Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8e81ab4af063ef0…

MALICIOUS

PDF

35.1 KB Created: 2020-08-16 17:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e78c358a27c488eb4a554e2104cec32 SHA-1: 159ad168dd73f8ef1601e50c5833e6848287438a SHA-256: c8e81ab4af063ef09fa3795f753920674f57a0a7bc677df6d6e7e6068a275dbb
140 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=annual+leave+request+template+nz'. This URL is associated with known malicious infrastructure. Additionally, the document body suggests a callback phishing or tech-support scam pretext by mentioning 'annual leave request template nz' and embedding numerous links, many of which point to benign Shopify domains but are likely part of a link farm to improve search engine ranking for malicious content.

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.
  • 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.com/pify?keyword=annual+leave+request+template+nz
    • http://files.awakenthesenses.co.uk/uploads/1/3/0/7/130776164/d399d38.pdf
    • http://menugoke.reedley4h.com/uploads/1/3/0/9/130969059/3728105.pdf
    • http://lelazifig.scmsociety.com/uploads/1/3/0/8/130814328/soxejelebe_sepofovisemuner.pdf
    • http://files.ashtangaingroningen.com/uploads/1/3/1/4/131482937/bitowa.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/88049436525.pdf
    • https://cdn.shopify.com/s/files/1/0439/7708/0990/files/23135931134.pdf
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/caulerpa_sertularioides.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajakeveposemilakojataza.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9447/files/ps3_steering_wheel_and_pedal.pdf
    • https://cdn.shopify.com/s/files/1/0437/8407/7473/files/pituv.pdf
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/icd_10_code_for_bunion.pdf
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/zikuniwexomizimekow.pdf
    • https://cdn.shopify.com/s/files/1/0429/5173/7498/files/97474025741.pdf
    • https://cdn.shopify.com/s/files/1/0433/9331/9079/files/teduxumebupovo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/7723965169.pdf
    • https://cdn.shopify.com/s/files/1/0430/1383/2857/files/50927930606.pdf
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/fumebaxalibalarejum.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9393/files/xadukufimova.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_off00004c2e.bin
7892d7186b7fd382f317555389f4c6caa5b962928847ae711156d20c9c47704a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2E 5188 bytes
font_01_sfnt_off00005dc7.bin
5e86e74c7caa917436f3b36fc8fe9f68ef93d78e7b79875f7e7ae3772c3f728b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC7 9888 bytes