f12e3f5212
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to distribute a large volume of content, potentially malicious. The ClamAV detection and ML classifier further support its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, and the document body was heavily truncated and unreadable.

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://tasteofdustbk.com/uploads/1/3/0/8/130814129/8137736.pdf
    • http://morganhomeswny.com/uploads/1/3/0/2/130289719/livutijadotota.pdf
    • http://jllcapitalmarkets701e22nd.com/uploads/1/3/0/4/130436173/1debe7db13415b.pdf
    • http://solectwokamienica.pl/uploads/1/3/0/4/130483322/bafewesafulotobin.pdf
    • http://arthurdogsontodd.com/uploads/1/3/0/5/130541285/mabegewerot_galujavovegi.pdf
    • http://machin-machine.org/uploads/1/3/0/5/130588550/6764997.pdf
    • http://christiannewsstand.com/uploads/1/3/0/3/130313403/xadatimesaxedipijor.pdf
    • http://mail.insmarket.com/uploads/1/3/0/3/130324011/kumerobemujew.pdf
    • http://animeconcarne.com/uploads/1/3/0/6/130603783/b8b4341ab08f.pdf
    • http://tripvector.org/uploads/1/3/0/2/130273790/gegokinopujonupipesi.pdf
    • http://hostmaster.stwilfrids.org/uploads/1/3/0/2/130289733/3260548.pdf
    • http://herbtimeplus.com/uploads/1/3/0/6/130604766/fuwuvupemo-mopidalusofojit-tuvexo.pdf
    • http://hostmaster.supercleanqueens.com/uploads/1/3/0/4/130476506/9039876.pdf
    • http://mshroff.net/uploads/1/3/0/6/130605111/5141843.pdf
    • http://anchorgsglobal.com/uploads/1/3/0/9/130969082/c49b2.pdf
    • http://ewk8b8.salon225.com/uploads/1/3/0/7/130738928/130738928.html#radiation+pneumonitis+chest+radiology
    • http://tripvector.org

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003693.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3693 16036 bytes
font_01_sfnt_off00004dad.bin
85213093c4193e3b31d56e27db473ee90c8c7b5ea342758c971fcf5e4ab4e653		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAD 7888 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.