Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c269ba28314ea83…

MALICIOUS

PDF

46.4 KB Created: 2020-08-29 23:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ddb2605d1ccddd96c58dc763108dd96 SHA-1: 22d2dd44fd879ee959530762003e8a1f5acfaffd SHA-256: 2c269ba28314ea838d99f600b64b82b7f023a6ce9ed14e2fbc03a04ceb110810
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, a technique often used to create link farms for SEO poisoning or to redirect users to malicious sites. One critical heuristic firing specifically flagged a link to a known malicious redirector infrastructure at 'ttraff.com'. While many embedded URLs point to benign Shopify domains, the presence of the malicious redirector and the sheer volume of links suggest a high likelihood of malicious intent, such as phishing or malware distribution.

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/wix?keyword=continuous+control+with+deep+reinfor
    • https://static.usrfiles.com/ugd/b8c837_a409acdc255f47debc86f2cbc47a36cb.pdf
    • https://static.usrfiles.com/ugd/b8c837_c29ae1bceaaa479c8e4ea670a18e14fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_f43bf9bb8aaf49ecbaa661176d4b0ff7.pdf
    • https://static.usrfiles.com/ugd/4b68be_c2dd21cc2e514c27a105ed31c6617090.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/cells_vba_excel_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/1874573.pdf
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/fotuvejabesakoko.pdf
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/hodder_education_maths_workbook_3_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/9859883908.pdf
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/3258753302.pdf
    • https://cdn.shopify.com/s/files/1/0433/2617/7438/files/stardew_valley_compatible_mods.pdf
    • https://cdn.shopify.com/s/files/1/0431/0266/6906/files/fasisabipusu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6758/8252/files/building_trust_in_teams.pdf
    • https://cdn.shopify.com/s/files/1/0436/1352/0029/files/unnai_kaanadhu_naan_mp3_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8846/8376/files/tewire.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_off0000618a.bin
793e9c171504ebfd8ab3e41fb63d210b07948fa71dccd3fc034b6c99cf61e18c
pdf-font-stream PDF embedded font (sfnt) at offset 0x618A 5032 bytes
font_01_sfnt_off000072ae.bin
58f65ffa9c4f0877b1f6bf4dd37ae440fbd21c250442700fd6428ba6efebf0f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x72AE 10500 bytes
font_02_sfnt_off00009699.bin
9e028ca7817ce9e6d6d38f7ecb7a1e024ec63a974bd07644cb6109931c29c0fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x9699 16276 bytes