Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df14f7d44e92f9e…

MALICIOUS

PDF

47.2 KB Authoring application: Pdftk
MD5: 5f5b7f5c4eb50242f5fa7c19634218f3 SHA-1: 70d50735c3719de637b5e4f47acabf8110fd412f SHA-256: 6df14f7d44e92f9eda9f44517d223e63567bf053512031b4128e3cfb427a4d94
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including a critical alert for a large number of external PDF links, indicating a link farm. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing or redirection tool. The embedded URLs are likely used to redirect users to malicious sites, potentially for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://cheryltoh.com/uploads/1/3/0/6/130639246/dab0c3ef75e.pdf
    • http://magnoliafarms.us/uploads/1/3/0/6/130605012/b81ca4.pdf
    • http://baltazarsautos.com/uploads/1/3/0/3/130313153/9946705.pdf
    • http://louisvillemoldsolutions.com/uploads/1/3/0/2/130272482/pupotazix_rudexuwo_wewekuj_libetodolo.pdf
    • http://nangrayphotography.com/uploads/1/3/0/5/130547142/rosakulumijemoni.pdf
    • http://ablesonslabradoodles.com/uploads/1/3/0/4/130483990/2caa1.pdf
    • http://mylabeau.com/uploads/1/3/0/6/130620585/pamefaviw-notafadoripimo-pajaxapepivat-baxivenewusuw.pdf
    • http://0106shop05.fun/uploads/2020/01/28/842ddb.pdf
    • http://kurthindustries.com/uploads/1/3/0/5/130551051/0d666e5c9cb.pdf
    • http://pefura.cityglush12.icu/uploads/2020/01/28/89b55ef75.pdf
    • http://musebeatmedia.com/uploads/1/3/0/5/130545484/fofugobegulem.pdf
    • http://midcitycarriages.org/uploads/1/3/0/2/130272850/70419aba10eed9.pdf
    • http://owenmuirmd.com/uploads/1/3/0/4/130476074/7f483178e162.pdf
    • http://nebuchadnezar.com/uploads/1/3/0/6/130604287/cdef8ef228cd.pdf
    • http://knowtinysecrets.com/uploads/1/3/0/2/130270742/jirudulavexemeridi.pdf
    • http://lexexujul.rkmw.ru/uploads/2020/01/29/lotowebezadanun-dejogu-lugosorazagem.pdf
    • http://alteredproductionsinstitute.org/uploads/1/3/0/4/130477351/0295ad.pdf
    • http://vidracariaartvidros.site/uploads/2020/01/29/bazidewiku.pdf
    • http://zuwakus.nsmagix.com/uploads/2020/01/27/jarinojelor.pdf
    • http://blackmarksproduction.com/uploads/1/3/0/5/130539774/vinexulenatukolotoja.pdf
    • http://myptresource.com/uploads/1/3/0/2/130289363/a98e088c715765.pdf
    • http://mengdid.com/uploads/1/3/0/4/130436028/pamekitim.pdf
    • http://themathbutler.com/uploads/1/3/0/6/130639215/molarawaxo.pdf
    • http://5pointauto.com/uploads/1/3/0/3/130323962/130323962.html#burt+k.+scanlan

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001789.bin
de96795cd86154aecb95399806728ea27252af4c18fe4fb42748d184b5eba115		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1789 9908 bytes

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