Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f5d0dd40bcfe0dd…

MALICIOUS

PDF

153.4 KB Created: 2021-02-02 08:07:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 461a7b1aad8d9136f734005a4adbf104 SHA-1: 26103d7b31f4a4ba3583a4de77f4068b78a6e7bb SHA-256: 2f5d0dd40bcfe0dd7b9f1661b2dbf3c8a4c6acd32c5fac7e7322693d2729b58f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://baarspo.ru/aws?utm_term=new+tamil+christian+songs+2018+free PDF link annotation
    • http://xogabimodefage.iblogger.org/liumy_oscilloscope_multimeter_manual.pdfIn PDF document text
    • http://tonalemeketav.66ghz.com/letter_a-_z_tracing_worksheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465709/normal_5fe25c9d7ba0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480182/normal_5ffdd51b01a6f.pdfIn PDF document text
    • https://simokatojerosu.weebly.com/uploads/1/3/0/8/130874490/9924799.pdfIn PDF document text
    • https://jalesebexiw.weebly.com/uploads/1/3/0/7/130739560/880b394df372.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421058/normal_5ff66e8d3f47d.pdfIn PDF document text
    • https://mufewikusa.weebly.com/uploads/1/3/4/0/134042586/dezogoxugodokoxizoti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379380/normal_5fdbdba941540.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jusuberu/46198224454.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/6723320866.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/bibbulmun_track_maps.pdfIn PDF document text
    • http://luxotenudiwuzu.rf.gd/aswamedham_telugu_movie_audio_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/media_player_program_in_android_studio.pdfIn PDF document text
    • http://notaruk.rf.gd/84169417738.pdfIn PDF document text
    • http://fipiwafupogo.epizy.com/lozosasodupepipan.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00021e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21E98 5876 bytes
SHA-256: ece82f1bbb258681bd5b8149d58164170b6a02e4358709c9e4f2126fb2b972ee
font_01_sfnt_off00023287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23287 11372 bytes
SHA-256: 04fda1e24d08c7bd7a2ea3471072cee135546dea4521ac8f7227ffa00b5bf377