Malicious PDF — malware analysis report

Static analysis result for SHA-256 a98c13ae6b1cc0b5…

MALICIOUS

PDF

54.0 KB Authoring application: Poppler-utils First seen: 2020-09-24
MD5: 4e673e75fb5371658b357429ec2c3a95 SHA-1: 41aec2881c71022755f5f0a8e803ff53dc9e8f06 SHA-256: a98c13ae6b1cc0b50d6da61ba4594e359901eb0c62289d31661fbc4296e39a1b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body, though partially corrupted, also contains several of these URLs, reinforcing the attack pattern. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://highshoppingnetwork.com/uploads/1/3/0/5/130545493/bavekonenobone.pdf In PDF document text
    • http://ninktat.com/uploads/1/3/0/2/130272977/kuwitamefixapa.pdfIn PDF document text
    • http://vegixu.paradise-hotel.ru/uploads/2020/01/28/lumedebajo.pdfIn PDF document text
    • http://vocescuola.org/uploads/1/3/0/3/130313634/riselewimofolu_sudamifobud.pdfIn PDF document text
    • http://kcdermodywriter.com/uploads/1/3/0/2/130270837/zexozo.pdfIn PDF document text
    • http://designer-parties.com/uploads/1/3/0/3/130323566/875d33721.pdfIn PDF document text
    • http://jupajaba.la-mebel-modern.ru/uploads/2020/01/28/xevunavokokozoroj.pdfIn PDF document text
    • http://mycountrybowtique.com/uploads/1/3/0/6/130620356/7f911ba.pdfIn PDF document text
    • http://connectionsonthebay.com/uploads/1/3/0/6/130639861/538ff7f51b36f2.pdfIn PDF document text
    • http://neokundalini.org/uploads/1/3/0/2/130270936/130270936.html#ao3400+mosfet+datasheetIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00007a91.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7A91 12856 bytes
SHA-256: 3d00aff4ba7349601f24196a0e0151e63696d774b8e644a280dae993598980fe
font_00_sfnt_off00001271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1271 9728 bytes
SHA-256: 290c0b73773ab0e20b5d3b1f71f87b9a4bf8aa94b67b9b51eadd79c4e588b5f1
font_01_sfnt_off000059a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A5 3224 bytes
SHA-256: b1696ce18c62e2f68d7f1b8eb7188f3f33e47d1035068f0d0bc1b564e5eb92cd
font_02_sfnt_off000063a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A6 16564 bytes
SHA-256: 5108bc93df2d1ebd99c0d3b52b529ce6333c6064612c7e591a9891e0062bcf93

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