Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f43d83d0490f52…

MALICIOUS

PDF

82.9 KB Created: 2021-03-27 22:57:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 0a4f237528a5df665512cca9683fb210 SHA-1: 8c34d565a75431a6981fb61e572de3a728382099 SHA-256: e2f43d83d0490f52a083f6e612e2e971ade0d0d3da53fc9248fdb6163e89a6b5
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, and it contains an embedded URI pointing to a suspicious domain. The document body, though heavily obfuscated, contains keywords related to computer hardware, suggesting a lure. The presence of an external URI indicates an attempt to redirect the user to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=hp+z440+motherboard+type PDF link annotation
    • https://cdn.sqhk.co/moserusoba/EzjhTnH/jitakedusog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416144/normal_6031cf170c4b1.pdfIn PDF document text
    • http://fapasevusiledap.mygamesonline.org/what_causes_increased_parathyroid_hormone.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/vomiziwupejepetinosuxa.pdfIn PDF document text
    • http://xugaguf.mypressonline.com/tajowum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414175/normal_6056adbcc570e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409246/normal_603342997545f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383915/normal_5fde8994d190a.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/g8ZBtxk/24594228681.pdfIn PDF document text
    • http://vobafoselalulor.mypressonline.com/applications_of_nanotechnology_in_electronics.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420612/normal_5fdc29e860299.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/intermediate_python_for_data_science_datacamp_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12feadb1-51da-4800-bee5-82728ee693a6/86810451656.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d261ff69-f750-4fa8-8c58-a79056cb6311/xipolenakam.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/bittorrent_sync_1._4.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/natimen.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/how_long_is_each_ddp_yoga_workout.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/47778847775.pdfIn PDF document text
    • http://kikanelomer.onlinewebshop.net/xekuzizijapupuxavaduluwo.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/xebitow.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_off0000fa96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA96 5472 bytes
SHA-256: 5d65b0229841ca723eb4e8dc16e40915454b71815f00dae9a09f52a88c3730da
font_01_sfnt_off00010d11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D11 16708 bytes
SHA-256: e87598a4735b350266c010a325b2f1d4b5b5e0725ca68736abdf886412af00f8

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