Malicious PDF — malware analysis report

Static analysis result for SHA-256 e808650770012bf2…

MALICIOUS

PDF

72.4 KB Created: 2021-02-18 10:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: a17a649968e40c8f137b45ef1bd985cb SHA-1: c2a6fbcf53d26eb79376a9f1a5cc573fd297e249 SHA-256: e808650770012bf2236b33ae3b95812081598bc33e417611dfe4fb0704a13b32
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://maypoin.ru/wix?keyword=the+spread+of+communism+and+containment+worksheet', which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'worksheet'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware distribution attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=the+spread+of+communism+and+containment+worksheet PDF link annotation
    • http://zejizeb.22web.org/joyous_celebration_16_songs_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443602/normal_5ffab283d7b10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416928/normal_5ffb77f47bd07.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367923/normal_60028a733b58d.pdfIn PDF document text
    • http://limevekobo.iblogger.org/blend_synonym_formal.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451575/normal_6008a34cb340b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446036/normal_5fee779fe52f8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://povojenase.rf.gd/android_17_vs_piccolo_theme.pdfIn PDF document text
    • http://vagilamiporaw.epizy.com/fofiwun.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/free_compass_app_for_android.pdfIn PDF document text
    • http://timadulikojig.rf.gd/sleeping_eye_mask_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/rowdy_baby_video_song_tamil_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/menu_layout_template_free.pdfIn PDF document text
    • http://nadoniwofak.rf.gd/vosiwomasikojodav.pdfIn PDF document text
    • http://zikinevubebera.epizy.com/4311319036.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/ecology_study_guide_biology_roots.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/cal_spas_pomona_ca_91766.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_off0000defb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFB 5468 bytes
SHA-256: 8301e8f6790c8b0877cc1473cfef8ee7ae61ea325bb34c2757708039544bbd00
font_01_sfnt_off0000f17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17B 10196 bytes
SHA-256: efd3374072867d4a8279fde07e04a7ac1954dc92059108f2d4c4dfdb6ea3fd46

Open this report in the interactive analyzer, or submit your own file for analysis.