Malicious PDF — malware analysis report

Static analysis result for SHA-256 c363aa93c4062d65…

MALICIOUS

PDF

56.5 KB Created: 2020-08-21 02:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 568de6b52f6f4389514c7bfedd180940 SHA-1: 4d0c06eeadb1110898b3fd1295f7752d215ef63f SHA-256: c363aa93c4062d6550590ade58fd585ee1a61bc19bb3dac31080bfe11efe275b
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to further malicious content. The document body, though heavily obfuscated, contains the same redirector URL. The presence of a link farm heuristic suggests a broad attempt to distribute malicious links, likely for SEO poisoning or traffic generation.

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.com/pify?keyword=android+latitude+longitude+example
    • http://files.teresapilarhuarte.com/uploads/1/3/0/7/130739112/zalulefibu.pdf
    • http://nunowaja.doublefoxx.com/uploads/1/3/1/0/131070450/95963409.pdf
    • http://files.blackdogdigital.com/uploads/1/3/0/7/130739525/fabufa.pdf
    • http://terevukab.perfectskinllc.com/uploads/1/3/0/9/130969559/feronafaperazi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/8085_addressing_modes.pdf
    • https://cdn.shopify.com/s/files/1/0430/6196/9057/files/epidemiology_of_amoebiasis.pdf
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/42799837548.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/cod_waw_mod_menu_pc.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/guia_do_estudante_atualidades_2020_download_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/vudarogizetof.pdf
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/larapo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/molar_volume_of_gas_lab_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/2904/4119/files/surgical_anatomy_of_pancreas.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/sebojekojowagikolud.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_off0000888c.bin
e0fd5349eb1fed0f60efeed4a6742f9aaf8ef2b9a8ddb18f1ee7fce1cc7da35b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x888C 5160 bytes
font_01_sfnt_off000099fd.bin
c8b17a314b659450e664f596631fcaca659aeee5bb64abadb546ad605e22cd32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99FD 10532 bytes
font_02_sfnt_off0000be23.bin
62b3948e0e40d8ba1e83d9aa19c7af70085e7b6691727982ba447b75cbddb3f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE23 16088 bytes

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