Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d2140594d992ac…

MALICIOUS

PDF

119.4 KB Created: 2021-06-01 12:10:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67dff95b1ee505c5defdddd71b7fe948 SHA-1: 1dc46856d338c753393913202e0fd18e86c6083a SHA-256: c2d2140594d992ac7e0a32b4b1d4ba82360e8f22cdfb808c3e157c9c26247ff3
156 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it is part of a link farm, with numerous external links. One prominent URL, 'https://philabc.ru/pbw?utm_term=type+de+pronoms', is directly associated with this activity. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through the linked content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9930

Heuristics 5

  • 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
  • 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://philabc.ru/pbw?utm_term=type+de+pronoms
    • https://cdn-cms.f-static.net/uploads/4408002/normal_603b7ea2bd6d7.pdf
    • https://static.s123-cdn-static.com/uploads/4408186/normal_5fe0c7ff759d5.pdf
    • https://xuratofojiwob.weebly.com/uploads/1/3/4/0/134096374/fifixiti_kuzip_lololisop_xoxotiz.pdf
    • https://wuxipatinux.weebly.com/uploads/1/3/4/6/134662372/terokexewusosiri.pdf
    • https://rabivavas.weebly.com/uploads/1/3/0/9/130969809/wozide.pdf
    • https://cdn-cms.f-static.net/uploads/4464874/normal_601783db56acf.pdf
    • https://gurelupukuji.weebly.com/uploads/1/3/0/7/130775622/e0f757d5f3d.pdf
    • https://static.s123-cdn-static.com/uploads/4445326/normal_5fcf0d4f9dcc1.pdf
    • https://lenalavawin.weebly.com/uploads/1/3/4/7/134732275/zilinuwaz.pdf
    • https://static.s123-cdn-static-d.com/uploads/4379615/normal_60b5cab448997.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6015307c-efcf-4665-a455-f95a2ab29182/80995353527.pdf
    • https://uploads.strikinglycdn.com/files/4f994c2b-68b7-4f91-b259-9f6f899be5b9/how_to_program_rc_remote.pdf
    • https://uploads.strikinglycdn.com/files/60020664-635f-45cd-855e-f76a5a2cf3cf/can_you_lose_weight_on_sugar_free_diet.pdf
    • http://vowujepojez.pbworks.com/f/how_to_get_axes_in_lumber_tycoon_2_2021.pdf
    • https://uploads.strikinglycdn.com/files/ac16f827-baa8-482f-a544-b28dffbd4662/40411927450.pdf
    • https://uploads.strikinglycdn.com/files/4c20a276-f417-4fac-9c45-b1ebcfe8114d/54684075875.pdf
    • http://midevodimu.pbworks.com/f/real_credit_card_generator_with_billing_address.pdf
    • https://uploads.strikinglycdn.com/files/40202752-e805-43e8-aaf5-7844fa84ca85/52147482756.pdf
    • https://uploads.strikinglycdn.com/files/3f392763-6767-4d0a-b243-b780ca51b1f5/lasazisakirido.pdf
    • https://uploads.strikinglycdn.com/files/f42a17fb-95a1-4aa2-a32b-5718d00d515a/93888060129.pdf
    • https://uploads.strikinglycdn.com/files/cc283101-dd3e-4e64-b748-17bcddec3c66/genie_excelerator_2_learn_button.pdf
    • https://uploads.strikinglycdn.com/files/9a5b1bbd-da88-4570-a4a5-62c7df397eb3/newakoxipet.pdf
    • https://uploads.strikinglycdn.com/files/f61a4752-d4c6-41ea-96a3-a2c267b75278/29687528002.pdf
    • https://uploads.strikinglycdn.com/files/e66728b4-8fc5-44eb-89ae-4f49f1b3d048/the_wolf_of_wall_street_full_movie_free_online_watching.pdf
    • http://lijegazoz.pbworks.com/w/file/fetch/144416112/kipewaxi.pdf
    • https://uploads.strikinglycdn.com/files/a7945192-ee3c-4f0c-8a4c-6fd6d75517ee/casio_w800h_watch_band.pdf
    • https://uploads.strikinglycdn.com/files/ae7bbf79-7572-49d7-a470-327a05d7e200/cuisinart_cbk-200_2-lb_convection_bread_maker.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017d83.bin
0dc95782e0e0d43e07af3d25c4ccb4b3310bc347df65ca3f152b8983e8f9197f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17D83 4916 bytes
font_01_sfnt_off00018e30.bin
30280a894d8d812f5dad4329f1f7f01c152170bdf5a8b3056cd30827ed1bee39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18E30 13880 bytes
font_02_sfnt_off0001b909.bin
99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B909 16060 bytes

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