Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0aff52e6d2191d0…

MALICIOUS

PDF

41.4 KB Authoring application: Pdftk First seen: 2020-09-07
MD5: 8de3e1b7e269b9f5281c329371558ac4 SHA-1: 01f453da4d2874c8084c42b2dc7b29ad7f3c3290 SHA-256: c0aff52e6d2191d097b8e232106f4d033286143351d9575e4e719c865786e122
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. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body, though heavily obfuscated, contains URLs that are consistent with the link farm heuristic, suggesting the primary purpose is to redirect users to potentially malicious content hosted on these domains.

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://cfomtg.com/uploads/1/3/0/5/130588931/13fdcdbb9a6b005.pdf In PDF document text
    • http://losigoluz.totachi-fs.com/uploads/2020/01/27/jujina_kabaxutonev.pdfIn PDF document text
    • http://monikamdesign.net/uploads/1/3/0/6/130639913/41e8d14623e325.pdfIn PDF document text
    • http://bradeaton.net/uploads/1/3/0/5/130589297/2609181.pdfIn PDF document text
    • http://nutgraf.ca/uploads/1/3/0/6/130621276/titebikitibolepoju.pdfIn PDF document text
    • http://mygreenpoint.ru/uploads/2020/01/27/3108480.pdfIn PDF document text
    • http://shadyblueamstaffs.com/uploads/1/3/0/5/130551303/tixoturuvilax-dirupafovi-sukalenaku-fumojuvo.pdfIn PDF document text
    • http://culbertsonandcompany.com/uploads/1/3/0/5/130589420/xebusuxov-zaposafinekipiw.pdfIn PDF document text
    • http://photobooth.lakerentertainment.com/uploads/1/3/0/6/130620973/6460343.pdfIn PDF document text
    • https://dupefovidux.weebly.com/uploads/1/3/0/5/130543437/6856705.pdfIn PDF document text
    • http://presidentsmotors.com/uploads/1/3/0/4/130490687/wawaguvutobu.pdfIn PDF document text
    • https://riduroral.weebly.com/uploads/1/3/0/4/130488165/5c136.pdfIn PDF document text
    • http://accsane.com/uploads/1/3/0/4/130493893/2445267.pdfIn PDF document text
    • http://psychedelicsmadnessawakening.com/uploads/1/3/0/4/130476598/laridu_rokowavaruja.pdfIn PDF document text
    • https://vagosebadifez.weebly.com/uploads/1/3/0/3/130379227/5078505.pdfIn PDF document text
    • http://berberthemes.com/uploads/1/3/0/5/130551181/7087172.pdfIn PDF document text
    • http://russimavia.ru/uploads/2020/01/28/tonado-dezipixi.pdfIn PDF document text
    • http://michellewhyman.com/uploads/1/3/0/5/130542972/9f653c8175.pdfIn PDF document text
    • http://consultorianora.com/uploads/1/3/0/6/130604028/noniw.pdfIn PDF document text
    • http://pas-safe.com/uploads/2020/01/27/7640451.pdfIn PDF document text
    • http://chinhxacmuctieu.com/uploads/1/3/0/3/130379362/8414658.pdfIn PDF document text
    • http://stevecoltrain.com/uploads/1/3/0/3/130313088/930144da7d2007.pdfIn PDF document text
    • http://mmakhaolak.com/uploads/1/3/0/5/130588601/mokawamimosufixa.pdfIn PDF document text
    • http://misssoutheastpageantry.us/uploads/1/3/0/6/130621402/130621402.html#facebook+ads+cheat+sheet+2019+pdfIn PDF document text
🗂 Part of campaign: berberthemes.com 3 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BB 7924 bytes
SHA-256: ddbd8136dbb64e1f5b50e307cfa771f9c2acf1dd2d9e48195a6cc530e376126b