Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded32e8d4b6f4c78…

MALICIOUS

PDF

33.6 KB Authoring application: OpenOffice Draw First seen: 2020-09-24
MD5: 6d5817237e40e77799927aaa28a4b952 SHA-1: 3fd3c8ee4a624fa0181c7f94cdb87d11c74eef8a SHA-256: ded32e8d4b6f4c78aee563db12311dfe89d81fdaeae00d0bc1c8249271db0a21
192 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded URLs, indicating a link farm designed to redirect users. The document body contains a mix of readable text and obfuscated content, including a repetition of the embedded URLs, reinforcing the phishing or redirection intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://katsheahealingarts.net/uploads/1/3/0/6/130620687/f914f5475.pdf In PDF document text
    • http://mikehenneberger.com/uploads/1/3/0/7/130740060/125f58c91b1.pdfIn PDF document text
    • http://wasando.com/uploads/1/3/0/7/130739210/mojetol_kiwuf.pdfIn PDF document text
    • http://bootstrappinbetty.com/uploads/1/3/0/7/130775606/fadagopurafir.pdfIn PDF document text
    • http://sixismusic.net/uploads/1/3/0/6/130604269/nuxuvijosared.pdfIn PDF document text
    • http://birchlittleskincare.com/uploads/1/3/0/7/130739991/miferijogajuva-derewovujakov-nawiras.pdfIn PDF document text
    • http://hoy.bz/uploads/1/3/0/5/130588644/993436.pdfIn PDF document text
    • http://choosesani.com/uploads/1/3/0/6/130605521/dunaxodebid.pdfIn PDF document text
    • http://www.gateways2peace.com/uploads/1/3/0/6/130620719/32959b24.pdfIn PDF document text
    • http://tandnlandscapes.com/uploads/1/3/0/6/130604918/fibiviraveza_xomun_lavifuzagamex_witujelatifu.pdfIn PDF document text
    • http://sbtkidz.com/uploads/1/3/0/2/130291696/9346d6f5f5f.pdfIn PDF document text
    • http://webdisk.aseronnyj.com/uploads/1/3/0/7/130775489/3836896.pdfIn PDF document text
    • http://mercedregionalvision.com/uploads/1/3/0/2/130272428/gufawaxonap-rubavifevogeka.pdfIn PDF document text
    • http://acousticfloydtribute.com/uploads/1/3/0/2/130289292/topomi.pdfIn PDF document text
    • http://623hwy71.com/uploads/1/3/0/6/130604604/f684fb8673284b1.pdfIn PDF document text
    • http://navkettanagriculture.com/uploads/1/3/0/4/130475921/222b367a10ffdb.pdfIn PDF document text
    • http://dripexperience.com/uploads/1/3/0/5/130590622/7918206.pdfIn PDF document text
    • http://foxpittman.com/uploads/1/3/0/6/130604210/cf25ace0d0d0af5.pdfIn PDF document text
    • http://www.cozyhedgehogscanada.ca/uploads/1/3/0/7/130739517/1885552.pdfIn PDF document text
    • http://www.chesapeaketreecompany.com/uploads/1/3/0/6/130603772/bebabapuvowezigo.pdfIn PDF document text
    • http://magnoliastravelandtouradventures.voyagerwebsites.com/uploads/1/3/0/6/130639453/130639453.html#present+simple+exercises+6o+primaria+pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2247 8712 bytes
SHA-256: 3455bc47ea7f97b12007eaea89dd604360e75f9efc3d562d629a1703d4ebaff9