Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9025fdfe1fab8cb…

MALICIOUS

PDF

81.8 KB Created: 2021-05-17 00:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d14eca19909cc4802d6b4e6b89140fe SHA-1: 9175066790b71fde7212a40b6897c8713405db16 SHA-256: e9025fdfe1fab8cb0eb4553f72ee340763a7be0c824a164e51fc1c76ac4b32ad
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 phishing page disguised as a technical support issue for an LG inverter. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit user trust and lead them to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/strik?utm_term=lg+inverter+v+swing+not+working
    • http://xapiduxirob.mywebcommunity.org/bsc_1st_year_zoology_books.pdf
    • http://wepiriv.22web.org/janeserepo.pdf
    • https://cdn-cms.f-static.net/uploads/4501383/normal_602a12d19693b.pdf
    • https://static.s123-cdn-static.com/uploads/4477156/normal_5fc7ab2fb1c20.pdf
    • https://cdn-cms.f-static.net/uploads/4484365/normal_5fd6463b031fd.pdf
    • http://nisakuwisiz.22web.org/gastritis_aguda_definicion.pdf
    • https://cdn-cms.f-static.net/uploads/4408180/normal_603ec8d54fdf8.pdf
    • http://xewitanajudozu.iblogger.org/bamisavojuxekulumutogiku.pdf
    • http://kulovemalam.22web.org/13431072406.pdf
    • http://xasebilebefetut.iblogger.org/review_of_medical_microbiology_and_immunology_15th_edition_free_download.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xijejuvi.myartsonline.com/pathogenesis_of_mycobacterium_tuberculosis.pdf
    • http://saderure.rf.gd/fofogusosotomed.pdf
    • http://vubixegigag.rf.gd/nonubujabedideregod.pdf
    • http://nefoxujegodusif.rf.gd/zixelavilatu.pdf
    • https://uploads.strikinglycdn.com/files/7d8976f7-bbb2-495c-b40d-4659bdfd907d/avh-x3600bhs_firmware_update.pdf
    • http://gemawinikifiv.myartsonline.com/21701542061.pdf
    • https://uploads.strikinglycdn.com/files/2dd54a6c-8c99-4347-b452-0d912facefd9/most_common_spanish_words_in_english.pdf
    • https://uploads.strikinglycdn.com/files/458f449e-2c84-456e-ac9d-7306c647777a/34940959161.pdf
    • http://desakoda.rf.gd/cursive_writing_worksheets_lowercase.pdf
    • http://firumod.epizy.com/tapibuto.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_off0000f99a.bin
a91d601ca1a5333e7f3f5ebd72cbb3d27bdea134d614145d016af66be0706a58
pdf-font-stream PDF embedded font (sfnt) at offset 0xF99A 2992 bytes
font_01_sfnt_off0001043e.bin
43b4d4042fc17d7a8450c27f2f1eb3a60fb958cd3061f5b2dc46630969b4035d
pdf-font-stream PDF embedded font (sfnt) at offset 0x1043E 4768 bytes
font_02_sfnt_off000114a9.bin
b3634bc05ebdd0fb9c97a70e5fc69673dc571f22ee97fde752f4e52ef55cc9eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x114A9 10824 bytes