Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e8e056ec1ef7c95…

MALICIOUS

PDF

41.1 KB Created: 2020-09-06 07:52:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f9b8e798d6b97fd339a075afd75d232 SHA-1: b8f80006146c86955817bb6546de8afa4fe35fa5 SHA-256: 4e8e056ec1ef7c9521f18affe9dfec54b00f955a91004a43a7ded074c28c2432
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.link'. The document body, though partially corrupted, contains text related to 'car accident reports mn' and includes the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, with the primary malicious URL being the most concerning.

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.link/pify?keyword=car+accident+reports+mn
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/30499979419.pdf
    • https://cdn.shopify.com/s/files/1/0437/8374/9781/files/picsart_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/landscape_architecture_dissertation.pdf
    • https://cdn.shopify.com/s/files/1/0437/2496/3990/files/cardiopatias_congenitas_cianoticas_y_acianoticas_pediatria.pdf
    • https://static.usrfiles.com/ugd/b8c837_778fabad083c45bcac7329df819bf7d4.pdf
    • https://static.usrfiles.com/ugd/ab63e3_82d6c387771c4a9fa7883b034f109d07.pdf
    • https://static.usrfiles.com/ugd/f3cb45_46e6a1c909744438b4a717a136bdbaef.pdf
    • https://static.usrfiles.com/ugd/b8c837_df1a1c20865c4c6e9d4104b2398e5560.pdf
    • https://cdn.shopify.com/s/files/1/0433/0533/6985/files/nudozilodidiritojoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/41321574736.pdf
    • https://cdn.shopify.com/s/files/1/0440/2721/6037/files/unable_to_connect_to_the_infostore.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/32794067219.pdf
    • https://static.usrfiles.com/ugd/4f92c1_b712522d2e24430596161de8696bf0f2.pdf
    • https://static.usrfiles.com/ugd/856cea_7521fe0666b64c969d7681ae879d3712.pdf
    • https://static.usrfiles.com/ugd/b8c837_032545bc579f4844a2adcab88841ae67.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_off00005615.bin
5f923ac009a2c09f202fe624661df3ee4d6cae7fa1090cb5b9291748ec98901a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5615 4996 bytes
font_01_sfnt_off000066f4.bin
8247ee120b0cf01553aad70bb17c643f38baf833e205a0ee824d6764c38d37a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x66F4 10228 bytes
font_02_sfnt_off000089e8.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x89E8 4324 bytes