Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e580d99b234e5ad…

MALICIOUS

PDF

71.9 KB Created: 2021-04-03 17:05:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 90fd68649eec386d9f72996846dfb75c SHA-1: b881a60316317f156a1de5cd4407cbea4699e228 SHA-256: 8e580d99b234e5adb7cd421d460fd69342c74512aea4a7b7a69c5c6a9978c86e
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to host or redirect to a malicious payload. The document body, though heavily obfuscated, contains text related to 'Dj mixer apk 2020', suggesting a lure for users seeking such software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/wix?keyword=dj+mixer+apk+2020 PDF link annotation
    • http://xexogafuko.22web.org/slidedocs_free_templates.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415929/normal_6062b3253a877.pdfIn PDF document text
    • http://tiruxukanemaga.iblogger.org/dafujowugujis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478669/normal_603535ac2c52b.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/kelukakeb/1422981536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4af55ac-c4f1-4b24-8e9b-5113d1872d80/sagovejabul.pdfIn PDF document text
    • http://besenasoxa.epizy.com/how_to_use_omron_blood_pressure_wrist_monitor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/490deaad-37e0-4580-999e-1ac29189a873/lomowiwuji.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/62252204566.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/furiously_happy_raccoon_face.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a2fe061-8fe9-4019-97cb-0340a8b0e143/kizutedivezofixeredova.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a56fd62b-f45f-4e5c-a779-17f107f3ee9f/danup.pdfIn PDF document text
    • http://dimazobuxijema.epizy.com/difepewojamakenisigiw.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/94649948646.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f4dcff4-0217-4a07-98d6-ffba0c5b581d/diary_of_a_wimpy_kid_dvd_box_set_asda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43092d56-f148-4e5d-b7b5-14199f7ad3fe/kubezamazimeveza.pdfIn PDF document text
    • http://donolipapaxe.rf.gd/candy_camera_new_version_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/wezipimozaxakesobulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a09ffe8-9df4-45d4-93df-843b8287edf4/pirama.pdfIn PDF document text
    • https://s3.amazonaws.com/rizoli/gedeboguli.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/dowixufexen.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD302 5236 bytes
SHA-256: f96dfd632c1160d3e3636bcefce3ccde176b18d837cc4c5eb609f228842a0f5f
font_01_sfnt_off0000e4c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C4 2128 bytes
SHA-256: 0e0259ac06b5e63c9fbbe0b63de04b6375a8b8a1b56afe9f0e4286666c95e82a
font_02_sfnt_off0000ee93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE93 10408 bytes
SHA-256: 1a6a3baf64ab1271e8a9fca8a68e1dc9cd90d9b1c6cf09bef33cc0a64bd7bb13