Malicious PDF — malware analysis report

Static analysis result for SHA-256 5524599e9231a522…

MALICIOUS

PDF

94.4 KB Created: 2020-10-09 01:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-19
MD5: c70af49e6c43bae9e57827c776dbcd49 SHA-1: 19ba77d55e7499ba7f8c0d59b8e27d528e89fd0a SHA-256: 5524599e9231a522a82164cfe626c432f4cbb1ef10f732c3623b7fbba62c2981
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9841

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/strik?keyword=shock+wave+movie+english+subtitles In PDF document text
    • http://zarupiv.vincentsgermanshepherds.com/uploads/1/3/2/3/132302868/2926444.pdfIn PDF document text
    • http://dunipu.millardwesthoops.com/uploads/1/3/1/3/131383309/9002111.pdfIn PDF document text
    • https://site-1037101.mozfiles.com/files/1037101/24281871550.pdfIn PDF document text
    • https://site-1036781.mozfiles.com/files/1036781/sepegowepexokufot.pdfIn PDF document text
    • http://kimal.clawspawsetc.com/uploads/1/3/1/0/131070351/af902984ea.pdfIn PDF document text
    • http://files.foliageclovis.com/uploads/1/3/1/4/131437107/5384167.pdfIn PDF document text
    • http://files.kevinmaillard.com/uploads/1/3/0/9/130969570/1537fd5.pdfIn PDF document text
    • http://files.fbcapeville.org/uploads/1/3/1/0/131070011/zuroge.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_02_sfnt_off0000800e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_02_sfnt_off0000800e.bin)
    • http://fedorahosted.org/lohitIn extracted file (font_03_sfnt_off000092fe.bin)
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn extracted file (font_05_sfnt_off0000ab1e.bin)
    • http://smc.org.inhttp://smc.org.inIn extracted file (font_05_sfnt_off0000ab1e.bin)
    • http://www.indictrans.orgIn extracted file (font_10_sfnt_off0000e4af.bin)
    • http://www.opentle.orgIn extracted file (font_11_sfnt_off0000f24f.bin)
    • https://cdn.shopify.com/s/files/1/0498/0306/7556/files/fedex.com_backslash_we_listen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7014/4166/files/dijesugurovula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/2615/5173/files/jexari.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://dejavu.sourceforge.netIn extracted file (stream_017_off000137ea.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_017_off000137ea.bin)
    • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off00005d3f.bin)
    • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00005d3f.bin)
    • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00005d3f.bin)
    • http://scripts.sil.org/OFLIn extracted file (font_02_sfnt_off0000800e.bin)
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn extracted file (font_04_sfnt_off00009e02.bin)
    • http://www.gnu.org/copyleft/gpl.htmRegularIn extracted file (font_04_sfnt_off00009e02.bin)
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn extracted file (font_05_sfnt_off0000ab1e.bin)
    • http://sinhala.sourceforge.net/In extracted file (font_08_sfnt_off0000ccc1.bin)
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn extracted file (font_08_sfnt_off0000ccc1.bin)
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn extracted file (font_08_sfnt_off0000ccc1.bin)
    • http://www.gnu.org/licenses/gpl.htmlIn extracted file (font_11_sfnt_off0000f24f.bin)

Extracted artifacts 15

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_017_off000137ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x137EA 18892 bytes
SHA-256: 8d0631a67708bc6418499f9a32898eb4280c73fac939f914356e19def3de40eb
font_00_sfnt_off00005d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3F 7916 bytes
SHA-256: f3ab0e4d55b5834cc4bea6d366112cfde16f3969bfd3b2e87d79952e2a479afb
font_01_sfnt_off0000719e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719E 4032 bytes
SHA-256: 0889862b27db6f16b93976eb66cb8744d0b4cbda0195e93c42d6762382b7db91
font_02_sfnt_off0000800e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x800E 5576 bytes
SHA-256: 170ca8f45952ec47b8e36a64347161a5173a78d27c4d464591fc73959de881e4
font_03_sfnt_off000092fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92FE 2656 bytes
SHA-256: a37cda85596f57e6059ac1f1313d2f33c9be92add6fb1ab1e12a556d9deccb5f
font_04_sfnt_off00009e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E02 4140 bytes
SHA-256: b26921add8578393818b3bdf9e2c7a7d1f43cb19ce76009274ed6230ed2c25b8
font_05_sfnt_off0000ab1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB1E 3048 bytes
SHA-256: 847e43692b4a10112e82fb84c375f231ba1ee7ab465443990729ffbf4af2c1cf
font_06_sfnt_off0000b72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB72E 2328 bytes
SHA-256: 45e304c212156e29fe3879e373e8c4d4eb7f7558b9b507d9aa917d89ddd5a3bf
font_07_sfnt_off0000c1e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E4 2604 bytes
SHA-256: f243877ca4060d931d66dcf23c8171f13fd435ea64b4ad1826ac5076b7089185
font_08_sfnt_off0000ccc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC1 3840 bytes
SHA-256: d42d13d09b91ecb6ed79796d6977b5aa9c596f3f066ae9f8252c69c9db06301d
font_09_sfnt_off0000dad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD1 2108 bytes
SHA-256: bbcb7bd70734be4a31c6bf9508418ed7110da018ae6e7a12fcb8c363b0124794
font_10_sfnt_off0000e4af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AF 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_11_sfnt_off0000f24f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24F 6148 bytes
SHA-256: 0b8363bc9e07cf89205331d27bc1c31e4fc91592bb846ce71245372e642e4983
font_12_sfnt_off00010239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10239 17488 bytes
SHA-256: 726620e43b4888b329c8c21eb166a92cba553f6107b80585c7b0ac9553ea5d95
font_14_sfnt_off00015748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15748 3536 bytes
SHA-256: b7a45f797498e5f33b630b090e4d848311f62604596b7373ffe80669e785440f