Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e61344a28ea1786…

MALICIOUS

PDF

80.5 KB Created: 2021-02-02 11:56:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 630155e4276403318bf80838ad1e552e SHA-1: 8a1500abeece131f6cfbc4aa38a0dfaf843565b6 SHA-256: 8e61344a28ea178684a4c0bca1a4f17afafd4c3bb2806f9ae95b76bbed48fb06
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'seumenha.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure designed to trick users into visiting 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/aws?utm_term=creo+parametric+6.+0+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422637/normal_6008a4217916c.pdfIn PDF document text
    • https://cdn.sqhk.co/lutumodigi/jhibWgQ/banana_milkshake_recipes_without_ice_cream.pdfIn PDF document text
    • https://cdn.sqhk.co/gipudeviwapi/dIHR3ha/enemy_strike_mod_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422659/normal_5fff327ce12a7.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/bjaUkjj/ziwixavajewubirulobabenob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447447/normal_5ff7c719e4a11.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/eFWgg63/chocolate_covered_fruit_and_nuts_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/e7gf4bv/vetifegexepipekimuj.pdfIn PDF document text
    • https://cdn.sqhk.co/faxinomitux/lWighbm/19294057804.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/heiihhw/nibiwazipis.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/ZUjeAgf/high_powered_flashlight_super_bright_led_light.pdfIn PDF document text
    • https://cdn.sqhk.co/vivepovugeli/hg6rhhK/24242567456.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/ijiazhf/best_tuner_cars_in_gta_5_online_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500450/normal_60091da32df94.pdfIn PDF document text
    • https://cdn.sqhk.co/keropolor/jjige3d/litafinogaxavanefobenu.pdfIn PDF document text
    • https://cdn.sqhk.co/kelulegawi/g2hezRh/pirate_kings_hack_apk_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xabalaru/brazil_2010_world_cup_squad_formation.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/canon_lide_100_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/dragon_s_crown_pro_ps4_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/sogebafinuxago.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC4 5324 bytes
SHA-256: 1dd5b787e04845e202608432e0b3234abbac86a45b6189ec6d6c9f68c39a2262
font_01_sfnt_off00010fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FCD 10816 bytes
SHA-256: 115ab0fb7ec459e9993257deaa1e419d02e6f3fb2737b9d38ddc6c56a7aba04b

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