Malicious PDF — malware analysis report

Static analysis result for SHA-256 41898b4ead3a3efe…

MALICIOUS

PDF

54.8 KB Authoring application: Solid Converter PDF First seen: 2020-09-24
MD5: 595c6f6183ccedfdd5ec3e3a35df8b44 SHA-1: dad7911b3da049da50089da0aa72569ab5379bb0 SHA-256: 41898b4ead3a3efe926a5ea040747b3733a9391454d7ee3983dbe0be4fdc330b
152 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection purpose. The embedded URLs are likely part of this link farm, aiming to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://stephan-orth.net/uploads/1/3/0/5/130551390/7721126.pdf In PDF document text
    • http://mobiletierphysiotherapie.com/uploads/1/3/0/3/130313049/4ee1dad9e.pdfIn PDF document text
    • http://meinamovie.com/uploads/1/3/0/5/130550981/sorefikexoza_mivefakiwufewam.pdfIn PDF document text
    • http://slowventures.net/uploads/1/3/0/7/130775001/kesalajidozigadi.pdfIn PDF document text
    • http://jjhomez.com/uploads/1/3/0/4/130488694/9404497.pdfIn PDF document text
    • http://goodguysfilm.com/uploads/1/3/0/7/130739221/nolugawidafoxuse.pdfIn PDF document text
    • http://vizionsolutionsltd.com/uploads/1/3/0/9/130969429/5302060.pdfIn PDF document text
    • http://islandscast.com/uploads/1/3/0/4/130476738/9ceea690.pdfIn PDF document text
    • http://hawthorneblossoms.com/uploads/1/3/0/7/130776687/813449.pdfIn PDF document text
    • http://maagtech.com/uploads/1/3/0/4/130492229/346b677fa83d.pdfIn PDF document text
    • http://actofdwelling.org/uploads/1/3/0/3/130323914/moxawoduzuju-kinobema.pdfIn PDF document text
    • http://74-123-73-7.mgwnet.com/uploads/1/3/0/5/130588319/130588319.html#sheikh+ahmed+deedat+crucifixion+or+crucifictionIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00005061.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5061 27364 bytes
SHA-256: 2aa8dedf81cfd803e70ac1d9fec677cb14ae883763363add1509544d52c23f44
font_01_sfnt_off00008005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8005 8240 bytes
SHA-256: 51ffdcb7403e534336b829e18914b627604d80024142ea5e73b3517171210a8c

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