Malicious PDF — malware analysis report

Static analysis result for SHA-256 c847a7dc218c1f5e…

MALICIOUS

PDF

44.1 KB Created: 2020-08-28 04:00:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f2cb887167e79d61167229fd049eccd SHA-1: 238d1f4fee62915bd70eaefd07b790d210587dcf SHA-256: c847a7dc218c1f5e0a639d464b29192cd001bd0f5456fc5d1db0aaf816866b89
120 Risk Score

Malware Insights

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

The PDF file contains a clear lure for a movie download, which is a common social engineering tactic. It embeds a link to a redirector service, `https://ttraff.cc/pify?keyword=chashme+baddoor+full+movie+voot`, which is flagged as malicious. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or distribution mechanism. No scripts were extracted, but the primary malicious activity appears to be the redirection to a harmful URL.

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.cc/pify?keyword=chashme+baddoor+full+movie+voot
    • http://files.pslerevision.com/uploads/1/3/1/4/131437535/sekexopulupuwodedo.pdf
    • http://files.theenglishegg.com/uploads/1/3/0/7/130739214/dd86778a7593b54.pdf
    • https://cdn.shopify.com/s/files/1/0431/7125/0333/files/kog_maw_build.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/zuveweg.pdf
    • https://cdn.shopify.com/s/files/1/0432/8774/0576/files/1165537241.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/xewoxonuxavururujusaguk.pdf
    • https://cdn.shopify.com/s/files/1/0435/1331/5480/files/luwedaba.pdf
    • https://cdn.shopify.com/s/files/1/0439/4395/2539/files/vaseruwivu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/47786291349.pdf
    • https://cdn.shopify.com/s/files/1/0437/6965/9549/files/round_to_two_decimal_places_python.pdf
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/pig_latin_python.pdf
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/85330353383.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c50.bin
3085ceac2c10c43f4956e3fc77e30f0a8622777691f663f2e41981f60d0b51cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C50 5148 bytes
font_01_sfnt_off00005dd2.bin
8fe1c6682340f652af8f8b9c53a9b24b68f1dd0427805429b7f0b67239b53ede		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD2 10004 bytes
font_02_sfnt_off00008037.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8037 16164 bytes
font_03_sfnt_off0000954e.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x954E 4324 bytes

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