Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff76f32256a488c2…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 10:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11d73f9d7ceb238bc490dc522dc3bbd6 SHA-1: d4ecd2d75500bff5e77450226b6bc30f0b95bdee SHA-256: ff76f32256a488c2aedca1e0d7649807f63f45402eb325d1a46a9730964641b5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, including a critical redirector link to 'https://ttraff.cc/pify?keyword=owners+manual+pdf'. This suggests the document is designed to trick users into clicking malicious URLs, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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://ttraff.cc/pify?keyword=owners+manual+pdf
    • http://files.colangelowine.com/uploads/1/3/2/6/132681826/dalupozojizap.pdf
    • http://files.piasiren.com/uploads/1/3/1/4/131408942/meweruw_bimowuro_dovofigebodope.pdf
    • http://files.sustainablesynergy.com/uploads/1/3/0/7/130739564/gelodibatemoma.pdf
    • http://files.cornhoartist.com/uploads/1/3/1/4/131407980/3265051.pdf
    • http://files.ragdollkittensale.com/uploads/1/3/0/7/130775197/sudavategiduwaz_rusanesosa_dodukijogubalit.pdf
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/29797256687.pdf
    • https://cdn.shopify.com/s/files/1/0437/6382/6849/files/bridesmaids_duties.pdf
    • https://cdn.shopify.com/s/files/1/0434/7976/1061/files/lifesidegerukag.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/english_grammar_auxiliary_verbs.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/metepinik.pdf
    • https://cdn.shopify.com/s/files/1/0433/4367/5560/files/xenunopojalogozukopo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/vijelilesofe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9078/7996/files/famubisaxifuguginido.pdf
    • https://cdn.shopify.com/s/files/1/0432/2715/2539/files/jewikorinodisimuradifiza.pdf
    • https://cdn.shopify.com/s/files/1/0431/9700/5981/files/xaluba.pdf
    • https://cdn.shopify.com/s/files/1/0431/8216/2084/files/poboziforuti.pdf
    • https://cdn.shopify.com/s/files/1/0444/0604/6886/files/english_for_business_communication_free.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006357.bin
79ef8a7edca320a0e000b6b3324c732172d90538fa2f0c4f32f21ca7b5bfba7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6357 5304 bytes
font_01_sfnt_off00007558.bin
9f96a602ab75bccb7c43912c4207566c5226b390dd55988c039f55d9a829b0a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7558 10468 bytes

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