Malicious PDF — malware analysis report

Static analysis result for SHA-256 59498eb0464cf6d4…

MALICIOUS

PDF

41.0 KB Authoring application: Poppler-utils First seen: 2020-09-24
MD5: 85af3f6a91d4e52616f0289b54504bb8 SHA-1: 4714fa592c1422bce6221bce18710b7448eb503b SHA-256: 59498eb0464cf6d417a5f40cd1d7d16d1dd8e7fae4e3074f18eeec773d76c299
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also flags this as a phishing-related threat. The embedded document body text is heavily obfuscated and does not provide clear intent, but the sheer volume of outbound links suggests a malicious purpose such as SEO spam or directing users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://rickmillscounseling.com/uploads/1/3/0/7/130739690/aebdbc07f909.pdf In PDF document text
    • http://arabellaboutiqueofnmb.com/uploads/1/3/0/7/130775034/dekasirapum.pdfIn PDF document text
    • http://sinewmusic.com/uploads/1/3/0/3/130313192/7062954.pdfIn PDF document text
    • http://tandemendorsed.com/uploads/1/3/0/5/130588360/kuviribixuwefisamon.pdfIn PDF document text
    • http://agilebreeding.com/uploads/1/3/0/5/130541765/1075501.pdfIn PDF document text
    • http://lifemoves20.com/uploads/1/3/0/6/130640102/gitewovofuga.pdfIn PDF document text
    • http://civlirightsreenactor.com/uploads/1/3/0/7/130775383/pakosofoxo-binozitut.pdfIn PDF document text
    • http://mylunarsign.com/uploads/1/3/0/6/130604049/c62cd47a198b3b7.pdfIn PDF document text
    • http://koinlando.com/uploads/1/3/0/2/130271159/vomegirarupavagesit.pdfIn PDF document text
    • http://www.mpmbowlny.com/uploads/1/3/0/4/130476043/zafaveno-beligosuvow-wigigazoneroxi-japim.pdfIn PDF document text
    • http://micsaklaw.com/uploads/1/3/0/6/130604408/somupuponojufa.pdfIn PDF document text
    • http://theatreinc.org.uk/uploads/1/3/0/3/130379098/1037b.pdfIn PDF document text
    • http://stayfitbedskirt.com/uploads/1/3/0/5/130547515/vesulijimamozobezidu.pdfIn PDF document text
    • http://zipfiber.net/uploads/1/3/0/6/130620348/a1a9d2cb45.pdfIn PDF document text
    • http://jtaginterface.net/uploads/1/3/0/6/130620265/6639262.pdfIn PDF document text
    • http://74-123-77-252.mgwnet.com/uploads/1/3/0/5/130543764/130543764.html#internship+cover+letter+exampleIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43DB 8584 bytes
SHA-256: 03c61025cb255a82b0bce078826c4f21d1e5cfa7cce64d54d1b5a4be24e0ff24