Malicious PDF — malware analysis report

Static analysis result for SHA-256 2561615712acf978…

MALICIOUS

PDF

58.3 KB Created: 2020-08-30 12:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2a986c1ad80ba74199263aec5589e05 SHA-1: bb983843833db72b5dfa9938e2f51b18455b0a15 SHA-256: 2561615712acf97893c98505ea72304e44e1799c1684bf134d98db3aec5403ff
136 Risk Score

Malware Insights

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

The PDF file contains embedded links that lead to a redirector URL, which is a common tactic for distributing malware or phishing pages. The document body and heuristics indicate a lure related to 'Clash Royale hacked server' and a call-to-action to download, aiming to trick users into clicking the malicious link. The primary malicious IOC is the redirector URL, which is known to point to malicious infrastructure.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=clash+royale+hacked+server
    • https://static.usrfiles.com/ugd/b8c837_a749f06352934335ae43fd715734e904.pdf
    • https://static.usrfiles.com/ugd/b8c837_3297023679d549498317115d8b4c9a26.pdf
    • https://static.usrfiles.com/ugd/b8c837_9631e454f8c64eb89350741a13eb1129.pdf
    • https://static.usrfiles.com/ugd/ea2f88_a3f0068ef1c14c0aa5039fedcc9bec86.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_e513cc23f54446878f3d599a40451bbe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/lenusubopinagevozob.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/gilos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23342697578.pdf
    • https://cdn.shopify.com/s/files/1/0433/4501/9045/files/voribozezugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/bipovugalasubizitisureke.pdf
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/kejugoxevoso.pdf
    • https://cdn.shopify.com/s/files/1/0429/2391/7475/files/encyclopedia_britannica_2019.pdf
    • https://cdn.shopify.com/s/files/1/0449/5346/9083/files/south_australia_map.pdf
    • https://cdn.shopify.com/s/files/1/0430/1966/5561/files/nepezexixaxupomun.pdf
    • https://cdn.shopify.com/s/files/1/0433/9440/0423/files/spectrum_analyzer_theory_and_applications.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_off0000820a.bin
617f99ef63aa9d729d50b23b4deef99a51c2b8b5e6f78ae252851a25dc02c73a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x820A 4828 bytes
font_01_sfnt_off0000928a.bin
bd3fc42048918604c4b8c804dcdf6b1e7f975e1ea8673245c46a2913636ee9f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x928A 11032 bytes
font_02_sfnt_off0000b833.bin
975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB833 16312 bytes
font_03_sfnt_off0000cdbe.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDBE 4324 bytes

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