Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2eb2f409c9716ac…

MALICIOUS

PDF

48.7 KB Created: 2020-08-25 16:41:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 620958d030ce469fac87870cccb26f64 SHA-1: bfe258edb06932823f15414c55ee443f96ed3f3b SHA-256: a2eb2f409c9716ac024dbf73f265e0b0a2f282382cc10c65de1b9184d5710aa4
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 pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many of which are to Shopify, likely for SEO manipulation. No scripts were extracted from this sample.

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=agenda+word+template+2019
    • http://files.plainsedgechiropractic.com/uploads/1/3/2/3/132303068/zusudanegiburu_wijepesuxit_nakotedug_zuxut.pdf
    • http://files.ki-logistics.com/uploads/1/3/1/4/131407921/suruwedavodawofi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/koresozi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0428/4894/4295/files/mamizivibemexuvekazelevu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7790/1214/files/bitbucket_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/sql_database_administrator_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/diwujamim.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/nugap.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/jepezuzexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/xadevimusunopakivew.pdf
    • https://cdn.shopify.com/s/files/1/0454/8503/1576/files/automated_guided_vehicle_types.pdf
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/48_country_code.pdf
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/berg_balance_scale_interpretation.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/
    • https://cdn.shopify.com/s/files/1/0428/4894/4295/files/mamizivibemexuveka

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007eaa.bin
1e2794f35a19a23e2a7d9b536331f91fcf772810148ce4f28a59b949144827ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAA 5664 bytes
font_01_sfnt_off000091f4.bin
74da6a55cd5c5b2303a6a21e7db2296b6c49dab8d6c695ef8376e6ab438defd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91F4 10520 bytes

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