Malicious PDF — malware analysis report

Static analysis result for SHA-256 90220a28daba6821…

MALICIOUS

PDF

86.4 KB Created: 2021-03-21 03:41:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c1133eccf77b842fe3e92d049441b4f SHA-1: e3d1a5318cb27a02410d98e9ce79e42657781cd7 SHA-256: 90220a28daba682140b6326b4d0ec44f3195230873f273156220444c5dd4f0ab
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dafemum.ru/strik?utm_term=perdona+si+te+llamo+amor+2
    • http://muxiguf.iblogger.org/how_to_program_clicker_brand_garage_door_opener.pdf
    • https://tonawonigavima.weebly.com/uploads/1/3/5/3/135345065/pobuveviwawofig-fixajuguwinenom.pdf
    • http://gezilobogobig.22web.org/dimusubagiriwurasawe.pdf
    • https://cdn.sqhk.co/guwezasov/iOgcJih/govaxanijoga.pdf
    • https://goginaderexikez.weebly.com/uploads/1/3/5/3/135306094/xusex-wexeketegovebe-befejesu-guwodosonoj.pdf
    • https://vojumemij.weebly.com/uploads/1/3/4/4/134473557/ce567.pdf
    • https://cdn.sqhk.co/vegedusovo/dP0ijby/wedojiwut.pdf
    • https://nikubasixuza.weebly.com/uploads/1/3/0/7/130738960/5319681.pdf
    • https://tifimiwarefimi.weebly.com/uploads/1/3/4/8/134895051/4635086.pdf
    • https://lefipejime.weebly.com/uploads/1/3/4/6/134668800/lodazaxologodejis.pdf
    • https://kofasarafafe.weebly.com/uploads/1/3/5/3/135390193/renex_rivozavedopa.pdf
    • https://senakubedezozi.weebly.com/uploads/1/3/1/6/131606366/gilekusaribusikur.pdf
    • https://cdn.sqhk.co/pusuvizodez/Rbii4gc/13103032122.pdf
    • https://dixaxotobaba.weebly.com/uploads/1/3/4/3/134377978/7582486.pdf
    • https://cdn.sqhk.co/molodomo/jdSibhg/motorola_moto_g_power_wireless_charging.pdf
    • https://zuriloteva.weebly.com/uploads/1/3/4/6/134623588/puripe.pdf
    • https://cdn.sqhk.co/donaxewon/HHjhgfv/devlet_opera_ve_balesi_ankara_bilet_al.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pivujumurabaf.epizy.com/71470316961.pdf
    • https://s3.amazonaws.com/nimuwet/tamil_calendar_2019_january_free.pdf
    • http://sokagozu.rf.gd/strong_acids_list.pdf
    • https://s3.amazonaws.com/bisiku/jumozupatililunuzos.pdf
    • https://s3.amazonaws.com/wefemabeni/rubupanuvozumobakedogaz.pdf
    • http://jamovame.epizy.com/cost_control_techniques_in_manufacturing_companies.pdf
    • https://s3.amazonaws.com/fevobelijogal/best_android_emulator_for_pc_pokemon_go.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_off0001118c.bin
faf0bde2579cf9af40fcca8331906d098439225e20504117661b6a807dd60c10
pdf-font-stream PDF embedded font (sfnt) at offset 0x1118C 5104 bytes
font_01_sfnt_off000122ce.bin
64642b03b7807831592d5bfc63da88446e54b8211c17835a92d740d1b3962560
pdf-font-stream PDF embedded font (sfnt) at offset 0x122CE 12480 bytes