Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e1a73cc2a0b8d3d…

MALICIOUS

PDF

48.8 KB Created: 2020-07-28 23:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3371ef0ebe26c18617a7109d85ed08ee SHA-1: 79683c3430ba866d2347b3c2cb6aa20cb503a4bd SHA-256: 1e1a73cc2a0b8d3d9a0c461acdad376d3f8b2ffb9324e12f9db28a44a74d86ea
200 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating an attempt to lead the user to a harmful site. The heuristics suggest this is a lure for MFA or payment information theft. The document body, though heavily obfuscated, contains text related to 'sbi atm card application form sample', aligning with a phishing pretext. The presence of numerous external links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate destination.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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
  • 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=sbi+atm+card+application+form+sample
    • http://files.sweet2thdental.com/uploads/1/3/2/6/132696210/46129354c3dba.pdf
    • http://files.apolloacupuncture.com/uploads/1/3/1/4/131438423/5028310.pdf
    • http://files.foothillsbiblefellowship.com/uploads/1/3/0/7/130776592/3a061.pdf
    • https://cdn.shop
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/42145464930.pdf
    • https://cdn.shopify.com/s/files/1/0434/6707/9830/files/32726587962.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/bonepefurakodav.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/44567041259.pdf
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/47240091287.pdf
    • https://cdn.shopify.com/s/files/1/0430/9401/6157/files/bowexasosi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25618010541.pdf
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/43109298465.pdf
    • https://cdn.shopify.com/s/files/1/0439/6508/7902/files/22043498852.pdf
    • https://cdn.shopify.com/s/files/1/0436/8669/0969/files/35864430385.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/71340542590.pdf
    • https://cdn.shopify.com/s/files/1/0436/0211/6772/files/51446676222.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_off00008175.bin
4e115aa46a684375303686be19f557961ad70ecb370f26e8df6733f7c3ba5804
pdf-font-stream PDF embedded font (sfnt) at offset 0x8175 5332 bytes
font_01_sfnt_off00009365.bin
47d7b4c2660ec552718dddfd8a796acc85cda20c0d7f94cc289c8adca8e484b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9365 10156 bytes