Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3e0217b14fe31a…

MALICIOUS

PDF

40.1 KB Created: 2020-08-17 13:29:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d922946a537da6f3568c65fe4f3d9b7 SHA-1: f116c9f1ba3084ff98f1472e191b8645a7b7452d SHA-256: 3d3e0217b14fe31aa800ce59e58ad623b5cbf9521b1506990a60792330385b90
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to deliver a cracked software download. The document body and embedded URLs further support this, with one URL explicitly mentioning 'babbel premium apk cracked'. The presence of numerous external PDF links suggests an attempt to manipulate search engine results or distribute content widely, potentially to mask malicious activity.

Heuristics 3

  • 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.
  • 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=babbel+premium+apk+cracked
    • http://wekefup.jaytotha3.com/uploads/1/3/2/6/132680813/6924551.pdf
    • http://guxififit.alihillart.com/uploads/1/3/1/4/131406149/zinobivowumegi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/53808194407.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/famutel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/anglo_japanese_alliance.pdf
    • https://cdn.shopify.com/s/files/1/0437/5828/9045/files/attestation_de_tmoignage_prud_hommes.pdf
    • https://cdn.shopify.com/s/files/1/0447/3192/4629/files/lil_wayne_she_will_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1826/4469/files/zowuwobagifipapijogili.pdf
    • https://cdn.shopify.com/s/files/1/0432/1627/3576/files/schindler_s_list_main_theme_piano.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0850/files/7531928687.pdf
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/essential_grammar_in_use_supplementary_exercises_fourth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/52040248851.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/famanepeburarowujimug.pdf
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/lerosidedufuzopu.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_off00006024.bin
05b8a0c80da295797e1baf3191c46b3ff413767934b92c203fedaaf22ba2bddf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6024 5292 bytes
font_01_sfnt_off00007203.bin
d296b5ef7190fe20050b49fe02b359c406313b7abe264ebd29a8effa35a80eef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7203 9940 bytes

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