Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec30ed0be64b6b47…

MALICIOUS

PDF

41.5 KB Created: 2020-08-14 00:28:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 883440a6384f1eead726c54e7ab885cf SHA-1: 3abc784a57e5fd502b260da4022ee5b6c820d815 SHA-256: ec30ed0be64b6b475c70c40ee3d7c522f6bf50d0a6ed66d67fcedc5a08e5fdcf
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains text related to a song search, suggesting a lure. The primary malicious IOC is the redirector URL, which likely leads 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/pify?keyword=leave+me+alone+song++musicpleer
    • http://files.raymondbordogna.com/uploads/1/3/0/9/130969115/a56aceeac9d.pdf
    • http://jusogun.motoroiltests.com/uploads/1/3/0/7/130775214/gogetagufajef_gojew.pdf
    • http://jowalobo.starzplace.com/uploads/1/3/1/1/131163599/53c170.pdf
    • http://jajerap.hanadiphotography.com/uploads/1/3/1/3/131378950/a7de3df0e4a.pdf
    • http://files.inhcc.net/uploads/1/3/1/4/131406563/tazosuxoxugagisoxub.pdf
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/bokan.pdf
    • https://cdn.shopify.com/s/files/1/0437/6041/8970/files/xuzadowibefewufuluzefo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/xiviwovokij.pdf
    • https://cdn.shopify.com/s/files/1/0428/8859/3571/files/larizirenubotazijadu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/xisolivukamowudirujujoged.pdf
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/13529971807.pdf
    • https://cdn.shopify.com/s/files/1/0439/3464/6440/files/anesthesia_in_laparoscopic_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/92923950226.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0808/files/crazy_train_solo_tab_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/8376161511.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055da.bin
1f299590c6e92ec8c865e85ee8aed84314571cb1101837e3f27ad37df63b4376
pdf-font-stream PDF embedded font (sfnt) at offset 0x55DA 5056 bytes
font_01_sfnt_off000066f5.bin
66c3ebdfa58897649e3f09067edaf522c09e5e3f4e507fcacbc1b3e1a1f21410
pdf-font-stream PDF embedded font (sfnt) at offset 0x66F5 10560 bytes
font_02_sfnt_off00008ad9.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD9 4324 bytes