Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a1934defeaec87c…

MALICIOUS

PDF

48.4 KB Created: 2020-09-09 22:18:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cce0b6bc64e80e7c11bb76a7849f6ec8 SHA-1: 6ebfd8496f3ac63486c63b685c240828bd879310 SHA-256: 7a1934defeaec87c00c6775308db9343f2e65e529ac816a63c070bea02a117fc
180 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=editable+share+certificate+template+south+africa'. This, combined with the 'SE_PAYMENT_REDIRECT_LURE' and 'SE_CALLBACK_LURE' heuristics, strongly suggests a phishing or business email compromise attack. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the attack vector. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.me/wix?keyword=editable+share+certificate+template+south+africa
    • https://static.usrfiles.com/ugd/ad8f3a_0b88d24d91754d7c9c2caa4a71358510.pdf
    • https://static.usrfiles.com/ugd/cd79e3_312a0dce6494405794cb29dda4234aaf.pdf
    • https://static.usrfiles.com/ugd/bd1c09_44801f5748f84a9fbbe4ae094b05cf11.pdf
    • https://static.usrfiles.com/ugd/77d535_f8415488ccac4b9b84cd6ec9da72e2c0.pdf
    • https://static.usrfiles.com/ugd/3f0e57_b3b705bea7624049b826361372e91eb9.pdf
    • https://static.usrfiles.com/ugd/269bb8_a2bfe7c4ee52467fbfb9113ce00a2db9.pdf
    • https://static.usrfiles.com/ugd/6e3131_9b5441ff95c0440a9c354b1a312e9e34.pdf
    • https://static.usrfiles.com/ugd/3b0c81_a8ea11fa00d14170bd5209a57aaff3c7.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/soluxedo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/factsheet_ting_anh_l_g.pdf
    • https://cdn.shopify.com/s/files/1/0429/2342/5955/files/14969139969.pdf
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/dr_dre_compton_torrent_download.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_e77ae587a1474c3b892dfcdb7f21e4a4.pdf
    • https://static.usrfiles.com/ugd/6203b9_15b8cf1f77e24999b0b1ae73dcc81da7.pdf
    • https://static.usrfiles.com/ugd/41f880_1c0bb1a3711a49dba0a1591c5947e70c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e64.bin
d9a4d1fde079b22647026e8ac43308b98c54cefdbd45a1a16026915b9e68afde
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E64 5492 bytes
font_01_sfnt_off000090e4.bin
f93751631d962c2b1bd2b926a86029eb5914c635b243e51af78de16b1adf524d
pdf-font-stream PDF embedded font (sfnt) at offset 0x90E4 10728 bytes