Malicious PDF — malware analysis report

Static analysis result for SHA-256 48bd294178155508…

MALICIOUS

PDF

45.7 KB Authoring application: Nitro PDF First seen: 2020-09-24
MD5: 5add963057ee0ad852f8b657f619cb2f SHA-1: fc9ec497112b6690cfa96358bd24856332d71e8b SHA-256: 48bd2941781555086ef8a51f60db320c995f49874cc63af956c22847231964ae
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO poisoning attack, aiming to redirect users to potentially malicious content. The ClamAV detection further supports its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bestbroadbandsupplier2019.co.uk/uploads/1/3/0/5/130538946/8101364.pdf In PDF document text
    • http://smallbusinessloanfunding.com/uploads/1/3/0/7/130776725/nowezog-zevozip.pdfIn PDF document text
    • http://buve.toowibook.com/uploads/2020/01/28/6074683.pdfIn PDF document text
    • https://naxumumi.weebly.com/uploads/1/3/0/3/130323659/mipapasusiwijag.pdfIn PDF document text
    • http://nexoclean.com/uploads/1/3/0/6/130639655/guterobezuv_gexuxuvimu_luluvu.pdfIn PDF document text
    • http://duzepoxok.formacion-psicosocial.com/uploads/2020/01/28/7e6a77e280.pdfIn PDF document text
    • http://branchlutheranschoolshaiti.com/uploads/1/3/0/5/130550769/b9473da8.pdfIn PDF document text
    • http://learnonlinefast.com/uploads/1/3/0/6/130605373/d6050eee0577.pdfIn PDF document text
    • http://mykwalk.com/uploads/1/3/0/6/130639269/sasime.pdfIn PDF document text
    • http://ittohtrid.com/uploads/1/3/0/6/130639462/8e5647f2efd7494.pdfIn PDF document text
    • http://misbailes.com/uploads/1/3/0/4/130476481/130476481.html#dragon+ball+z+pelicula+androide+13+completaIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1322 9432 bytes
SHA-256: 3f62a6a1dfcdc12184b19eb1f57e5a93839d813e8bbb185c54c0356377f9b5c5
font_01_sfnt_off000055ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55EA 16428 bytes
SHA-256: 6f56f1b6b126280e2ed38b5128b719fc01435164b91cb966c7471e28ce7a3186
font_02_sfnt_off00006bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCA 6528 bytes
SHA-256: 456c0d92d26809f48a6115fda2f67c0d6379ced9d424fee4e93528ffa63ae5f7

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