Malicious PDF — malware analysis report

Static analysis result for SHA-256 1970c7afdca7d9bd…

MALICIOUS

PDF

87.4 KB Created: 2021-03-17 06:02:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50c51c9f3655651faeafba074b2636b0 SHA-1: 48b0a98a1d54fa6a90242dfcc6652122135657ab SHA-256: 1970c7afdca7d9bdeb2072441695259204565a78143caaa8f7e6d4344fcc49a5
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and numerous other unknown URLs are present within the document. The ML classifier and ClamAV detection strongly indicate maliciousness, consistent with a phishing lure for a song download. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user 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://resalured.ru/123?utm_term=adada+mazhaida+song+free
    • http://fesaniru.iblogger.org/wisuwugobodosa.pdf
    • http://crysety.xyz/kenya_top_bar_hive_plansaczdr.pdf
    • http://repair-monokoles.ru/how_to_add_water_to_vicks_humidifier07dur.pdf
    • http://bestita.space/90240514583ettwn.pdf
    • http://ru-1.casa/les_miserables_song_lyrics_bring_him_home03c90.pdf
    • http://lalixodurabemu.iblogger.org/grade_4_grammar_worksheet.pdf
    • http://ulekschool.online/70937462433p827i.pdf
    • http://rocketdocs.us/mutuxelimanewewwiq.pdf
    • http://zigodijod.iblogger.org/cbse_class_12_syllabus_2020_19_download.pdf
    • http://fedorahosted.org/lohit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/89a0887e-2cde-4241-9be5-89d0b4e65db8/vamusozakimamuvomexati.pdf
    • https://uploads.strikinglycdn.com/files/b4bfd62c-8024-48e1-b311-c50aecec84fd/5829110413.pdf
    • http://kizofenumuvuma.epizy.com/politik_pemerintahan_amerika_serikat.pdf
    • https://s3.amazonaws.com/kizugokofo/manonofikumedunijixoviti.pdf
    • https://s3.amazonaws.com/bokelur/blackdecker_rcs614_rice_cooker_14-cup_with_saute_function.pdf
    • https://uploads.strikinglycdn.com/files/0a7460fe-9930-4cd2-9249-0ef763adaeff/70716071506.pdf
    • https://uploads.strikinglycdn.com/files/fe55b1b5-3b08-49c0-84be-e1764dc26e87/busurabuguferu.pdf
    • https://uploads.strikinglycdn.com/files/66705b4b-fc89-4e63-82a3-feb1690d8932/58857716378.pdf
    • https://uploads.strikinglycdn.com/files/4a3e1905-d8ec-469b-9c7b-dae8baf28e16/how_to_cook_ham_in_oven_bag.pdf
    • https://s3.amazonaws.com/busutafitufe/mimovimetefasuw.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
stream_003_off0000fcd3.bin
ef2a9ef01e76f0bd42b23bdd52103bf9f4904e2d5c3621f23b1758593e14356e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xFCD3 19936 bytes
font_00_sfnt_off0000eadb.bin
9e14441aa2e4f508387083aed0528ed0372a504340df80d4248ff894c5521b09		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEADB 5328 bytes
font_02_sfnt_off00012a43.bin
539840cc490284854b5e9954839ba99c8d611fcce24464d89491dac26e2605ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A43 11164 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.