Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0137046e8241cf1…

MALICIOUS

PDF

44.3 KB Created: 2020-09-09 21:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52b41ccc3d63c15a1b08438c99227de7 SHA-1: d1e9095157aa23bf40c323df2f628df0184671ac SHA-256: d0137046e8241cf1865c8a202ea4c6e0f29e46a2dba206f51d03de9291097f19
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'consignment stock contract template' and embeds multiple links. One of these links, 'https://ttraff.me/wix?keyword=consignment+stock+contract+template', is identified as a malicious redirector. The presence of numerous external links, including this malicious one, suggests an attempt to direct the user to harmful content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact payload.

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.me/wix?keyword=consignment+stock+contract+template
    • https://static.usrfiles.com/ugd/a43ec6_b0bc44f2fae44df19012cae12935cd3a.pdf
    • https://static.usrfiles.com/ugd/ade4e6_6c2efc0c4e2e4bd597f39c059ff77686.pdf
    • https://static.usrfiles.com/ugd/544c7e_5474c72bf3124c7480a687a5d6052e72.pdf
    • https://static.usrfiles.com/ugd/07625c_e8edfdaa520148549301769d51a449f0.pdf
    • https://static.usrfiles.com/ugd/b85eb0_6c2e279168784fd09715d67cc4b3ee87.pdf
    • https://static.usrfiles.com/ugd/73c254_9845d9b487b54db2915f5ba7313a1825.pdf
    • https://cdn.shopify.com/s/files/1/0449/5143/7480/files/26560930700.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/jetetibezamip.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/vajerigi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3539/3191/files/charging_pads_for_android_phones.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_off00007228.bin
3a45d97f2a40bff3dc7839b443e992192268b9ee0da509a9c0610cdfd65cc12c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7228 5224 bytes
font_01_sfnt_off000083db.bin
620f7e9ca59bb94035bf4885925bd37719c86784d72ed00c0afb06a5aae69e9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83DB 9656 bytes

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