Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad6b55acd787cdb5…

MALICIOUS

PDF

75.9 KB Created: 2021-03-22 20:58:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6eba8eb2fb5bca40d4f78d5339be4148 SHA-1: 93e1b62e481138764fd66034454df63a013c4e62 SHA-256: ad6b55acd787cdb5cfb0847d06443536f8fe4d3cbf379091e58921b8c58126ec
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 phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though partially corrupted, suggests a lure related to a 'service program guide'. No scripts were extracted, but the presence of embedded URIs and the overall detection profile strongly suggest a phishing 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://mezovuduw.ru/wix?keyword=ap+with+we+service+program+guide
    • https://moxuvobojivoz.weebly.com/uploads/1/3/0/8/130873852/tarixuruno_fosekelosi_jelewopivijes_fovizedoz.pdf
    • https://static.s123-cdn-static.com/uploads/4374374/normal_5fe5b3cebbd93.pdf
    • https://cdn-cms.f-static.net/uploads/4479213/normal_603e5944ddd41.pdf
    • https://cdn-cms.f-static.net/uploads/4481509/normal_60225c3b24faa.pdf
    • https://modisogisutoval.weebly.com/uploads/1/3/5/3/135390942/9041ad74d4e.pdf
    • http://jupomolitage.22web.org/unaccompanied_trumpet_solos.pdf
    • https://cdn-cms.f-static.net/uploads/4427313/normal_5fd8339031cee.pdf
    • https://nalafefig.weebly.com/uploads/1/3/1/3/131379301/6710864.pdf
    • https://cdn-cms.f-static.net/uploads/4464065/normal_6021677f16d17.pdf
    • https://static.s123-cdn-static.com/uploads/4453551/normal_5fe3a00c675f2.pdf
    • https://cdn-cms.f-static.net/uploads/4465555/normal_603506fc2be28.pdf
    • https://static.s123-cdn-static.com/uploads/4476011/normal_5fca61e4ad6bf.pdf
    • http://kenurexil.22web.org/7871750065.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8d5a78ca-f056-41e0-a125-0da93ae0d011/zazel.pdf
    • http://lozebaloporan.epizy.com/french_arabic_dictionary_apk_offline.pdf
    • http://kopunumepoz.rf.gd/what_does_pos_mean_on_braun_thermoscan.pdf
    • http://zapurokorilagar.rf.gd/rabebaresezev.pdf
    • https://uploads.strikinglycdn.com/files/6d9237ec-146e-47a0-becc-43da8e710a88/nosovuzolufekesenolem.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea95.bin
91d8b1dbf4866f46be7f7b3f380b625553111595ec71e8dbf3bef1409893fa94
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA95 5596 bytes
font_01_sfnt_off0000fd85.bin
16e0cb052ab736faeb302469281361de2e84bf3ee8fcfc5aea3c764abb2cc071
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD85 10924 bytes