Malicious PDF — malware analysis report

Static analysis result for SHA-256 009833496decd291…

MALICIOUS

PDF

42.8 KB Created: 2020-10-12 13:22:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b409e537ed87fc9d1f700560fc147d7b SHA-1: 4125a313f0ce7184d95f82828d0a2653e92b3fde SHA-256: 009833496decd29156dd5f70d8299b2f59437369c5862cbf5ac137e56780c7d7
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document contains a malicious link that redirects to a lure for downloading a game. The ML classifier and the critical heuristic firing for a malicious redirector link strongly indicate malicious intent. The document body, though heavily obfuscated, contains the URL and text related to the lure, reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://ttraff.me/pify?keyword=wwe+wrestling+game+download+for+android
    • https://site-1042625.mozfiles.com/files/1042625/vusuneru.pdf
    • https://site-1039885.mozfiles.com/files/1039885/60156887577.pdf
    • https://site-1036684.mozfiles.com/files/1036684/fugixiraxibitofomu.pdf
    • https://site-1037048.mozfiles.com/files/1037048/8561241972.pdf
    • https://site-1039631.mozfiles.com/files/1039631/21967951236.pdf
    • https://site-1042603.mozfiles.com/files/1042603/fozajusi.pdf
    • https://site-1039324.mozfiles.com/files/1039324/dabuwosaxebadeluletul.pdf
    • https://site-1038478.mozfiles.com/files/1038478/37832180363.pdf
    • https://site-1039297.mozfiles.com/files/1039297/subexasomiwisolejeto.pdf
    • https://site-1048208.mozfiles.com/files/1048208/73990015761.pdf
    • https://site-1043794.mozfiles.com/files/1043794/nakixovirasuforuzasavuv.pdf
    • https://site-1036695.mozfiles.com/files/1036695/zovefisusus.pdf
    • https://site-1038304.mozfiles.com/files/1038304/50609876222.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/20577827-f6a9-439c-993a-06365564702c/punafoxawofezazokepas.pdf
    • https://uploads.strikinglycdn.com/files/8fed4016-d1f3-44de-ac94-039997810f76/gamugegaderog.pdf
    • https://uploads.strikinglycdn.com/files/361f171e-7b62-4c8e-9c56-60acac82dde8/20841861624.pdf
    • https://uploads.strikinglycdn.com/files/23f5ef92-ced7-4baa-ba61-08e3465ce948/zuwizadoritotojanulevej.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000677a.bin
303110a9da9f9ced6ab06ce363bbc8720c7be0a8c2a7f2554a406f60a9009ee6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677A 5332 bytes
font_01_sfnt_off00007998.bin
5735a191990b1ac6fecc1e5a88ebd94f047248678cad6e053a8028504519d845		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7998 10740 bytes

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