Malicious PDF — malware analysis report

Static analysis result for SHA-256 292d6e65cd8221b0…

MALICIOUS

PDF

46.4 KB Created: 2020-08-22 22:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02bb8fe528d7f438c1eb77fbdda98127 SHA-1: 5b4c8600f0839dbfc69477ade64343c62eff30c8 SHA-256: 292d6e65cd8221b020af69e227052cfb30da32322cc6952f205a22c150792cdc
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm. One prominent URL, 'https://ttraff.com/pify?keyword=creative+beamforming+microphone+review', is identified as a malicious redirector. The document body, though partially corrupted, also contains this URL and other Shopify links, suggesting a lure to potentially malicious content disguised as a review. No scripts were extracted from this sample.

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=creative+beamforming+microphone+review
    • http://files.gooddayhandmade.com/uploads/1/3/2/7/132710779/609832.pdf
    • http://files.awordtothewiseandcommonsense.com/uploads/1/3/2/7/132740958/jubizuvime.pdf
    • http://files.cedartreeproject.com/uploads/1/3/0/7/130738704/vidurilim-lowopow.pdf
    • http://lokigek.oshkoshnebraska.com/uploads/1/3/1/6/131606174/1120747.pdf
    • http://files.livelifewelltherapy.com/uploads/1/3/0/8/130874433/8199104.pdf
    • https://cdn.shopify.com/s/files/1/0435/0532/0088/files/photoshop_2019_crack.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/shrug_copy_and_paste.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/pefopafesikozamaxux.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/98375301895.pdf
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/91070030275.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/saddleback_basic_english_grammar_book_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/1_99_fishing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/6387/7537/files/wivuka.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/39253583984.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/tojit.pdf
    • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/vosenelidebesimodozuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/6701/4297/files/adanga_maru_songs_tamiltunes.pdf
    • https://cdn.shopify.com/s/files/1/0435/7043/0115/files/sc400_for_sale.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a20.bin
2e4a331ec8ef8c620bc00b14c701e91f6fb31d9fd6010d8f2662498cf70ceadb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A20 5320 bytes
font_01_sfnt_off00007c1f.bin
1306a26dbd11bed91253f2ce775294d01c7f6935bcb52060ee97e31c90f86f9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1F 10060 bytes
font_02_sfnt_off00009e4d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E4D 4324 bytes