Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba58d4782219e69b…

MALICIOUS

PDF

43.1 KB Created: 2020-07-10 12:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-07
MD5: baeacd02a9507a04e5174ae866bcdcab SHA-1: e78dcef8b2f259d9d9baf637cb5f939ec23fcfb2 SHA-256: ba58d4782219e69b5247b8407b67fd0ffc097573b5ff024539e5faec2d76e0b6
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious URL identified is https://ttraff.cc/wb?keyword=foxit%20pdf%20apkmirror, which likely serves as a gateway to further malicious content. The document body, though heavily obfuscated, also contains many of these URLs, reinforcing the lure mechanism. The presence of a large number of external PDF links suggests a strategy to distribute malicious content across various hosting platforms.

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.
  • 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.
  • 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.
  • 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.cc/wb?keyword=foxit%20pdf%20apkmirror In PDF document text
    • http://files.tac-teams.com/uploads/1/3/0/7/130740433/belaxusawunu.pdfIn PDF document text
    • http://files.bearcatwrestlingclub.com/uploads/1/3/1/8/131856844/3256546.pdfIn PDF document text
    • http://files.cascadiamotion.com/uploads/1/3/1/4/131453045/1239c31c87b.pdfIn PDF document text
    • http://files.montealea.org/uploads/1/3/1/6/131637763/fuzivomabetunewuxof.pdfIn PDF document text
    • http://files.thesoapshepherd.com/uploads/1/3/1/4/131453526/9efdc03d.pdfIn PDF document text
    • http://files.hollenhundshepherds.com/uploads/1/3/0/8/130874339/mawegiwijusij.pdfIn PDF document text
    • http://files.sustainabilityiscool.com/uploads/1/3/0/7/130739891/a856abfa.pdfIn PDF document text
    • http://files.aquastretchcanada.com/uploads/1/3/1/3/131383977/jaleputof.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://wefapepopez.files.wordpress.com/2020/07/54838790642.pdfIn PDF document text
    • https://zajatopafi.files.wordpress.com/2020/06/jabisifupuxon.pdfIn PDF document text
    • https://legeliwabuki.files.wordpress.com/2020/07/73862320969.pdfIn PDF document text
    • https://panamekeze.files.wordpress.com/2020/06/93144285882.pdfIn PDF document text
    • https://jutufunenuk.files.wordpress.com/2020/06/wepawis.pdfIn PDF document text
    • https://panezurazid.files.wordpress.com/2020/06/belesiv.pdfIn PDF document text
    • https://jisabiwofif966812601.files.wordpress.com/2020/06/26180039046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wijabogose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lezoxaxus.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD2 4628 bytes
SHA-256: c46b1aef22799cac1cdaa3b81a039c2e959777707b9944b65214db0f88e3c6ad
font_01_sfnt_off00007b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B94 10424 bytes
SHA-256: e076b4dfa3b77dd3e490f10dd29c9f950442a2c19fa92b1ad004426f26b6484d

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