Malicious PDF — malware analysis report

Static analysis result for SHA-256 74afb8279a322147…

MALICIOUS

PDF

84.0 KB Created: 2021-04-19 06:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57ec57427d3f56ce6aed6a68db3fd4a7 SHA-1: 8445b8361e03a6b8fe9283fd3426483cb28660c1 SHA-256: 74afb8279a3221470620d139178914ee6c9184c8d63c8822ed42ef9577105628
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and ClamAV detection confirms its malicious nature. The ML classifier also flagged it with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ponafet.ru/strik?utm_term=can+you+play+super+mario+on+switch
    • http://zalavsky.ru/what_can_i_do_with_a_psychology_degree_in_the_medical_fieldtofsb.pdf
    • http://form-lnstagramcopyrightservice.com/7198430937768ruu.pdf
    • http://wiinorama.space/91314693374tera0.pdf
    • https://cdn-cms.f-static.net/uploads/4389355/normal_60628628032be.pdf
    • http://cosmeteca.com/loxuziw2vdiz.pdf
    • http://poroda.site/18542432949hu934.pdf
    • http://azakalaza3.xyz/49994128024ef73x.pdf
    • http://clientbluebadge.com/rumpelstiltskin_story_read_online6mc8r.pdf
    • http://trychambre.xyz/50143351389ib3ft.pdf
    • https://static.s123-cdn-static.com/uploads/4417226/normal_5fc7d6aa3b44f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/0697f026-6cfb-4615-8ab2-dda1e40e25b3/whirlpool_quiet_partner_ii_dishwasher_parts_diagram.pdf
    • https://uploads.strikinglycdn.com/files/b3723315-5fdb-4269-b207-0c4424b9fa26/can_poor_countries_become_rich.pdf
    • https://s3.amazonaws.com/guwutivupudutu/organizacion_de_una_empresa_pequea.pdf
    • https://s3.amazonaws.com/vukusa/how_to_draw_a_dog_paw.pdf
    • https://s3.amazonaws.com/mupukesunobaga/dexuruzizavewedaduna.pdf
    • https://s3.amazonaws.com/fedufiporara/97178604164.pdf
    • https://s3.amazonaws.com/megodipewukitoj/99957633668.pdf
    • https://uploads.strikinglycdn.com/files/5085cb48-b814-42b8-b6e7-292ffcbdd239/xobivolonez.pdf
    • https://uploads.strikinglycdn.com/files/b7301988-fbea-43dd-ae32-44aef08a8f56/diamond_cutter_sutra.pdf
    • https://uploads.strikinglycdn.com/files/de9be98f-5e46-4da8-be42-8444501ec4b7/what_did_signing_the_declaration_of_independence_mean.pdf
    • https://uploads.strikinglycdn.com/files/e21bf117-9051-4b06-81cd-9a4b9c5f03d8/22243161995.pdf
    • https://uploads.strikinglycdn.com/files/d675b495-ccb6-4946-a96f-c9e6c3ca03cd/jubufisejan.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_off0000fdec.bin
0775aec1756662e8711d507a79f109b35ddf47bb180a04df7e9a782b3ae9c4fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDEC 5272 bytes
font_01_sfnt_off00010fc6.bin
15db06b8f0b922b68b39991e77269040c067ae654857947f7a367289a9b8ce68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FC6 10732 bytes
font_02_sfnt_off00013463.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13463 4324 bytes

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