Malicious PDF — malware analysis report

Static analysis result for SHA-256 24273fc8dd6b368e…

MALICIOUS

PDF

48.7 KB Created: 2020-08-17 18:12:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56870bfab0feb1dde1bafe9a0bfe3663 SHA-1: ad9c39a714e2004339571258993f19f429e3552f SHA-256: 24273fc8dd6b368eacf4b08fd565e0a6268098e7e377d89f5dc9ca73537397ab
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=metal+gear+solid+v+gz+mod+apk'. This URL is presented as a lure for a game modification download. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to obscure the malicious redirector. The primary intent appears to be directing users to malicious infrastructure via the ttraff.ru domain.

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=metal+gear+solid+v+gz+mod+apk
    • http://newujika.lifestyleofthebeliever.org/uploads/1/3/1/4/131410685/vokukozuvod.pdf
    • http://files.barbaralcreations.com/uploads/1/3/0/9/130969440/3442b7d1d19a.pdf
    • http://files.nwhydro.org/uploads/1/3/1/6/131637881/butimikowaf_zekabelekupaz_kavipazu_suzajotepuxuxe.pdf
    • http://files.mountolivetvets.com/uploads/1/3/1/4/131437307/2593104.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdf
    • https://cdn.shopify.com/s/files/1/0435/0024/1061/files/budgeting_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0437/3194/3585/files/tecnologia_da_informacao_aplicada_a_logistica_livro.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9206/files/desayunos_saludables_para_bajar_de_peso.pdf
    • https://cdn.shopify.com/s/files/1/0443/6888/7964/files/60096011438.pdf
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/temodepawos.pdf
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/rewubawimezewufana.pdf
    • https://cdn.shopify.com/s/files/1/0432/0310/0836/files/27977872345.pdf
    • https://cdn.shopify.com/s/files/1/0439/2199/7979/files/xajinijixepunawusolu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2813/files/funabijoses.pdf
    • https://cdn.shopify.com/s/files/1/0435/5165/4047/files/simplifying_algebraic_fractions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/dorijurojaniwo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4492/8674/files/88687176892.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/21195382628.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84302935330.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_off00006391.bin
a501149881d28a9fcdb7e955c278015e4e61648937014e0fd82546a705a9bbde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 5456 bytes
font_01_sfnt_off00007625.bin
0bff6e86cda5a576ac58563f0d687d430a074c6d6dbb5ebfae4587af2f6eb5c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7625 10704 bytes
font_02_sfnt_off00009aef.bin
8bb547e2e08e6c69ffc09abb04b310e34c089a4d1d06f50c2b4708b01c3f6b2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AEF 17756 bytes

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