Malicious PDF — malware analysis report

Static analysis result for SHA-256 19d969793436191f…

MALICIOUS

PDF

63.1 KB Created: 2020-08-10 07:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dbf077b28381885a195a6af4bfe2f36d SHA-1: 6950f1af80f447ada1bc806d5777e1945d680de5 SHA-256: 19d969793436191f364726b41fb18bbf9d7203ad29b73a74a03f09c93dc81411
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL disguised as a tutorial. The SE_INVOICE_LURE heuristic suggests a deceptive intent, likely to trick users into clicking the malicious link. The primary malicious URL is https://ttraff.com/pify?keyword=active+directory+windows+server+2020+tutorial+pdf, which is designed to redirect users to potentially harmful content. No scripts were extracted from this sample.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=active+directory+windows+server+2020+tutorial+pdf
    • http://files.tx-20081afjrotc.com/uploads/1/3/1/3/131398605/d3f693b63800350.pdf
    • http://files.hudsoncobras.com/uploads/1/3/2/6/132695352/1898339.pdf
    • http://files.mndeathcollaborative.com/uploads/1/3/1/4/131406149/3b1094d83d.pdf
    • http://files.admagellan.com/uploads/1/3/0/8/130815228/8866991.pdf
    • http://mikal.investphilippinesindia.org/uploads/1/3/0/9/130969723/9043575.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.pdf
    • https://cdn.shopify.com/s/files/1/0440/8960/6294/files/lupoverewimomeguz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/attitudinal_and_behavioral_loyalty.pdf
    • https://cdn.shopify.com/s/files/1/0429/5501/4297/files/blackbird_tabs.pdf
    • https://cdn.shopify.com/s/files/1/0450/3640/4900/files/corpus_linguistics_tony_mcenery_andrew_wilson.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/21933902181.pdf
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/cateye_mighty_8.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jegatakufiritejat.pdf
    • https://cdn.shopify.com/s/files/1/0429/1375/9395/files/liduwasipomozenajitajor.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f9e.bin
9bd7173ee465cab61af9f042c5f620231a3bd1ff221aa43f88f1ec5917e24c44
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9E 5664 bytes
font_01_sfnt_off0000a316.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0xA316 1800 bytes
font_02_sfnt_off0000aba4.bin
82cdb4e90ba9abc002815c6ccae6bdfdfdb38376059b703abb88f1900994a11e
pdf-font-stream PDF embedded font (sfnt) at offset 0xABA4 14212 bytes
font_03_sfnt_off0000d872.bin
531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660
pdf-font-stream PDF embedded font (sfnt) at offset 0xD872 16312 bytes