Malicious PDF — malware analysis report

Static analysis result for SHA-256 180e77e198116402…

MALICIOUS

PDF

68.5 KB Created: 2020-12-24 10:11:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 0d21aeb0c1105af81d2f87164c3b373a SHA-1: 6953174c87835b23a47fa015dc1fe8c95bbbd930 SHA-256: 180e77e19811640244708d17a19522e971599352579cae23261df76de737e5db
66 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, with one specifically pointing to a URL containing 'gartner+magic+quadrant+siem', suggesting a lure for information. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high number of links on disposable hosting, further supporting a malicious intent to redirect users. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffset.ru/strik?utm_term=gartner+magic+quadrant+siem PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382413/normal_5f953fcb935ba.pdfIn PDF document text
    • https://cdn.sqhk.co/wetotuluxe/MaAihzS/mugofafo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381766/normal_5fc6cb73a2162.pdfIn PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/7836191.pdfIn PDF document text
    • https://zorivaleguzovul.weebly.com/uploads/1/3/4/5/134596353/lekuwuwunogoxat.pdfIn PDF document text
    • https://rugurujumififez.weebly.com/uploads/1/3/1/3/131384765/3945403.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467573/normal_5fcc9f8e8f587.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446789/normal_5fd5f86bd89c5.pdfIn PDF document text
    • https://nuzepobijane.weebly.com/uploads/1/3/4/8/134885792/2136513.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/pomaxa/minecraft_creeper_face_printable_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48d363bc-7d73-4b64-9037-448030594487/bobewikemamizizi.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_off0000ce54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE54 5384 bytes
SHA-256: 34345468fc669182519aba6b3ff79a3fdd3afa38d465680fdcaa1264d32d5161
font_01_sfnt_off0000e082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE082 10824 bytes
SHA-256: e276d648ca765aa6d9500b16a4a423d0b7023bfef58b1b08f6d3abe01ad2cf62