Malicious PDF — malware analysis report

Static analysis result for SHA-256 322f9967973fd034…

MALICIOUS

PDF

93.8 KB Created: 2021-05-24 23:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c17c22f1f6a1d02dec049d289ba8a42f SHA-1: aa5af096a92719101f4c09ac290435f88e1b9dd1 SHA-256: 322f9967973fd034806bb7da732a62a77da37be72f2da9dcaa3fda1715f39517
136 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains embedded URLs, one of which, 'https://resalured.ru/strik?utm_term=imran+khan+satisfya+mp3+ringtone+free+download', is associated with the phishing attempt. The presence of external URIs and the ML/ClamAV detections strongly suggest a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://resalured.ru/strik?utm_term=imran+khan+satisfya+mp3+ringtone+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403266/normal_60057742ecf08.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478383/normal_60087dd0c7c48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408172/normal_5fe299af9ffaa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479214/normal_5fd6d10cccd59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449990/normal_5ffa73edc6fa1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uplIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/xeminulipiba.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/do_your_best_quotes_for_students.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/chinnari_mutha_kannada_song.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/vumegugemogegogati.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/lenibub.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/the_little_prince_online_shop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5423049b-5eee-41dc-98b8-eed8eb34eca9/warcraft_3_remastered_review.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/sawogofaduxonusavadonoma.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/2013_chevy_traverse_electrical_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/breitling_aerospace_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/57629339173.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/rip_curl_watch_repair.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/ladesamegewituxas.pdfIn macro / runtime command snippet
    • https://s3.amazonaws.com/pazatuv/6239673655.pdfIn macro / runtime command snippet
    • https://s3.amazonaws.com/moduxanakuri/99885388818.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/37011191664.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3087bec-b46f-47ad-948f-13bebc50573f/27676241220.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00011c54.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11C54 3776 bytes
SHA-256: ce5049670ce208aaaeb0fc88854a08e0e8daab09426d90a5a84454e40cedca3a
font_00_sfnt_off0000eda7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA7 6588 bytes
SHA-256: fa72874b8c381873b432d3b5cea9ecddba20f04e8e1c9face7d560df1136061a
font_01_sfnt_off0000fdf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF0 2988 bytes
SHA-256: 991aedf0fd0dd49657b0b1af788d5902e0ca9741571727e475d0942e72673e1e
font_02_sfnt_off000108a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A0 5816 bytes
SHA-256: 2582957dc2a1c67b221257d362c407c240d4990e9c57d2c5031e3d098fea1b1f
font_04_sfnt_off00012b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B5E 11072 bytes
SHA-256: cd33b6df5154b9695830bd22e29967a8186ab086da0af12fd40cd1c0748bb54b
font_05_sfnt_off00015170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15170 16508 bytes
SHA-256: fd0c5b52d4156838df7a8563aeef96cba9cc2ee33798b100ea4cd8a497043532

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