Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e8795707842954…

MALICIOUS

PDF

34.3 KB Created: 2020-08-09 07:36:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b81f7891ec52ec834857eff8652d019a SHA-1: c98418f4e991ce0219e00195253e80b0c9c22f34 SHA-256: 48e879570784295443e03a00857b4b375e6ecc0770cb66b670543d469627a118
150 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing malicious redirector links, specifically pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on 'cdn.shopify.com'. The ML classifier also strongly indicated maliciousness. The embedded URLs suggest an attempt to lure users to potentially harmful sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=golper+boi+pdf+download
    • http://widim.madisonmedium.com/uploads/1/3/1/4/131408899/7749567.pdf
    • http://povud.ballycastlehistory.com/uploads/1/3/1/1/131164250/7491149.pdf
    • http://vemira.anchorchristianacademy.org/uploads/1/3/2/6/132681352/219976.pdf
    • http://files.rotboxrustorations.com/uploads/1/3/1/3/131397987/2849910.pdf
    • http://gokewo.suitlandhsfeasibilitystudy.com/uploads/1/3/1/4/131437778/c203a7e465.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/naleg.pdf
    • https://cdn.shopify.com/s/files/1/0436/5071/1705/files/nightingale_pledge.pdf
    • https://cdn.shopify.com/s/files/1/0434/3706/4344/files/88335256266.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/53058469992.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/karl_marx_biography_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0159/3505/files/michael_lewis_boomerang.pdf
    • https://cdn.shopify.com/s/files/1/0440/0365/5830/files/fallout_4_dlc_load_order.pdf
    • https://cdn.shopify.com/s/files/1/0429/5560/4121/files/tigasodemogikejokitepok.pdf
    • https://cdn.shopify.com/s/files/1/0430/6105/1546/files/34034264541.pdf
    • https://cdn.shopify.com/s/files/1/0437/4321/5767/files/sebavala.pdf
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/18508079735.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/tokokexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2975/files/rativumixorif.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_off00004883.bin
3c7f4573951fad2008c71184e4f8f149b4cca8ad5aea7c4a6628c4b41110b982
pdf-font-stream PDF embedded font (sfnt) at offset 0x4883 5120 bytes
font_01_sfnt_off00005a0e.bin
565b2833116d8ee7eabffb3ba62182c02b240ed642492269469f218aef0db70b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0E 10100 bytes