Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a2c8f7ebd25edf1…

MALICIOUS

PDF

49.5 KB Created: 2020-08-03 17:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 761bae584496c9e8b2fbec5ba98533cb SHA-1: 23f34bcee5ccfe7b4851824567dae3419e9cfcc2 SHA-256: 9a2c8f7ebd25edf186d2909b2e3cb4fd318f6a2b170be1413e4936f7a1000ad5
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text related to a job description and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is https://ttraff.com/pify?keyword=reliability+engineer+job+description+pdf, which likely leads to further malicious content.

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=reliability+engineer+job+description+pdf
    • http://files.highway417-aviationtohuntclub.com/uploads/1/3/0/7/130775470/samel_botoz.pdf
    • http://files.iuoelocal609.org/uploads/1/3/0/7/130776327/giwomevolixosu_zovonuribasex_saxewiduban_vupekedotaru.pdf
    • http://kidaxijot.firesideballoonsforsale.com/uploads/1/3/1/3/131381612/verosuwo-sijakobomuwe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/mezigulusajoxewukideruwap.pdf
    • https://cdn.shopify.com/s/files/1/0436/8056/3350/files/jefixemobowo.pdf
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/gepalowivisu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7280/5277/files/97452467693.pdf
    • https://cdn.shopify.com/s/files/1/0434/4528/9127/files/7202745305.pdf
    • https://cdn.shopify.com/s/files/1/0435/7141/3151/files/pumapalutowebefekopuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/4395/4594/files/93202277138.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/7503596004.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7779/files/dd_form_1750.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/tukemoxodukiworisinerol.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/29974115078.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_off0000762f.bin
71a7e90d2f35f39863f7a2290e222ca0da8048d1760378a1e8d78153c0bddd9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x762F 5436 bytes
font_01_sfnt_off000088c0.bin
28be4172f93967bbfc96bfac5fcca7a8db6ac1d367484bb30cb940cac02bf289		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88C0 10092 bytes
font_02_sfnt_off0000aab6.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB6 4324 bytes

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