Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec345e4f62ec16fe…

MALICIOUS

PDF

70.0 KB Created: 2020-11-16 17:11:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 232a170077ba9e00de540ae61cfa5435 SHA-1: 25b02f7d9ddfea98a453ce607037363fee682ecc SHA-256: ec345e4f62ec16fe42de676dd61565ac1bf28873714baf3460750c8a2e5f9824
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an invoice-themed lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://traffnew.ru/aws?utm_term=airtel+mitra+recharge+app PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383340/normal_5fa03e39d2210.pdfIn PDF document text
    • https://rosuxemu.weebly.com/uploads/1/3/0/7/130776582/37652f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_5f977815466cc.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/3590787.pdfIn PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/zuvikezap_xokutokobabadi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449774/normal_5fae412dce6a1.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/9d0838e0-8d8e-4915-b706-eafb8b789331/tiroxutadubewufafipexi.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/jbl_charge_3_bluetooth_speaker_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c745a182-1453-4fbb-bf7e-482b665f0c68/70590378487.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/cheat_codes_for_pop_slots_casino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0481ae4e-0cfa-4238-98b5-5c054882a2de/xemipabivoman.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA76 5160 bytes
SHA-256: 2f51d82a6b3fc0ea55ffc9d6ef009bc979137c124677e0ca3ba6a8b8e966ec12
font_01_sfnt_off0000dbcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBCB 1936 bytes
SHA-256: 73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190
font_02_sfnt_off0000e50e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50E 11228 bytes
SHA-256: 208e4e357c1e8c1d3600ca54aee1b69449e2ff7caa82dda5958125b7c09e6585