Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b516bee25c2190…

MALICIOUS

PDF

36.0 KB Created: 2020-08-21 02:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ca01a7d113c6a93a106340c9f303b83 SHA-1: b3dcd96f48e5424b979e2c3d29c5ae48c8336727 SHA-256: 35b516bee25c219062592aff6a061a578eaa4b3ab5f07ae7a58633d0e57967df
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body text, though heavily obfuscated, contains a URL that matches the redirector link found in the heuristics. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware delivery. The presence of numerous external PDF links further supports a link farm or redirection strategy.

Heuristics 3

  • 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.
  • 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=bsmmu+e+registration+card
    • http://xivitumi.ryanjamesvideo.com/uploads/1/3/1/4/131406801/sinixeramijizib_sikuru_januwerot_neroropenexu.pdf
    • http://files.traumamadesimple.com/uploads/1/3/0/7/130740124/tawuboritano.pdf
    • http://files.sidrahgardens.com.au/uploads/1/3/1/4/131453177/9453d3966afa7.pdf
    • http://files.magnificentheavens.com/uploads/1/3/1/0/131070591/josuk_wuwuwagaxanefok_fotusega.pdf
    • http://files.rescueridershorserescue.com/uploads/1/3/1/4/131438077/997527.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/65146647986.pdf
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/55075159460.pdf
    • https://cdn.shopify.com/s/files/1/0439/3920/1192/files/scratch_para_arduino.pdf
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/fululuxoxufagi.pdf
    • https://cdn.shopify.com/s/files/1/0436/5385/7433/files/5127497973.pdf
    • https://cdn.shopify.com/s/files/1/0432/0113/4747/files/vodudo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1095/files/sebemepezizagid.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/94928211952.pdf
    • https://cdn.shopify.com/s/files/1/0440/1994/1541/files/18343832945.pdf
    • https://cdn.shopify.com/s/files/1/0429/9620/3679/files/66367415761.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/74644493820.pdf
    • https://cdn.shopify.com/s/files/1/0437/3112/4385/files/xekudegomadodudo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/lisifarukavawidasupolo.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_off00005107.bin
9662a0e3833fa79105692e9ffa35fb788759bd8bed04ced333143a549f82d87e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5107 5276 bytes
font_01_sfnt_off000062d3.bin
ebd838c1a922543f20ccd607ee905ae472449fe495e0066e0ac977f1e5e54c0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x62D3 9388 bytes