Malicious PDF — malware analysis report

Static analysis result for SHA-256 da0a7f07fc29f26e…

MALICIOUS

PDF

60.2 KB Created: 2020-08-31 03:27:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f5a5c85022731a0cc122029abc75b1d SHA-1: 5dc932fa98befdf0a86764313a349a94cb62fc22 SHA-256: da0a7f07fc29f26e14320c8f666af5343a32ff1009332ca7bf6bcdd539914dc5
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link (ttraff.com) disguised as a download button, which is a common lure for phishing or malware delivery. The document body, though heavily obfuscated, contains the same malicious URL and a list of other URLs hosted on static.usrfiles.com, likely part of a link farm to improve SEO for the malicious content. The presence of a visual download button lure further supports the malicious intent.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=divinity+original+sin+lone+wolf+buil
    • http://shoxet.com/1955ac
    • https://static.usrfiles.com/ugd/d94ae5_a00341a9a92445edb96586b4ae2473a8.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_d82edbacceaf4ba78880da977d7b0de1.pdf
    • https://static.usrfiles.com/ugd/df4650_5a587271fd5741e88f6f0af20f519410.pdf
    • https://static.usrfiles.com/ugd/9757e7_2f9e45e8b7884c1cb985a5aa8225e080.pdf
    • https://static.usrfiles.com/ugd/b8c837_1dfe8f8888b8491f80ea938412e789d6.pdf
    • https://static.usrfiles.com/ugd/5de1df_1fa89fdaea7c4215988a063c036b6095.pdf
    • https://static.usrfiles.com/ugd/fa6f14_26da311e02c541eeaa00781bc3cd782b.pdf
    • https://static.usrfiles.com/ugd/e2f197_9ae4f34045a548ec8a458b4319fbdfc3.pdf
    • https://static.usrfiles.com/ugd/cc14e4_31565f729db54fd79c7f2ec38fe6ef57.pdf
    • https://cdn.shopify.com/s/files/1/0436/3275/4841/files/43694689939.pdf
    • https://cdn.shopify.com/s/files/1/0446/0537/4628/files/latin_america_political_map.pdf
    • https://cdn.shopify.com/s/files/1/0463/1858/3973/files/math_worksheets_for_kindergarten_numbers_11-15.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/vevinamupo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000089ca.bin
0d43c9c104002713b199a0730e3221c5d4f6e31aa372d80a896205c417569611
pdf-font-stream PDF embedded font (sfnt) at offset 0x89CA 5208 bytes
font_01_sfnt_off00009baf.bin
84c8d939d93b8c2b828b6b4aff83aeaa20a86eb9c9d8a7cddf23ec716fdb4422
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BAF 10464 bytes
font_02_sfnt_off0000bfb1.bin
656715a32156dadbb23107c1c47256491d80ae9ca8565cf3e41c978db5d17779
pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB1 16364 bytes
font_03_sfnt_off0000d585.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xD585 4324 bytes