Malicious PDF — malware analysis report

Static analysis result for SHA-256 570f7bb2643a6c03…

MALICIOUS

PDF

42.1 KB Created: 2020-08-29 21:11:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc99f0661c8f3f0bb83b076cf7b7f72f SHA-1: 7799313135751493888cd564054667ea6e8023f4 SHA-256: 570f7bb2643a6c03e345ddffebacb434a010935227da457964e573184744de9c
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, suggesting a phishing or malware distribution attempt. The presence of a 'download button' heuristic further supports this, indicating a lure to trick the user into clicking the malicious link. The document body text, though corrupted, contains keywords related to a game trainer, likely used as a pretext for the malicious download. No scripts were extracted, limiting the analysis of the payload.

Heuristics 4

  • 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.
  • 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=a+plague+tale+innocence+trainer
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/kunerox.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mizamolapo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8559/4775/files/36453587076.pdf
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/acrobat_reader_free_windows_7_ultimate.pdf
    • https://static.usrfiles.com/ugd/469aea_fe30a3a35cc447338cdf53de536733b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_30af63356c804a899a100402006bec80.pdf
    • https://static.usrfiles.com/ugd/b8c837_d1f77c90893a4412aaa3473ad3b14f38.pdf
    • https://static.usrfiles.com/ugd/136d07_e53b57a89e604103ae05fae1a31598be.pdf
    • https://static.usrfiles.com/ugd/b8c837_0e07668e1ce740638d2bf153e34a7753.pdf
    • https://static.usrfiles.com/ugd/b8c837_ff910d170d6841a3b17d15e22acd6871.pdf
    • https://cdn.shopify.com/s/files/1/0433/7428/0855/files/23826152542.pdf
    • https://cdn.shopify.com/s/files/1/0432/7584/5792/files/cell_definition_biology.pdf
    • https://cdn.shopify.com/s/files/1/0433/3430/3912/files/kafiwenib.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_off00006722.bin
c36da5c089465907b67d227a8a945ba2c47a1d356b2a168cf5f7262ffc3284ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6722 4912 bytes
font_01_sfnt_off000077e4.bin
b04adb20268cf514c61613cfea2183a6c4becbb57830baea2c5146a8815ba42e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77E4 10636 bytes

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