Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4219689c1bb8120…

MALICIOUS

PDF

45.7 KB Created: 2020-09-11 22:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4eb411021621d0741a438ee97425fd09 SHA-1: 21db2b3e73e4c6573e543276f65f2692dc06ea4c SHA-256: c4219689c1bb8120bc53ef2131379cfba05d971233f39d0dc96ec0496d407be4
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.link/wix?keyword=soundcloud+hacked+apk+ios'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content. The document body also contains the malicious URL, reinforcing the lure. The primary intent appears to be directing users to potentially malicious content or phishing sites under the guise of information about a 'soundcloud hacked apk'.

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.link/wix?keyword=soundcloud+hacked+apk+ios
    • https://cdn.shopify.com/s/files/1/0459/8874/1282/files/55248413422.pdf
    • https://cdn.shopify.com/s/files/1/0435/2920/7957/files/gasolugisipire.pdf
    • https://cdn.shopify.com/s/files/1/0428/7909/0854/files/18454007927.pdf
    • https://cdn.shopify.com/s/files/1/0443/2723/9836/files/elementary_set_theory_book.pdf
    • https://cdn.shopify.com/s/files/1/0463/1943/5936/files/starbound_frackin_universe_build_you.pdf
    • https://cdn.shopify.com/s/files/1/0435/5240/7704/files/battlefield_5_time_ps4.pdf
    • https://cdn.shopify.com/s/files/1/0430/2798/8634/files/bologna_mappa_citt.pdf
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/65761072708.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/84260631858.pdf
    • https://static.usrfiles.com/ugd/b8c837_e05996274a114557ba240fe8438ab133.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_885d84c42dd146aa890f2e71f0328352.pdf
    • https://static.usrfiles.com/ugd/7ae8b3_9f130559fdb747dc80e9b861cc9737cf.pdf
    • https://static.usrfiles.com/ugd/b11f6d_aecfb898f1e2414fafe11891c3aee5f2.pdf
    • https://static.usrfiles.com/ugd/4dd980_bbd627774c004e308d085b383cdc65cc.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_off000074b1.bin
eb608f0e252b50b456b560b98051cef96c8bd81ce1acf15426d45862cdea9eb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B1 5232 bytes
font_01_sfnt_off0000867c.bin
815d53e09ee288bfca8c1430b2c9467095af148bf3940055d1eab25c133157e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x867C 10536 bytes

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