Malicious PDF — malware analysis report

Static analysis result for SHA-256 208242fdc20e5a11…

MALICIOUS

PDF

218.7 KB Created: 2021-03-15 05:09:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c41a67b09b255d1abb087f16adc73522 SHA-1: 74e7d215e97d95da5d6b1433f8368c4ed4aa0b15 SHA-256: 208242fdc20e5a11b07b9744fcd7c34d743e99f8e2638a03c5c182ac954f906b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and ClamAV detection indicates it is a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to a school staff directory. The presence of external URLs indicates an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9743

Heuristics 4

  • 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
  • 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/wix?keyword=walter+hines+page+high+school+staff+directory
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/5960867.pdf
    • http://fomilexavekol.22web.org/vigibez.pdf
    • https://regisaralox.weebly.com/uploads/1/3/2/6/132681556/zidobojewiteleje.pdf
    • https://wodekatim.weebly.com/uploads/1/3/1/4/131405934/zupeza_zototosepiponi_xosog.pdf
    • http://bebetadiruj.mywebcommunity.org/what_is_pilot_arc_on_a_plasma_cutter.pdf
    • http://jipolavex.medianewsonline.com/kovedagewo.pdf
    • http://rigoditibalun.mywebcommunity.org/bafokirega.pdf
    • https://wumefabifu.weebly.com/uploads/1/3/4/8/134888429/da057.pdf
    • http://tozaworewinox.mywebcommunity.org/how_to_create_stored_procedure_in_sql_server.pdf
    • https://jokazetesolibut.weebly.com/uploads/1/3/5/3/135314514/b94de68f2b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/9ade00d6-b639-4cf4-b7e7-69335b22c067/gizadegiwiradekarokudi.pdf
    • https://uploads.strikinglycdn.com/files/34dfc138-0ea5-4015-9e86-29ad0a502c97/how_much_is_a_roland_piano.pdf
    • https://uploads.strikinglycdn.com/files/0d89482a-b183-4171-81fd-e82684b2f133/what_is_the_importance_of_waste_management.pdf
    • https://5c51e3d7-2896-491e-a255-1b002e356b93.filesusr.com/ugd/5b6ce5_2092886e5e7946d3becfa11a45c7ce8e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d6a73d71-a44d-48cd-aa26-7a71dba41283/17_golden_sonic_fnas.pdf
    • https://uploads.strikinglycdn.com/files/ab8e97b6-7e54-448f-bbe5-8e5cffffd8c6/nisuwetipapobositi.pdf
    • https://uploads.strikinglycdn.com/files/abada948-9b67-4a58-991e-b395ae3803e0/sap_ewm_online_classes.pdf
    • https://29ce6865-365c-47c4-9f0a-635d6f965865.filesusr.com/ugd/0d6b77_852179e8706046919941e3a4f0f904d5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/59591b72-e81c-4585-9147-0931de02d9ec/34569286605.pdf
    • https://c01188fd-d8af-4b86-846b-090f7ecd58d8.filesusr.com/ugd/9058e5_849de0fb1fbc45f5b78182750ebebbe3.pdf?index=true
    • http://nupudanotagudot.rf.gd/learn_korean_guide.pdf
    • https://uploads.strikinglycdn.com/files/3a00dcb8-ba33-46d7-849b-ec879d84c3a6/maximum_ride_schools_out_forever_free_download.pdf
    • http://ziwejozaz.epizy.com/coulson_and_richardson_volume_6.pdf
    • http://wumikexenuge.epizy.com/67703067797.pdf
    • http://sejojoxo.epizy.com/xifoseze.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031068.bin
98694661d37d81061c5455a28da6e87b76caa117560144940bb43227521829d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31068 5320 bytes
font_01_sfnt_off00032283.bin
d2be162125ab392257e632aa6709292c3b4fcf527a51337b97e1aa2f237a570c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32283 12472 bytes
font_02_sfnt_off00034d09.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34D09 4324 bytes

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