Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69e9e61e08bc3e4…

MALICIOUS

PDF

42.6 KB Created: 2020-09-16 14:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 821bff04fb41f58e809ed8263d581b1c SHA-1: 28e15e2556415a773c4ad106b502879c835c2255 SHA-256: c69e9e61e08bc3e4aeee26653ae2b77847eac863d1918dff6428c16c55b0a662
120 Risk Score

Malware Insights

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

The PDF contains a deceptive document body masquerading as a chemistry worksheet, which is a common lure. It embeds numerous links, including one identified as a malicious redirector. The primary malicious link is https://ttraff.club/wix?keyword=chemistry+gas+laws+review+worksheet+answers, which likely leads to further malicious content. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious payloads through various hosted documents.

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.club/wix?keyword=chemistry+gas+laws+review+worksheet+answers
    • http://files.journeystoflavors.com/uploads/1/3/0/9/130969555/a18860d033.pdf
    • http://files.w-here2stay.org/uploads/1/3/1/4/131406977/794068.pdf
    • http://files.springfieldalphas.com/uploads/1/3/2/7/132712483/7464202.pdf
    • http://kadukab.flairrealty.co/uploads/1/3/2/6/132695675/880691.pdf
    • http://firapiju.thesugarshackofboilingsprings.com/uploads/1/3/0/8/130874411/vesokawivake.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/bapoponununojumod.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdf
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/32929402384.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/algebraic_geometry.pdf
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/88480562378.pdf
    • https://cdn.shopify.com/s/files/1/0430/0016/8607/files/feruriw.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/79305705006.pdf
    • https://cdn.shopify.com/s/files/1/0435/5627/4339/files/13068930953.pdf
    • https://cdn.shopify.com/s/files/1/0437/1575/6181/files/steam_ubuntu_14._04.pdf
    • https://c4298054-a7cb-4798-ac0e-cacde2184d33.filesusr.com/ugd/bc0b97_42abee5a807d4663ac1f0f7a582fee8f.pdf?index=true
    • https://c93ceda7-4009-46b2-8421-880125a843a3.filesusr.com/ugd/ce14f3_79befbb6f80d4a2eb42e2ba10b2ae5d9.pdf?index=true
    • https://3fda3d0b-8d52-4e7a-b46f-53f87ee4b08f.filesusr.com/ugd/e3c460_950110fd23924ad5aac3d987b9d745d6.pdf?index=true
    • https://06f0fce1-1a69-43a1-aa63-c77d09e183fa.filesusr.com/ugd/3be48b_49e906e013424477b095d07e716390df.pdf?index=true
    • https://0b1f8010-0b94-47cd-bda0-18ad10f4fba3.filesusr.com/ugd/3225da_07d38eedd0cd433d800c31bd30456fb5.pdf?index=true
    • 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/
    • https://06f0fce1-1a69-43a1-aa63-c77d09e183fa.filesusr.com/ugd/3be48b_49e906e013424477b095d07e716390df.pdf?index=t

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006886.bin
db0ef7e3dd17f30da4d4f1af8208215b5a8d9c1ef3620bdb29f4595510d3bfe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6886 5324 bytes
font_01_sfnt_off00007a87.bin
a11791e4123843d24f1426f7539bbd9a6a4c7eb8aa776df6b071b096a2190285		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A87 10096 bytes

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