Malicious PDF — malware analysis report

Static analysis result for SHA-256 efaa33d56a3ab8aa…

MALICIOUS

PDF

46.0 KB Created: 2020-08-07 23:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46d836144041d06f25b4436e8a6a425f SHA-1: ed4c0f6dad9d2970764cc15dec5792e9ad59cb3b SHA-256: efaa33d56a3ab8aa3ae34548e39dc421a4d022e155c940b7efc5dea290613bef
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates the document's primary purpose is to redirect users to malicious sites. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broader campaign to distribute malicious content. The document body, though partially corrupted, contains text related to 'functional report of sebi aims and objectives pdf' and the wkhtmltopdf tool, likely serving as a lure.

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=functional+report+of+sebi+aims+and+objectives+pdf
    • http://files.birchsage.com/uploads/1/3/0/7/130775565/d4626e173e2.pdf
    • http://files.claireallegrataylor.com/uploads/1/3/1/8/131872087/kuvuj_xekal_bizupox.pdf
    • http://files.sarahconstable.com/uploads/1/3/1/8/131856877/af7f4a1b87711b.pdf
    • http://files.poseidonsporthorses.com/uploads/1/3/0/7/130740442/zezufinifemizaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.pdf
    • https://cdn.shopify.com/s/files/1/0437/8748/5342/files/narepok.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2439/files/bexatisuxajozekogeviw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6141/9927/files/d_d_5e_playable_races.pdf
    • https://cdn.shopify.com/s/files/1/0434/1920/5789/files/da_form_5704_r.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/67941930444.pdf
    • https://cdn.shopify.com/s/files/1/0439/2009/7448/files/95435969034.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/60130471010.pdf
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/80811338498.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/31442061248.pdf
    • https://cdn.shopify.com/s/files/1/0432/7335/5419/files/60417704460.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_off000066c0.bin
cf21dcedb838194c7a614dc4533ecb2ed3907eefed87ac1deaedae0ecc6d5424
pdf-font-stream PDF embedded font (sfnt) at offset 0x66C0 5412 bytes
font_01_sfnt_off0000790f.bin
7bfccb2f9d1e153d19515ea585e240d74677fcfdbb4500d12304cbcfce6f42ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x790F 10420 bytes
font_02_sfnt_off00009c96.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C96 4324 bytes