Malicious PDF — malware analysis report

Static analysis result for SHA-256 8019fa05c7c303d9…

MALICIOUS

PDF

78.2 KB Created: 2021-02-27 00:40:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f4074a8f405f0e6cac2887af6b78aaf SHA-1: d2f2249cecf7371a90185743597e3e0bb3468eec SHA-256: 8019fa05c7c303d9cfb445369b65a19cc793fe9963de6e63ad91e91c84a366a7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI and the overall malicious verdict suggest an attempt to exploit user interaction via a lure.

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://lozipotod.ru/123?utm_term=word+online+formatting+issues
    • http://gejesixave.scienceontheweb.net/does_bodyboss_really_work.pdf
    • http://fisareboveda.getenjoyment.net/duzunoluxesuguval.pdf
    • http://xuwuvewisin.mypressonline.com/what_is_the_main_difference_between_an_llc_and_a_corporation.pdf
    • https://cdn-cms.f-static.net/uploads/4370054/normal_60241eef924a0.pdf
    • https://cdn-cms.f-static.net/uploads/4412388/normal_6018d30628de6.pdf
    • http://luwogexejel.getenjoyment.net/hebrew_greek_key_word_study_bible_online.pdf
    • http://tidirakozodawon.getenjoyment.net/d-link_dsl-2750u_software_update_download.pdf
    • http://kasaxeko.mypressonline.com/bella_pro_series_belgian_flip_waffle_maker_reviews.pdf
    • http://gajonedorebuko.mywebcommunity.org/greek_god_names_that_start_with_a_p.pdf
    • http://roxelejabojafe.scienceontheweb.net/wagodorol.pdf
    • http://xafesuvorolivig.scienceontheweb.net/63506249526.pdf
    • https://static.s123-cdn-static.com/uploads/4427821/normal_5ff4fee6db5a8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://nufiwimuzobo.onlinewebshop.net/hp_laserjet_2100_tn_treiber_windows_10.pdf
    • http://pidodexogejax.myartsonline.com/stay_strong_father_quotes.pdf
    • http://gafodix.myartsonline.com/37152727265.pdf
    • http://vorisenunajix.myartsonline.com/lixizajovusowikarizunik.pdf
    • http://rususekobijo.myartsonline.com/sonicwall_tz400_max_throughput.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_off0000e77f.bin
c011e222f58ebd0c7501692b4fb62b1133c563b3dbbe28ef1931efb11e378461
pdf-font-stream PDF embedded font (sfnt) at offset 0xE77F 5120 bytes
font_01_sfnt_off0000f8e0.bin
f29d999a8b5a5590824dba4efe4a5712eff19c5a1c44694fab4b2728d564f158
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E0 11080 bytes
font_02_sfnt_off00011d6b.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x11D6B 4324 bytes