Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e0d935bf3bc4dc…

MALICIOUS

PDF

78.3 KB Created: 2021-02-26 22:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d7ea33d2912bd1497e408a0d11bb6e4 SHA-1: 770f97022c4c4a76e28ab9113d4d8e45da307638 SHA-256: b7e0d935bf3bc4dc195e770932c1cf23b70073f5b6b86783f65cc9c8ecd9c2b6
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely intended to host a phishing or malware payload. The document body, though heavily obfuscated, suggests a deceptive lure related to religious texts, consistent with phishing tactics.

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://zajinet.ru/strik?utm_term=skeptic%2527s+annotated+bible+refuted
    • https://rixutabenenik.weebly.com/uploads/1/3/4/4/134498467/vafetiwusozubevufab.pdf
    • https://jafoxoxuxovawe.weebly.com/uploads/1/3/0/8/130813536/1514776.pdf
    • https://bifukumuvu.weebly.com/uploads/1/3/5/3/135347201/0f16082bbf043.pdf
    • https://zipuwuxa.weebly.com/uploads/1/3/4/3/134376087/3697559.pdf
    • https://cdn-cms.f-static.net/uploads/4478415/normal_5fd76e1338292.pdf
    • http://sugameloxufe.mywebcommunity.org/64374446802.pdf
    • https://cdn-cms.f-static.net/uploads/4479916/normal_602c6cf32b383.pdf
    • http://pevazaw.mypressonline.com/why_is_my_pellet_stove_shutting_off.pdf
    • http://xoziduso.mypressonline.com/38676326915.pdf
    • https://suxokigivulumu.weebly.com/uploads/1/3/4/4/134479742/461e1b13785768.pdf
    • https://cdn-cms.f-static.net/uploads/4387589/normal_5fdb7caea6960.pdf
    • https://cdn-cms.f-static.net/uploads/4368469/normal_60313130105bf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jotizifime/forest_plot_excel_template.pdf
    • https://s3.amazonaws.com/rujabepifar/16299397702.pdf
    • http://lobopekogolo.onlinewebshop.net/new_york_philharmonic_principal_horn_audition.pdf
    • https://s3.amazonaws.com/wupiwupiwot/24617631482.pdf
    • https://s3.amazonaws.com/mejawiwomak/bullying_behaviors_among_us_youth.pdf
    • https://s3.amazonaws.com/dagasopones/2898360355.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7df.bin
66f8b6b7ef37a939f08a0a94680980a05ffc519dfcb045f61f98788fdb43172c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DF 5372 bytes
font_01_sfnt_off0000fa27.bin
fadb24edf8bac1147dbe1bb63c40a48934d6170efd6b299d6ed592c9b0c9aeed
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA27 10584 bytes
font_02_sfnt_off00011e26.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E26 4324 bytes