Malicious PDF — malware analysis report

Static analysis result for SHA-256 34990a805184d214…

MALICIOUS

PDF

108.0 KB Created: 2021-03-04 08:02:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b1690a96925d82c481bf9f7b2be17116 SHA-1: ada7d7b798d173a713bc84758bf1606293ef798b SHA-256: 34990a805184d214ee0f4aec46e8b568b7f803a262279a9f20e3cb93acef2884
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to Weebly and AWS S3 domains, suggesting a link farm or SEO manipulation tactic. The primary external URI, 'https://pelibifir.ru/strik?utm_term=what+is+practical+knowledge+in+hindi+language', indicates a potential phishing or malicious redirection attempt. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9866

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://pelibifir.ru/strik?utm_term=what+is+practical+knowledge+in+hindi+language PDF link annotation
    • https://sabitafev.weebly.com/uploads/1/3/4/3/134308069/9800bd9e8a.pdfIn PDF document text
    • http://witinub.iblogger.org/rita_mulcahy_pmp_exam_prep_10th_edition_download.pdfIn PDF document text
    • https://rupanusevufow.weebly.com/uploads/1/3/1/3/131380126/4dfe4b83e0eb7.pdfIn PDF document text
    • https://vedasozeseso.weebly.com/uploads/1/3/4/3/134388395/7676955.pdfIn PDF document text
    • https://dujomimip.weebly.com/uploads/1/3/6/0/136086420/zisakerik.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/mFjgRfG/tank_wars_io_2.pdfIn PDF document text
    • https://zigudawaza.weebly.com/uploads/1/3/6/0/136035030/lexez.pdfIn PDF document text
    • https://mikuzowadakan.weebly.com/uploads/1/3/1/3/131383480/e762e4d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/24818982590.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/48365966206.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/the_witcher_bautismo_de_fuego.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/malubipolanezuperufukezan.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/z_black_md_kd_song_lyrics.pdfIn PDF document text
    • http://naditoliwinudev.epizy.com/collection_in_java_free.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 12

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A8 5504 bytes
SHA-256: 099d31d908f7d5410fe971537c9f39443c85f03b463781f9c69e430ea0af1298
font_01_sfnt_off0000e372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE372 2656 bytes
SHA-256: c206ac4eca120f096112d408dff6b33a2f721090936d80486df636e1cd240fde
font_02_sfnt_off0000ee76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE76 6040 bytes
SHA-256: 9a3097609e8966b6825487fe40bbd6f544caf5e1088e128e440e9b7517dfd814
font_03_sfnt_off000101ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101FF 3048 bytes
SHA-256: 4bb619f7e4c8d10c6650d66271e6db770d7def95493d885be3efe54e7c100c22
font_04_sfnt_off00010e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0D 2328 bytes
SHA-256: 3702365b3034b9d7945da23b991b5e2ac3f8bb06d1ba3be7e5ba1b5d8dd48c9f
font_05_sfnt_off000118c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118C6 2604 bytes
SHA-256: 7f3a1ef136f36ba68bc36e5bcd31de243dce7f4b60e01c4bc40f508baeb48ca0
font_06_sfnt_off000123df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123DF 2108 bytes
SHA-256: e66bd646ff29f48b94a898642357a1d5295b77faffa0bd70eb77acb4aebc9a97
font_07_sfnt_off00012db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DB4 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_08_sfnt_off00013b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B55 10964 bytes
SHA-256: b3c9bc99f9c7458cdb60630e5a2d1aa942aadb605b21c78a7b43cf80b5ef1d7f
font_09_sfnt_off0001602f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1602F 17100 bytes
SHA-256: 747dbb29efb51a8e801ac70185edba550416bdc715fd72a91d018f2e2f968c42
font_10_sfnt_off0001792e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1792E 7620 bytes
SHA-256: eeb4fcdbe0406f5f35809239cc9f451551986708f572184ac1be89110dd4324b
font_11_sfnt_off00019312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19312 2608 bytes
SHA-256: c4869f4910101e9de114603d80c87e7465cc14a3edf423f39a6ef78b10429b6f

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