Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4d4ec1a02822b29…

MALICIOUS

PDF

40.3 KB Created: 2020-08-20 04:25:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5043a6185d17cef0416b6ba9d2963f27 SHA-1: bd3a9a8671b8d5aff836227f8938750f59b7357a SHA-256: f4d4ec1a02822b299959352a2f2a34488b5bb604baadbcc266b062e7bf06932a
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'burner app mod apk'. This suggests the document's purpose is to trick the user into visiting malicious infrastructure, likely for malware delivery or phishing. The presence of a 'download button' heuristic further supports this attack pattern.

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.ru/pify?keyword=burner+app+mod+apk
    • http://suzuxez.hilburnacademypta.com/uploads/1/3/0/8/130874222/70b6c100.pdf
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/dogar_books_for_navy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/0193/7063/files/3033685779.pdf
    • https://cdn.shopify.com/s/files/1/0463/7717/3147/files/gokigisamig.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/brother_hl-_2280dw_driver.pdf
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/towuwajozuxalafagupises.pdf
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/jovuzadilanizur.pdf
    • https://cdn.shopify.com/s/files/1/0435/3854/6840/files/88156243515.pdf
    • https://cdn.shopify.com/s/files/1/0431/9766/1348/files/lg_dp132_dvd_player_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/8118/6971/files/nivulikel.pdf
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/71968359937.pdf
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/46296737294.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3429/files/vikuf.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_off00006064.bin
502387312d558cbf5a9e1149d12522409fdb1ebd9569a0b2a9313a62d2d4a908		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6064 5008 bytes
font_01_sfnt_off00007157.bin
890c1918dba705bb1fde04728bb1ada893fd71df91cbb1d6aa13032df9d6e110		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7157 10488 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.