Malicious PDF — malware analysis report

Static analysis result for SHA-256 28e42cb1ee528cea…

MALICIOUS

PDF

82.3 KB Created: 2021-06-02 18:29:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 574c9b7532a86c95650f237474df63d7 SHA-1: d44dca9ce46112dfdf612b532d95a2fbd76f17ef SHA-256: 28e42cb1ee528cea32316d044eeac3be5377a1c993f0f528b8ed2d727e801ef8
196 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a phishing lure for an advance-fee scam, specifically mentioning parcel delivery. It also contains numerous external links, with one pointing to 'allytemp.ru', likely a malicious domain. The ML classifier and ClamAV detection strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://allytemp.ru/pbw?utm_term=how+to+report+damaged+baggage+american+airlines
    • https://static.s123-cdn-static.com/uploads/4501367/normal_5fe0b7a09cd8e.pdf
    • https://sodejokare.weebly.com/uploads/1/3/4/3/134349501/f94432fad514.pdf
    • https://vumenaxusavow.weebly.com/uploads/1/3/4/6/134600171/tonopube-xusirexaz.pdf
    • https://xudaxeja.weebly.com/uploads/1/3/4/3/134339900/7073917.pdf
    • https://cdn-cms.f-static.net/uploads/4453105/normal_6053e3ddb9ae8.pdf
    • https://gebedosoxabitox.weebly.com/uploads/1/3/5/3/135324181/gofebil_lugifemusur.pdf
    • https://dabelebixoxo.weebly.com/uploads/1/3/5/3/135310161/sesopiliw-zewuvosiru.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://ziludezubeju.pbworks.com/f/chi_selfie_por_evance_melekan.pdf
    • http://xedidovetaw.pbworks.com/f/cats_the_movie_cast_2018.pdf
    • https://uploads.strikinglycdn.com/files/892567e5-e6ed-47b0-abf8-0443a5fc9f0a/what_is_modernist_cuisine.pdf
    • https://uploads.strikinglycdn.com/files/cba5fd86-46b4-40f7-a7de-a5b868c62739/gupugijedunisakijulabewon.pdf
    • https://uploads.strikinglycdn.com/files/3b79a2f4-db81-4d21-9a66-212f2c144fc9/pigumefowe.pdf
    • https://uploads.strikinglycdn.com/files/fa018be3-69f0-4d6e-b287-1f27bfcd5726/40612391378.pdf
    • http://faxamom.pbworks.com/w/file/fetch/144472353/how_to_do_3d_in_autocad_2020.pdf
    • http://tujelupirobe.pbworks.com/f/how_to_make_hydroponic_fodder_grass_shelter_in_kenya.pdf
    • https://uploads.strikinglycdn.com/files/e71436e2-dc3b-48f8-817e-aa0047c640a5/what_is_strategic_hr_management.pdf
    • http://genarozep.pbworks.com/w/file/fetch/144490302/alif_laam_meem_zalikal_kitabu.pdf
    • https://uploads.strikinglycdn.com/files/e49f51b3-0127-44d7-b42c-57eedfa13b58/9000979898.pdf
    • https://uploads.strikinglycdn.com/files/37098e31-71d6-4a3c-84cc-80142a7ac63b/how_much_should_i_pay_for_graphic_design.pdf
    • http://wikoborumun.pbworks.com/f/94664977185.pdf
    • http://jesababa.pbworks.com/w/file/fetch/144413847/what_is_the_difference_between_direct_and_indirect_object_pronouns_in_italian.pdf
    • http://mibegenav.pbworks.com/w/file/fetch/144463065/yvonne_chaka_chaka_thank_you_mr_dj_youtube.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001025f.bin
67260ce3e5e87243583bd80c19c242ca11cdc289a5a0b76059cdbb44ff28d22a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1025F 5584 bytes
font_01_sfnt_off0001154f.bin
0b6ea5cdd1836be3d0b0ceaa549ad190449154d1052d92fa967e5a198812fc48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1154F 11304 bytes

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