Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e62adf7d12fe0c6…

MALICIOUS

PDF

45.4 KB Created: 2020-08-14 14:01:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e52ac891d12d332d4c11ae7af6ef465e SHA-1: ec9dce5af6152e120fe9fa0b679529edcb95b95c SHA-256: 1e62adf7d12fe0c65787f3cdbfc4a89e7a9e81d10eb882866ac953523503baa8
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for a 'child development book pdf'. This link points to 'ttraff.cc', which is flagged as malicious. The document also contains a large number of links to Shopify domains, likely part of a link farm to improve SEO for the malicious redirector. The presence of a 'download button' heuristic further supports the lure.

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.cc/wb?keyword=child%20development%20book%20pdf%20download
    • http://toboxevif.jubileemovement.com/uploads/1/3/2/7/132710797/7f834b6f5acbe.pdf
    • http://files.sustainablemanagement.ca/uploads/1/3/2/8/132814123/6677459.pdf
    • http://files.oladyofsorrows.org/uploads/1/3/0/9/130968988/3997224.pdf
    • http://files.wemachinebilletparts.com/uploads/1/3/0/7/130738646/vuwanonulusetibosaz.pdf
    • http://reniwil.swflreview.com/uploads/1/3/0/7/130775511/f4922387dbc76d.pdf
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/d_d_bestiary_5e.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdf
    • https://cdn.shopify.com/s/files/1/0429/9233/7059/files/44145897614.pdf
    • https://cdn.shopify.com/s/files/1/0434/6462/2242/files/affidavit_of_support_form_australia.pdf
    • https://cdn.shopify.com/s/files/1/0436/3865/3081/files/30493138232.pdf
    • https://cdn.shopify.com/s/files/1/0432/8187/5112/files/26241957151.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/jijadotanabudolimu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/68642672976.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9208/files/60541806150.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1402/files/wepipudemobejuzi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/89791599984.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/basic_guitar_chords_for_beginners_acoustic.pdf
    • https://cdn.shopify.com/s/files/1/0447/0187/6377/files/dead_like_me_wiki.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_off00006025.bin
5fbbc28eb7b4638b030c9349c3fe5e164e0a47d08df3bdd56cd8193436246e9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6025 5172 bytes
font_01_sfnt_off000071af.bin
4d0733fbb8d86eed13294f5293e107d9672296b030fbfb61cac4886b5cb2ab86
pdf-font-stream PDF embedded font (sfnt) at offset 0x71AF 12508 bytes
font_02_sfnt_off00009a20.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A20 4324 bytes