Malicious PDF — malware analysis report

Static analysis result for SHA-256 40403046e7ce0f3a…

MALICIOUS

PDF

70.9 KB Created: 2021-04-02 12:22:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b608be91dced0a239a8c57bce155f135 SHA-1: 05f73e55db72c0378cbda3f83494f3d0829040de SHA-256: 40403046e7ce0f3a826a00fd4e67f884a02c295cacd3abda5b05472d11ce8ecc
154 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are disguised as book downloads. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of links, suggesting a tactic to distribute malicious content or engage in SEO manipulation for phishing. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a lure to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7003

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://jottigo.ru/award?keyword=maths+practical+book+for+class+10+cbse+pdf
    • https://kenawogerawe.weebly.com/uploads/1/3/4/5/134593039/7939966.pdf
    • https://duxedakaba.weebly.com/uploads/1/3/4/8/134899299/kafikozat.pdf
    • https://cdn.sqhk.co/givesaxi/fGqMChh/251976273.pdf
    • https://watinamubil.weebly.com/uploads/1/3/0/8/130813586/rabinetixejowe_limisoromesopaj_betominaporo_pusejugumab.pdf
    • https://cdn.sqhk.co/zipodumup/bjgSuph/zelda_parallel_worlds_remodel.pdf
    • https://nukusiluvo.weebly.com/uploads/1/3/4/6/134612364/1442312.pdf
    • https://wedabivugexum.weebly.com/uploads/1/3/0/9/130968949/fiketadifoba.pdf
    • https://pujakopevu.weebly.com/uploads/1/3/2/6/132682627/4402067.pdf
    • https://cdn.sqhk.co/zidenesek/Z5Ltpjd/wolf_girl_and_black_prince_episode_7.pdf
    • https://cdn.sqhk.co/litawoxelida/gigfUfg/pps_label_template_14_per_page.pdf
    • https://berisojelo.weebly.com/uploads/1/3/0/8/130874511/bobixisobo_gomamokagemusog_vositenidubawek_fovejuxeziwi.pdf
    • https://cdn.sqhk.co/fasisela/Xhb7hfo/cat_runny_nose_treatment.pdf
    • http://xovijezup.mywebcommunity.org/97412460247.pdf
    • https://cdn.sqhk.co/rarukaboz/ji1iejg/wijaniriginitop.pdf
    • https://farunigi.weebly.com/uploads/1/3/4/7/134716297/sobigojiwit_nululu_jofoxuxewuxum.pdf
    • https://wazexexa.weebly.com/uploads/1/3/5/3/135305699/d73f4ad19b3b5d.pdf
    • https://cdn.sqhk.co/tamaladafa/Bjj6ahh/tabletop_simulator_carrom.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b2ff332f-4c28-4141-86dd-165cc8d2988a/how_to_train_a_military_dog.pdf
    • http://kisalonokexiwi.atwebpages.com/livre_apprendre_l_allemand.pdf
    • https://uploads.strikinglycdn.com/files/22c75186-7fa7-4a9c-9f80-6d4a41c21449/can_you_cook_bacon_in_a_ninja_air_fryer.pdf
    • https://uploads.strikinglycdn.com/files/16336bd0-dd4b-4e59-9c18-62b5c679519e/2000_jeep_grand_cherokee_limited_owners_manual.pdf
    • https://uploads.strikinglycdn.com/files/63cbdcc7-fd02-4b2b-baee-9b2d5311d1f7/ross_stores_opening_back_up_near_me.pdf
    • http://ziwivazud.onlinewebshop.net/66311500558.pdf
    • https://uploads.strikinglycdn.com/files/99be9828-3a86-4a18-b41f-f7dbffd17c00/jotaguxijisotupepe.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000105d6.bin
930babbb7e806995fad29ccccc3337390b87df40364ce9958cb828a0ff43c16c
pdf-font-stream PDF embedded font (sfnt) at offset 0x105D6 5644 bytes