Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aeabc556608ac5e…

MALICIOUS

PDF

35.0 KB Created: 2020-10-31 13:39:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: baa77a3ce6da56691fa1aea7d96a8546 SHA-1: 5343e783ba1be27383bf996bab282ccf5c419191 SHA-256: 2aeabc556608ac5e45c3add779346a1552d49da6a3b7b5345da07b2627cb6aa0
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to search queries for vehicle parts, suggesting a lure to disguise the malicious links. The presence of a malicious redirector indicates an attempt to lead the user to a compromised or malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cctraff.ru/123?keyword=2001+jeep+4.0+rebuild+kit In PDF document text
    • https://bejivuvepezera.weebly.com/uploads/1/3/4/4/134437422/ximujifir.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/9232432.pdfIn PDF document text
    • https://retixuzekuzexaw.weebly.com/uploads/1/3/4/3/134375726/zibiwugesiludomabu.pdfIn PDF document text
    • https://timonuwek.weebly.com/uploads/1/3/4/3/134383578/2e0a9c.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/bawalidamovidud/betrayal_legacy_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/april_marie_tinsley.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/napavine_school_district_staff.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/modelava.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/new_oxford_picture_dictionary.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/vepaxoxabuxukurot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e45bed93-2fa1-4753-9ac3-73a05a6e31e8/umberto_eco_on_beauty.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/dabelajezedufubuwuke.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/sixezamod.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/bowupotupasowek.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/kamisigakuzaxumaliporun.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_off00004a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A8B 5196 bytes
SHA-256: 8a3246115633b908422c583c91196bce64340fab5961a04679dad2f0eccf15da
font_01_sfnt_off00005c55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C55 10308 bytes
SHA-256: 219ad63ad4e7349c7b4d590bce78fd19f46df84efd511eeb6349bd44f3abbebb

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