Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bf229ae3b14bc0f…

MALICIOUS

PDF

43.4 KB Created: 2020-08-25 00:23:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b72bdf5ca7628eb86f920533fb98ce1 SHA-1: 441525410df0b5822306ccd84c0a764a22b5aab6 SHA-256: 7bf229ae3b14bc0f48e1f8d427b5cdaa650c3695345e517fc6593940066a0e1e
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment 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 presence of a 'download button' heuristic further supports the lure mechanism. While the document body is heavily obfuscated, the embedded URLs and heuristics strongly suggest a phishing or redirection attack.

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/pify?keyword=filmic+pro+android+save+to+sd+card
    • http://files.tournoidevignoles.com/uploads/1/3/1/8/131856290/mabutimeparos-konakemit.pdf
    • https://cdn.shopify.com/s/files/1/0447/1003/5609/files/deled_second_semester_date_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0451/0233/4104/files/akele_tanha_jiya_whatsapp_status.pdf
    • https://cdn.shopify.com/s/files/1/0435/2534/1343/files/ielts_reading_practice_test_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0994/files/tadipubab.pdf
    • https://cdn.shopify.com/s/files/1/0462/0831/9641/files/genotype_phenotype_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zodotuxufaliga.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/elementary_spelling_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/73405928080.pdf
    • https://cdn.shopify.com/s/files/1/0440/2459/4597/files/56306772076.pdf
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/tewaviparirurorazi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4852/6246/files/pubem.pdf
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/candy_blast_games_free.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_off00005660.bin
c501ca5600c16be594c520d01f824344f0469c9f8a0ca7b8237a2b05c4368692
pdf-font-stream PDF embedded font (sfnt) at offset 0x5660 5232 bytes
font_01_sfnt_off00006811.bin
40015aabe33a6f9b144669ed49103f5efb3908cf374564d3f332d41c26fbefd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6811 10500 bytes
font_02_sfnt_off00008c0e.bin
0b36605a6e61a74a7f8c2aef65bffbce38398019a9a977160a4dcabe0d880f8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0E 16076 bytes