Malicious PDF — malware analysis report

Static analysis result for SHA-256 58da9efa3054a885…

MALICIOUS

PDF

41.9 KB Created: 2020-08-05 10:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ecfb441ab9a062c2ef465ae0f0e1627 SHA-1: 57205a0a13e45017dc311a5e44e6019a648467e0 SHA-256: 58da9efa3054a88543e87b247e60d24e97542a5adee1c8ca2e384265a751fb1b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to ttraff.com. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting a lure to trick users into clicking it. The primary intent appears to be directing users to malicious infrastructure via a deceptive link.

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=billing+system+project+documentation+pdf
    • http://files.whitneylawrence.com/uploads/1/3/1/8/131872286/wetitasomum.pdf
    • http://files.it-starts-here.com/uploads/1/3/1/4/131483305/5569220.pdf
    • http://files.oritahitivc.com/uploads/1/3/0/8/130814411/xerigiduzizowip_xewinovinodi_novekagif_xudaxogix.pdf
    • http://files.namifarnorth.org/uploads/1/3/1/4/131453111/bc478430144ce58.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lagikemirulufuwetore.pdf
    • https://cdn.shopify.com/s/files/1/0439/4123/2795/files/88207710053.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/89230689690.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/smallville_save_me.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/wizareta.pdf
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/tone2_rayblaster_vst_crack.pdf
    • https://cdn.shopify.com/s/files/1/0447/9424/9377/files/biceps_tendonitis_stretches.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/96698259704.pdf
    • https://cdn.shopify.com/s/files/1/0433/4845/9675/files/kajawisefowewemo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/mabuwe.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_off000064e6.bin
0de109e1eb0e3429d6e57a1f4e494df8986de8429bdf462d7b713c8e941ebadf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64E6 5704 bytes
font_01_sfnt_off0000784e.bin
7d9d6fc14cab8118167b0af2b911b9ecc740bcf16da63d3db4921652ea451ef4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x784E 10084 bytes

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