Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e49d9fd9bf52e7…

MALICIOUS

PDF

35.7 KB Authoring application: pstoedit
MD5: 6b9652b2e91360d7716fbfedacdf6653 SHA-1: ddacac56fc61682b84b3a34bb7071378c3ca42a2 SHA-256: d2e49d9fd9bf52e7980c7a005acae752703561ba5fb95200964645d2a54cbe32
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall suggests a phishing or traffic redirection intent. The document body mentions 'Asvab study guide online navy' which is likely a lure to encourage users to click on the embedded links.

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://myfinlandlimerence.com/uploads/1/3/0/3/130313122/kanejopuruw.pdf
    • http://middleclassmusings.com/uploads/1/3/0/4/130491757/e481ec71cc.pdf
    • https://walirotapolu.weebly.com/uploads/1/3/0/4/130483305/zizidesexe.pdf
    • http://jezevajeve.op2r.icu/uploads/2020/01/28/pixog-fatozovaxilon.pdf
    • http://fiv.funduk.me/uploads/2020/01/28/faxufiw_lajuwelinukan_titiferugalowe.pdf
    • http://napashuttlelimo.com/uploads/1/3/0/6/130639400/fodesuwu.pdf
    • https://fiwizegupa.weebly.com/uploads/1/3/0/4/130436130/205dd951e6f.pdf
    • http://neokundalini.org/uploads/1/3/0/5/130589126/130589126.html#asvab+study+guide+online+navy

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000114d.bin
42f417258d9fa2bcb70f60593e9c187960a798195dd70d701984743247bbc1d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114D 8188 bytes

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