Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1832b4944c354d5…

MALICIOUS

PDF

63.2 KB Authoring application: QPDF
MD5: 6e0e0d9d68a3b6b67f87c1beeef22a40 SHA-1: 8fdbf3844758399b9ed06254a25a262da03dc3e5 SHA-256: a1832b4944c354d5381d8c506294487f319bde8d9ee5aab35a4da01597c048c4
120 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous external URLs. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. The embedded URLs are likely used to redirect users to phishing sites or download further malicious content. No scripts were extracted from this sample.

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://material-ss.com/uploads/1/3/0/4/130476294/gusilolak-foninoxaxu.pdf
    • http://www.voicewithval.com/uploads/1/3/0/7/130775758/5d9d21ed60ee53.pdf
    • http://newlifedestination.com/uploads/1/3/0/5/130544001/7799051.pdf
    • http://roomshaker.net/uploads/1/3/0/7/130738875/legamuferajejefodiw.pdf
    • http://objectrelationsrecords.com/uploads/1/3/0/7/130775474/fijalidewal.pdf
    • http://www.eftshiatsu.com/uploads/1/3/0/8/130813860/c7485d89e9.pdf
    • http://freestyleseniors.com/uploads/1/3/0/5/130539897/dagiso.pdf
    • http://aroundthehousehandymanservices.com/uploads/1/3/0/3/130313000/8658195.pdf
    • http://mrkolani.net/uploads/1/3/0/7/130740502/wazejemidabobaz.pdf
    • http://languageartslearningtree.com/uploads/1/3/0/5/130588548/jevozipaxuko-vikejilij-sedoxifagokowem.pdf
    • http://zhongrenchou.xyz/uploads/1/3/0/8/130813094/2239671.pdf
    • http://www.chewysuz.com/uploads/1/3/0/7/130776113/dofemebetutixen_vagopekolinako.pdf
    • http://www.summitresumes.net/uploads/1/3/0/2/130271017/4213188.pdf
    • http://keenehudsonheadshots.com/uploads/1/3/0/5/130539114/sulubebanujepot.pdf
    • http://vpgrou.brdge.org/uploads/1/3/0/2/130289431/130289431.html#puerperal+pyrexia+causes

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001428.bin
9371bbb44737b1ffbc4d45b46bf799ff107397036eb68c061c734528603e0978		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1428 8652 bytes

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