Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d9532c8215f1953…

MALICIOUS

PDF

86.4 KB Created: 2021-03-27 14:38:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e8ec8ed3bf0349ed3dabeac05731c9e SHA-1: 7cf28d92f7237c8b0f6e10286becd7d757e96429 SHA-256: 5d9532c8215f195303b6d073ece7999db59bf45b14447622edad4e4a1c696131
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains numerous embedded URLs, with the primary one being https://soxebez.ru/wix?keyword=pihu+myra+vishwakarma+age, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate malicious intent, likely involving the exploitation of PDF vulnerabilities or social engineering to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://soxebez.ru/wix?keyword=pihu+myra+vishwakarma+age
    • http://ca-manalapan.space/dnd_unearthed_arcana_roguelpgqq.pdf
    • http://leaninrzpd.site/4000_miles_script3j964.pdf
    • https://cdn-cms.f-static.net/uploads/4454967/normal_6047b715bf442.pdf
    • http://mobufuwiwid.medianewsonline.com/how_to_replace_a_septic_drain_field.pdf
    • http://itverys.space/friendly_tv_channel_listz5izu.pdf
    • http://bumawusuka.mypressonline.com/86150899828.pdf
    • https://cdn-cms.f-static.net/uploads/4412909/normal_605f0079567b1.pdf
    • http://ch-redirect.icu/pokemon_planet_shiny_hackhz1ya.pdf
    • http://uspeh.icu/doterra_price_per_drop_sheet_20192w1mp.pdf
    • http://just-gopro.com/verbal_reasoning_11_past_papers5j4fq.pdf
    • http://recepty-dd.info/the_complete_dictionary_of_symbols_in_myth_art_and_literature6tsbf.pdf
    • http://qrastenmap.online/clasificacin_de_funciones_ejemplosj5k5e.pdf
    • https://cdn-cms.f-static.net/uploads/4489976/normal_602c7fe7c22cc.pdf
    • http://antinomi.design/28902159531e2a52.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://aa6d2f86-95e2-42cc-897e-6bbd71c3a116.filesusr.com/ugd/78daac_0777541a82d440c39c6939df65575ae2.pdf?index=true
    • http://jozobudesurarab.onlinewebshop.net/9225340622.pdf
    • https://0fc0baf9-b884-4fcd-968e-f93c0f938930.filesusr.com/ugd/68ec51_0616012ee4604527be74dc2958046045.pdf?index=true
    • https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_ac4a5760bc1a4eae997eeb2d0ef77403.pdf?index=true
    • https://d7d9470a-9784-4c28-ac68-b1ab0f70ddf3.filesusr.com/ugd/148484_b9e0d68f5c2749bb8478721e135e3952.pdf?index=true
    • https://9579f988-9383-433c-acf3-5fff76e0c882.filesusr.com/ugd/191a6d_412f2c3f5ac742bbb15447aac331205e.pdf?index=true
    • https://8860adff-7f0b-4cf3-a358-cdd560dff136.filesusr.com/ugd/625844_964749bd9f3446d685b3f0f8b2a6f350.pdf?index=true
    • 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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef76.bin
55fed8f276f1eb6504b5a546c35e45486cca87cecb92d25fbf2ef3fd9287bbba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF76 4972 bytes
font_01_sfnt_off00010062.bin
bcba76a53b0fd2497b0747709aff2258e142cafae4f13f3baa4c2f464a3ecd99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10062 11952 bytes
font_02_sfnt_off000128f9.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128F9 16164 bytes
font_03_sfnt_off00013e11.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E11 4324 bytes

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