Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b4aba7d70badcc…

MALICIOUS

PDF

153.1 KB Created: 2021-04-28 07:10:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 01131dc0ff369fc7d4a42d172e3f6923 SHA-1: edf8b2183f3114b6b9332ed76c37a9b547476246 SHA-256: e9b4aba7d70badcc3ab0c3a2e14c0ebdd5ccb35ab90bc4896aad8037c9d1441d
104 Risk Score

Malware Insights

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

The file is a PDF document that has been flagged by a machine learning classifier and ClamAV as malicious, specifically indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, which is likely part of the attack chain. The document body contains text suggesting urgency, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9872

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://golowaki.ru/strik?utm_term=penultimate+peril+part+2+song PDF link annotation
    • http://nigemutekilum.mypressonline.com/free_printable_blank_bingo_cards_for_teachers.pdfIn PDF document text
    • http://tadurarawi.mypressonline.com/mofogumuwegejolodatox.pdfIn PDF document text
    • https://cdn.sqhk.co/tulovixegoke/uMF5nhh/fuvibenikokumunewalufefa.pdfIn PDF document text
    • https://cdn.sqhk.co/paxajirawegu/GNRhbja/132637225.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxinugokas/kif7ygf/sheldon_whip_sound_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/l4ibids/jak_lost_frontier_ps2.pdfIn PDF document text
    • https://cdn.sqhk.co/posaleren/DbgfgvJ/xumamexikuzilel.pdfIn PDF document text
    • https://cdn.sqhk.co/pepupiribojo/FijgfSC/32244442530.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/92616890096.pdfIn PDF document text
    • https://cdn.sqhk.co/ranetixeba/0Lvqxji/spirit_runeword_flail.pdfIn PDF document text
    • https://cdn.sqhk.co/totafeta/pggjjuS/space_force_logo_meme.pdfIn PDF document text
    • http://gagogepatajebe.medianewsonline.com/alesana_marie_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzevunoxina/zggUrji/carsguide_vw_golf_wagon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dca6e68-78e9-4871-8dd6-da168d4fed94/62875297701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5217cc4-77be-4bd0-92a0-4f8e707072b9/post_civil_war_reconstruction_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae3ac1f8-bad8-4416-bcc0-2c66d54aee70/tufegosebadaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/318d745d-fe66-420d-8a2a-6875d1bc6990/material_safety_data_sheet_bleach_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7caf730-1e60-4a75-9344-ae6825acf1e7/98565695332.pdfIn PDF document text
    • http://vovojoj.atwebpages.com/anthropology_and_ethnography.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fa4eb05-c8f8-4358-b9d2-1a26fe2167bb/how_to_treat_a_dog_for_mange_at_home.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/888c4b72-e7c2-4dfb-9c03-56b050f354ba/bibilisosalom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81c23872-a122-471e-8811-ebda8c86e884/my_kenmore_elite_gas_dryer_wont_heat_up.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bb022ed-57ea-4474-a364-bea2f15706a0/73401267902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb6b019e-07c6-452a-8f96-30d2d9f7ad64/fazagev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f45167d-f49f-4505-8344-8eb7d337c299/vuzanajobotaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfa99037-ca20-4145-a2fe-49d5a6f02a5d/99391521249.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00021c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21C1E 5272 bytes
SHA-256: 05bb35d2877850a482d341505a5d2e6a63241db81441eb882999713bee8f278e
font_01_sfnt_off00022df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22DF5 11772 bytes
SHA-256: 5ac1b1bde469bdd824cc4249b3669800e7ae7cd2ebbbb0677f4a30159d06dc5e