Malicious PDF — malware analysis report

Static analysis result for SHA-256 94143e0c591fb920…

MALICIOUS

PDF

35.6 KB Authoring application: Karbon First seen: 2020-09-24
MD5: 1f5419f6fabcdda35786a94632342b52 SHA-1: b1927763e3e0f14dbca34767e1afe18249e06824 SHA-256: 94143e0c591fb92097677305f6834cab70a4f36f542997aa18b36e31a6fba7f1
192 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, and exhibits a PDF_SEO_LINK_FARM heuristic. This indicates the document is likely part of a phishing or SEO spam campaign, leveraging numerous external links to potentially malicious PDF files. The embedded URLs suggest a distribution mechanism for further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://beachmedicalservices.com/uploads/1/3/0/3/130312961/kifamojeze.pdf In PDF document text
    • http://rozkalnikina.weebly.com/uploads/1/3/0/6/130604273/6074545.pdfIn PDF document text
    • http://vot.q-rp.ru/uploads/2020/01/27/e59de5f.pdfIn PDF document text
    • http://bkcyouth.org/uploads/1/3/0/4/130436402/15b91.pdfIn PDF document text
    • http://zanove.shoop-goo.info/uploads/2020/01/29/vulodunemulu-timuxix-jezebed-xaxibajegij.pdfIn PDF document text
    • http://kivon.kinotani.icu/uploads/2020/01/28/lunisipumab-vodizavifunovaw.pdfIn PDF document text
    • http://shnhome.com/uploads/1/3/0/4/130476214/gawimolate.pdfIn PDF document text
    • http://connexionadr.com/uploads/1/3/0/4/130483552/145462df889b98.pdfIn PDF document text
    • http://nemozudona.jnbusiness.services/uploads/2020/01/29/446931.pdfIn PDF document text
    • http://ompeacelove.com/uploads/1/3/0/6/130620737/xafememufozu.pdfIn PDF document text
    • http://pdazip.ru/uploads/2020/01/27/0ea2e26ff0.pdfIn PDF document text
    • http://mrcrosbyswebsite.com/uploads/1/3/0/3/130323811/70d919bde51.pdfIn PDF document text
    • http://antiviruseprotectserviceonline.site/uploads/1/3/0/2/130272325/130272325.html#protect+sheet+in+excel+onlineIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BF 7676 bytes
SHA-256: 02907090444895d7b3a8f4ac4e9967e6ddd25c2682e0e7ed6e5cd4f3a899486c

Open this report in the interactive analyzer, or submit your own file for analysis.