Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c0c541929263e3…

MALICIOUS

PDF

124.6 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-07
MD5: 69e514dac563010af0951bb37fb0a0f3 SHA-1: 672436b7bf5b26c861ab6f3da4f3c31914799db0 SHA-256: 26c0c541929263e3e205e49e2cd3794206958607b553df75f650e2d6db9dc85d
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, pointing to a potential download or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://klaspinfo.com/uploads/1/3/0/3/130323471/f3ca4bc.pdf In PDF document text
    • http://tel.lechenienarkomanii-blagoveshhensk.ru/uploads/2020/01/27/guzarepilafako_dawulifajuw_gisedelixiwe_jonafimetadozez.pdfIn PDF document text
    • http://werajidinu.agicole-acces.com/uploads/2020/01/29/4061037.pdfIn PDF document text
    • http://ricksmobilerv.com/uploads/1/3/0/2/130289603/dc2c67e241c548.pdfIn PDF document text
    • http://managewisconsin.com/uploads/1/3/0/5/130588216/rubalogagozu.pdfIn PDF document text
    • http://jowetofobo.suot.pro/uploads/2020/01/28/xiradolunivi.pdfIn PDF document text
    • http://nonigexoxe.multimodal.pro/uploads/2020/01/27/gorilepe-vekipo.pdfIn PDF document text
    • https://zarapugu.weebly.com/uploads/1/3/0/2/130289222/xezunawi.pdfIn PDF document text
    • https://birumeragam.weebly.com/uploads/1/3/0/5/130588187/6e388a0c34fe9a7.pdfIn PDF document text
    • http://thefantasyparis.com/uploads/1/3/0/3/130312985/jirumexatin.pdfIn PDF document text
    • http://stellamarisenvironmentalresearch.com/uploads/1/3/0/2/130288338/f170f096b67d0bf.pdfIn PDF document text
    • http://bidutifaso.hercareer.pro/uploads/2020/01/29/3433008.pdfIn PDF document text
    • http://adamholtindustries.com/uploads/1/3/0/5/130588943/c60f2b924d5.pdfIn PDF document text
    • http://tdorestoran.ru/uploads/2020/01/29/7127506.pdfIn PDF document text
    • http://puposol.moo.moscow/uploads/2020/01/28/4334357.pdfIn PDF document text
    • http://thebestpillowever.com/uploads/1/3/0/2/130291589/9afd65d152f6a6.pdfIn PDF document text
    • https://nuguruti.weebly.com/uploads/1/3/0/4/130488812/wuxelew.pdfIn PDF document text
    • http://mobileonegaming.com/uploads/1/3/0/5/130588714/130588714.html#advanced+language+practice+3rd+edition+answer+keyIn PDF document text
🗂 Part of campaign: agicole-acces.com 11 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000168d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168D 9000 bytes
SHA-256: d41828eb478bbf72b291c800431bc4a35a24ff3162a430b9c62822102aecba25