Malicious PDF — malware analysis report

Static analysis result for SHA-256 da0e55a3d61ff396…

MALICIOUS

PDF

78.6 KB Created: 2021-03-27 15:29:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eef74e84dd092f40916d15fdbb411474 SHA-1: 5cba0497faa94cbc7adec5d5eff3b10c30b50ca4 SHA-256: da0e55a3d61ff396ea132e2439c8153a1cb74f164c2ad0ff14851949d29e5269
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, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'nipisod.ru' suggests an attempt to redirect the user to a potentially harmful site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution scheme, likely leveraging social engineering by appearing as a legal document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://nipisod.ru/award?keyword=criminal+law+and+its+processes+cases+and+materials+pdf
    • http://rollernefrit.xyz/paposeborufenukajorefuk6ttnf.pdf
    • http://sale20.site/ubuntu_32_bit_imagebrlk2.pdf
    • http://okrasote.info/innovative_teaching_methods_in_nursing_education0ybkd.pdf
    • http://tehnoprom.org/arduino_bluetooth_android_project4e38e.pdf
    • http://stankovit.ru/inheritance_series_downloadoe39g.pdf
    • https://dafizigupiteg.weebly.com/uploads/1/3/4/4/134492389/977727.pdf
    • https://cdn.sqhk.co/muruwake/Lij4jja/private_tunnel_vpn_apk_mod.pdf
    • http://khareedforosh.com/planeaciones_telesecundaria_tercer_gradoboguj.pdf
    • http://ozalupa.space/ark_snapshot_16_black_screen9tnbm.pdf
    • http://2020coupons.info/blue_dye_pregnancy_test_faint_linet5gm6.pdf
    • https://tipureroxagojox.weebly.com/uploads/1/3/6/0/136096040/b6c4d88d19e85.pdf
    • https://jivetigaforivuj.weebly.com/uploads/1/3/4/3/134350389/2691809.pdf
    • https://tolirufatava.weebly.com/uploads/1/3/4/8/134879039/suses_vekarenox_sadegevizivom_towomeso.pdf
    • https://voropulunonuz.weebly.com/uploads/1/3/5/3/135316946/soduvalivupuzox.pdf
    • https://cdn.sqhk.co/daposofoxig/ijegjgg/loravekijofodedisebofafu.pdf
    • https://ganalazukomej.weebly.com/uploads/1/3/4/7/134714395/ligizewipinisowibo.pdf
    • https://semomekavo.weebly.com/uploads/1/3/4/3/134373715/3db7c42d.pdf
    • http://spiritstudio.ru/dasagakozh5ddo.pdf
    • https://diwimiwiwomenen.weebly.com/uploads/1/3/0/9/130969795/xurofejos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/0ce024bd-3fb0-4799-93e1-28c6114f733c/great_gatsby_vocabulary_quizlet.pdf
    • https://uploads.strikinglycdn.com/files/71ad771f-7e6a-4ae3-bf87-4ec2387ad1f9/my_cloud_storage.pdf
    • https://uploads.strikinglycdn.com/files/5f8fed38-22fd-4a30-a581-ff884c85039b/bokanediwagedabemiduganur.pdf
    • https://uploads.strikinglycdn.com/files/fb441e20-c354-47f5-90a4-83c370576023/botusuteteg.pdf
    • https://uploads.strikinglycdn.com/files/3121f665-f507-4cac-8600-f71defddc7e2/kitchenaid_dishwasher_model_kdfe104dbl0_manual.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
font_00_sfnt_off0000e73f.bin
c2a7316805b1930c3a081120996a0e32e68d9fa1c2305bcb753aaadf03178e41		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE73F 5204 bytes
font_01_sfnt_off0000f8e1.bin
999ad515279ebe72eb268ab1651db11a032cf26c895b17148cb1a9af6c2d3f71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E1 11020 bytes
font_02_sfnt_off00011e4c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E4C 4324 bytes

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