Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bb2d2066bb8867a…

MALICIOUS

PDF

45.1 KB Created: 2020-09-03 10:06:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c71e3bd1fbe86b5946563ba6b72925a SHA-1: 9591e793d51e4f17e33d8442d648825363af8cba SHA-256: 9bb2d2066bb8867aaf39ef3efc909c6cc0a50f13907daa8974e89ad7529e6ac4
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body and embedded artifacts are heavily obfuscated, but the presence of a malicious redirector URL strongly suggests an attempt to lure the user to a harmful site. The file also contains a mass external PDF link farm, further indicating a malicious intent to distribute links.

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.club/wix?keyword=alif+ba+ta+app
    • https://cdn.shopify.com/s/files/1/0429/1421/8143/files/2_kids_one_sandbox_original_video.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/jularaxonig.pdf
    • https://cdn.shopify.com/s/files/1/0445/3462/8516/files/27923920074.pdf
    • https://static.usrfiles.com/ugd/a467d2_cad0675e45034b61b57406764aa3b4e4.pdf
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/kabedizovubife.pdf
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/10736000960.pdf
    • https://cdn.shopify.com/s/files/1/0437/5294/7873/files/does_no_mean_no_in_every_language.pdf
    • https://cdn.shopify.com/s/files/1/0431/9834/9471/files/python_cut_off_decimal.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4549/files/attributes_of_allah_in_islam.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
stream_005_off00007984.bin
f98cb9ae8db57a427e2ff29929e1aff5fd21ef9e5be9ff99133b9cfe57ef9855		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7984 25876 bytes
font_00_sfnt_off00004791.bin
06f37bddf61b3168c19295fc456fdded6b0f92056de5965bc77b707dace17705		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4791 4748 bytes
font_01_sfnt_off000057d3.bin
31e78ff2e83dbaf61d38865a8cb34037dd3ceee0d973a3a61e6e347b3d021292		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D3 9860 bytes

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