Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c946c025bbc143…

MALICIOUS

PDF

49.3 KB Created: 2020-08-31 05:17:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b318aed961cf9afc311302e4b4382ee5 SHA-1: 3e69eca80c22af55f7077f8cc18eb748d1ab27bd SHA-256: 07c946c025bbc1431ee59afa749c74bfba003323b026512f3a8dce65c6a80041
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link, suggesting a phishing or scam attempt. The document body explicitly mentions 'Dumbo movie download in tamil' and includes a URL that is flagged as a malicious redirector. The presence of multiple embedded links, many pointing to Shopify, indicates an attempt to distribute content or redirect users to potentially malicious sites.

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.ru/wix?keyword=dumbo+movie+download+in+tamil
    • http://fedorahosted.org/lohit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0438/2582/3904/files/kaxejinejojemipewibunof.pdf
    • https://cdn.shopify.com/s/files/1/0432/7964/6878/files/ribagegisozoxexigojamu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2211/3192/files/58290608480.pdf
    • https://cdn.shopify.com/s/files/1/0440/6509/5845/files/35437179289.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/xobirifalapoxaxalikid.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d67ec2f2de2477b96a9c3a4be8db334.pdf
    • https://static.usrfiles.com/ugd/01e791_7495a0125d5b4642997364ecfbc33900.pdf
    • https://cdn.shopify.com/s/files/1/0437/7631/1453/files/prawn_suit_depth.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/navulerefidije.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/15494280203.pdf
    • https://cdn.shopify.com/s/files/1/0428/5156/5724/files/68325002115.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000648a.bin
662d6ba5955f67c72b5df2f62ec28593417a4ed7c4490a10d587640bf175e29d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x648A 14108 bytes
font_00_sfnt_off00005403.bin
00b06bb57e65ec816270977e6cfd490699a12a8f9d290cfdd11796819132d262		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5403 4872 bytes
font_02_sfnt_off000086b7.bin
f61201db492e95a51c150076fa73c5b2fed09996469ec6b8d8129d39229d3aa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B7 10364 bytes
font_03_sfnt_off0000aa34.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA34 4324 bytes

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