Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade3119183d54b59…

MALICIOUS

PDF

92.6 KB Created: 2021-05-08 00:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 5037411e3c3242b545fe0b69e08f5c7d SHA-1: 4e78c495709308485cf59cf3ffa1330e198290a3 SHA-256: ade3119183d54b59ec881ccd26baa5901ba40896af3a0bc3f2599bb8f80779cb
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for phishing and SEO spam. One prominent link, 'https://xezojetit.ru/strik?utm_term=how+long+to+get+driver+license+in+mail', suggests a lure related to driver's licenses. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://xezojetit.ru/strik?utm_term=how+long+to+get+driver+license+in+mail PDF link annotation
    • https://cdn.sqhk.co/jinubodilev/HhghNnx/extreme_suv_driving_simulator_mod_apk.pdfIn PDF document text
    • http://sell-toclick.online/7202676293oc28l.pdfIn PDF document text
    • http://menbp.online/874141091292q5pn.pdfIn PDF document text
    • http://nejupike.mygamesonline.org/51266969622.pdfIn PDF document text
    • http://sakulog.sportsontheweb.net/takozolojamebubajobez.pdfIn PDF document text
    • https://cdn.sqhk.co/nojebimit/ji6hcKT/zombieland_saga_saki.pdfIn PDF document text
    • https://cdn.sqhk.co/mafokesaxuvi/80cAxha/silly_winks_double_sided_adhesive_sheets.pdfIn PDF document text
    • https://cdn.sqhk.co/xolokenuw/jiaHa3f/zikigolajufevo.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/jeworurowam/broward_college_nursing_program_physical_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/avett_brothers_morning_song_lyrics_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/captain_america_shield_image.pdfIn PDF document text
    • https://6bfd3344-23d3-4e03-ab7d-00c1c23eecf6.filesusr.com/ugd/be19e1_38c56952d6b24ff3ac84724a5834f4be.pdf?index=trueIn PDF document text
    • https://1b3fde16-7575-45ba-b40e-8916c64185ca.filesusr.com/ugd/8874e8_c69632e49e8a4117b9ec244e74841920.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/maxejabo.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/lo_que_no_te_mata_te_hace_ms_fuerte_pelicula_wikipedia.pdfIn PDF document text
    • https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_54dba1087ba94be8a76cbf0a05c99a04.pdf?index=trueIn PDF document text
    • https://fb7bf4c5-056f-4058-a7d1-073478569b53.filesusr.com/ugd/d90490_04e07f5cf35d4a6a9349e145679e2810.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/watajive/89681270338.pdfIn PDF document text
    • https://000bb656-a8cb-4e8b-9327-0b0ec99f56fe.filesusr.com/ugd/3f812e_29b2454436f1455e8b7c4f4c78cd68fb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/call_of_duty_dolphin_emulator_android.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/horizon_zero_dawn_trophies_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/visamodalovuxerezubimof.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001123d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1123D 5372 bytes
SHA-256: 136906fbc222e0b1c5d0125117f7e87bd1539d0a9e444cf2279df80cc98a2770
font_01_sfnt_off00012480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12480 12136 bytes
SHA-256: f9a7f09a8e359d413f41a6efdafcb9ffa7d75865aac10a72111dad43391e7ded
font_02_sfnt_off00014d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D9B 16232 bytes
SHA-256: f9e711f2bfa3a8b6ac2e655ede59d1153c5b1845b6ef0bf43f0f7514c3c7ee70

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