Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b088c644f56466…

MALICIOUS

PDF

45.2 KB Created: 2020-07-27 09:29:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79b24f6c5e303469474a96c739446db5 SHA-1: 426c37e50b724e3e30121fec1b85306c9188e941 SHA-256: e1b088c644f56466088062a3342c0838fcdbf47bf75466e469ee254fd5cba130
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits a link farm pattern, with numerous external PDF links hosted on Shopify. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=saaho+cinema+video+songs', which is flagged as malicious. The document body contains seemingly random characters and metadata, suggesting it's not intended for direct user reading but rather to host the malicious links.

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.com/pify?keyword=saaho+cinema+video+songs
    • http://files.ahhsdance.com/uploads/1/3/1/4/131454172/6985172.pdf
    • http://files.greatervictoriaartistdirectory.com/uploads/1/3/1/0/131070845/4a29f79.pdf
    • http://files.nchca.org/uploads/1/3/1/3/131398424/zematejezupem_jegesuzoxog_rojuxiwe_nefanoka.pdf
    • http://files.osteomyelitiscenter.com/uploads/1/3/1/1/131163683/xifabolodi.pdf
    • http://files.ahhsd
    • https://cdn.shopify.com/s/files/1/0433/1021/9422/files/tibofepogib.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/terafewe.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/29470019188.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/79510109808.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6727/files/tikojabugolobigexuwopi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3732/6488/files/misivirip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetuvoveluganimuwejipas.pdf
    • https://cdn.shopify.com/s/files/1/0437/6307/3181/files/78117297225.pdf
    • https://cdn.shopify.com/s/files/1/0435/4637/8404/files/tijikutejujo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/44625808807.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6157/files/nabobekisetiziju.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/99957802062.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1935/files/jenexawidakuzizotuwosi.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_off00007497.bin
92ec0b0e4ee35f0122d13ca137ee196f9d3d5a1fb7e194b15755f214e541f5bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7497 5096 bytes
font_01_sfnt_off000085a8.bin
62da46706ba3e4869ac95b0d1190ed7e89f3593a05232cefbfbe5d03fe5fcb15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85A8 10040 bytes

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