Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6963834cc165c05…

MALICIOUS

PDF

36.4 KB Created: 2020-08-31 13:11:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46bafd90f6de8f17465efc11bc7cc889 SHA-1: 88142d6eeb67c3378c9a554b576b29aa471a541a SHA-256: d6963834cc165c050825a733c5463760e12a9a8d280c7984d19d21a91df4e8a5
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a movie download, which redirects to a known malicious domain. The document body, though heavily obfuscated, contains references to 'terror among us' and the malicious URL, reinforcing the lure. The primary malicious URL is https://ttraff.ru/wix?keyword=terror+among+us+full+movie, which is likely used to redirect users 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.ru/wix?keyword=terror+among+us+full+movie
    • https://cdn.shopify.com/s/files/1/0435/5411/1656/files/agronomy_pdf_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1555/2672/files/silaxip.pdf
    • https://cdn.shopify.com/s/files/1/0448/4120/5917/files/11758529978.pdf
    • https://cdn.shopify.com/s/files/1/0463/1435/6896/files/gakereteruvipajaguwod.pdf
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/89051575731.pdf
    • https://cdn.shopify.com/s/files/1/0458/6579/5737/files/ashrae_psychrometric_chart_sea_level.pdf
    • https://cdn.shopify.com/s/files/1/0428/3006/9927/files/52501097219.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/31196596842.pdf
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/da_2823.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/90996106793.pdf
    • https://cdn.shopify.com/s/files/1/0438/0357/4434/files/linkin_park_catalyst.pdf
    • https://static.usrfiles.com/ugd/8de238_a2d23a2d912840aca83175f95274d171.pdf
    • https://static.usrfiles.com/ugd/e5a943_e4b42509ee5142b7ac94b756820ed391.pdf
    • https://static.usrfiles.com/ugd/8b2c09_1ea89c5f32784793aced0d0856b448fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_bcd678c7ef524c07bc309c103da931d5.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_off00004fdd.bin
52a60f51f2ccd76d7a2a0afaafc564251f5471dfb1570c28a40334528ad8688e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FDD 5096 bytes
font_01_sfnt_off00006127.bin
e8ff513110ba0c246cf5c8848b4d85be1609da0a67c4a28814d2eef5731fe83b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6127 10536 bytes

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