Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0b7a9f3cdf2117…

MALICIOUS

PDF

69.8 KB Created: 2020-08-02 23:36:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1480170f5dd87569238e09282b82ccee SHA-1: 28ad6b08cf7783a71d0e8c2fd595be2c2e4d49a9 SHA-256: ab0b7a9f3cdf21176d6fc7692bc184c48bb0d968cdc59b05e91cb688a31e86be
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=windows+7+enterprise+activator'. This URL is presented within the document body, disguised as a lure for a Windows 7 activator. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on shopify.com. The presence of a malicious redirector and the deceptive lure suggest the primary goal is to direct users to a malicious site for further exploitation or credential harvesting.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=windows+7+enterprise+activator
    • http://files.bethuneandson.com/uploads/1/3/2/8/132814463/a2b482f7087.pdf
    • http://files.vahdatlab.org/uploads/1/3/1/3/131380181/6381347.pdf
    • http://files.blossomempowerment.com/uploads/1/3/1/8/131871518/1032778.pdf
    • https://cdn.shopify.com/s/files/1/0428/7194/7423/files/97033444789.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8685957786.pdf
    • https://cdn.shopify.com/s/files/1/0432/1941/9291/files/74563678399.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/itil_foundation_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/71937902922.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/mixek.pdf
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/ridugewenopatulajuwoju.pdf
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/migos_one_time_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/tigunatirobom.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/pavopedamowij.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_off0000d342.bin
6df754f2f5c4c8afdf225d7cf2f5c50bdd78fd6bf377d4e5cab926978f739593		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD342 5280 bytes
font_01_sfnt_off0000e564.bin
af1ecb04707ef61e06f207d4720ebffe808cc5138483611aa6025bf5fbab5975		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE564 10792 bytes

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