Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ae5485576d60e8…

MALICIOUS

PDF

58.6 KB Created: 2021-03-22 14:18:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f13bc8bb6a1fffca756a0a81e6e1becf SHA-1: e34d90691c7b6ceed703b0d42383b669619f1163 SHA-256: d1ae5485576d60e8780a2d9ef9660f551b704e7fbce0b9a29986f92a0f622e6e
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM', suggesting an attempt to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs point towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9037

Heuristics 4

  • 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.
  • 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
  • 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://botokaw.ru/aws?utm_term=we+vibe+match+amazon
    • http://biweekamnf.com/possessive_genitive_case_exercisesscbdj.pdf
    • http://nicepics.xyz/87682147757fxd0o.pdf
    • https://cdn.sqhk.co/sunawopi/nVjbcP4/naxobewe.pdf
    • http://albatros-trans.ru/nujoxobawapuxigububaw37so4.pdf
    • http://demask.space/poe_golemancer_elementalist_3._8vs7dh.pdf
    • https://cdn.sqhk.co/nugofonavuf/chfgioh/78795279740.pdf
    • https://cdn.sqhk.co/dutudovajud/gdRggp4/loudoun_county_property_tax_payment.pdf
    • http://laitlabs.pro/34031036574qv285.pdf
    • https://cdn.sqhk.co/besawevij/hU1jagc/wild_duck_hunting_2018-_19.pdf
    • https://cdn.sqhk.co/fuludasowipu/gvjbRhc/sexono.pdf
    • https://cdn.sqhk.co/vozeseseber/zzhijj7/roblox_god_simulator_2_codes_2019.pdf
    • https://cdn.sqhk.co/bunigenozav/jeJq3PK/air_control_heating_and_cooling_arkansas.pdf
    • http://itayoga.space/atrofia_del_nervio_optico6t8kx.pdf
    • http://natur-green.fun/adjective_to_adverb_forminkgx.pdf
    • https://cdn.sqhk.co/satukevaguka/igsIZhj/song_download_free_mp3_music_downloader_apk.pdf
    • https://cdn.sqhk.co/wozejodes/hcsmii3/wolf_girl_anime_characters.pdf
    • http://finansi-7.online/norirudakesosiranazi9cqw4.pdf
    • http://musofiron.ru/kosamusuv1t7b.pdf
    • https://cdn.sqhk.co/janawezexoj/MEhijid/live_wallpaper_earth_rotation_for_android.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6b3263b0-a83c-468e-80ee-361edc5280bb/flammable_cabinet_regulations_australia.pdf
    • https://94226b1b-8363-4ad6-a779-e61b7b16ff5b.filesusr.com/ugd/b3bc21_6dd80b986a3e47029d53eafcfdcbf468.pdf?index=true
    • https://uploads.strikinglycdn.com/files/04166d1a-06e4-4271-978e-77afe1ab8dec/30058470495.pdf
    • https://uploads.strikinglycdn.com/files/0286c28f-54c4-4ef8-9e9a-c54ffc60c0d0/66286842192.pdf
    • https://uploads.strikinglycdn.com/files/deefd5fb-527d-489e-92b1-0eae64a340ea/15817093887.pdf
    • https://uploads.strikinglycdn.com/files/0eeac4c6-bca8-4ac4-bec1-3af325f7bee6/sogesokerogadok.pdf
    • https://7fd92c66-d3af-485c-b7a9-31529ddfb1b5.filesusr.com/ugd/997d0f_6ee9e32f52b4440c81433841209202ae.pdf?index=true
    • https://e4da1597-3bb3-488b-9226-7c2c9e06e9ce.filesusr.com/ugd/db5d73_cfd832af9bdc4360ac38877e3a4fffdb.pdf?index=true
    • https://443275ec-395d-4f86-84c9-2ed7a250e117.filesusr.com/ugd/7d471d_d57d9ac9e31644909cc2b30b7bc713c0.pdf?index=true
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7d7.bin
ca19095349279624f64f2c2dfe1eaa1dfe66e3055a2c2dfe4a452324b12aee5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D7 4996 bytes

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