Malicious PDF — malware analysis report

Static analysis result for SHA-256 aacf518606c6cf38…

MALICIOUS

PDF

41.6 KB Created: 2020-09-01 01:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8acd71d950425397fc5160ef35838e74 SHA-1: 6a7f83902e6ff8cfaaebe11a999b77b353c60f76 SHA-256: aacf518606c6cf38368a7ba80d95e8e07e7d5c18dc487cb6d19fd7da6fcb938a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to a URL that promises movie content. This URL is likely used as a lure to trick users into clicking and being redirected to a malicious site. The file also contains a large number of embedded PDF links, many of which point to the same domain, suggesting a link farm for SEO manipulation or to obscure the final destination. No scripts were extracted from this sample.

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.cc/wix?keyword=cast+away+movie++480p+dual+audio
    • https://static.usrfiles.com/ugd/5ecadc_ef1d97eb026344dda7e212dd5cad2c54.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_e72f41226076429aa65f5370276a2a9e.pdf
    • https://static.usrfiles.com/ugd/50de67_86371f4daaf04055b2ac17c84e171a35.pdf
    • https://static.usrfiles.com/ugd/b5472a_32e6dbebc5af430181fe1e7310e08081.pdf
    • https://static.usrfiles.com/ugd/01bc73_1b9dce2bd4ab4dcc8325bbc78c4a89a2.pdf
    • https://static.usrfiles.com/ugd/e23fbb_3563387cf1cb47dfb410e2b4caf6e3e0.pdf
    • https://static.usrfiles.com/ugd/32777b_5868b8c0786245b59c6770ba4d0d1463.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4ce1bf290ec480480197815fc9ee649.pdf
    • https://static.usrfiles.com/ugd/77d535_3f0330fc83db46eaacaca63c9d3b5592.pdf
    • https://static.usrfiles.com/ugd/934fc3_7fe9c2ccc79e4c2685868e2311c91b9e.pdf
    • https://static.usrfiles.com/ugd/1ee69b_370c3e7d91a24155a9876a9f1c6ab0d0.pdf
    • https://static.usrfiles.com/ugd/60933b_1dba5caf4a2645f6be009f12a9bf6417.pdf
    • https://static.usrfiles.com/ugd/856cea_594cb2c1c1ca46b2bba43690ae4aff09.pdf
    • https://static.usrfiles.com/ugd/c1de29_f926373d9b0d46e18d1e15d0a23538c6.pdf
    • https://static.usrfiles.com/ugd/a86d68_8beeee3a48834f6197df56a6c33aa3cf.pdf
    • https://cdn.shopify.com/s/files/1/0428/7181/6358/files/43935469532.pdf
    • https://cdn.shopify.com/s/files/1/0434/1897/6408/files/rise_of_the_tomb_raider_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0431/4998/3905/files/suara_cucak_ijo_jember.pdf
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/full_absorption_costing.pdf
    • https://cdn.shopify.com/s/files/1/0438/6501/4432/files/guia_exani_ii_2018_contestada_gratis.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_off00005697.bin
265edda2e050708114993a52403438bc2b7a2a42614295ab6ca04301f0fbd800
pdf-font-stream PDF embedded font (sfnt) at offset 0x5697 5488 bytes
font_01_sfnt_off00006971.bin
c91258bbb067d30de10b802b897918e46859e5a9580344692365d4e5cc1c3a61
pdf-font-stream PDF embedded font (sfnt) at offset 0x6971 9956 bytes
font_02_sfnt_off00008b60.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B60 4324 bytes