Malicious PDF — malware analysis report

Static analysis result for SHA-256 2502f9234fe9b11e…

MALICIOUS

PDF

48.0 KB Created: 2020-07-26 03:29:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8df98ef02142756cca84353d3a9660a2 SHA-1: 8974f7a9ab532a6a4f291cc3fc9c4fa426830e50 SHA-256: 2502f9234fe9b11ebf1c62071a10d6b036113e4696db6af91f90ce4e250837e8
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.com'. Another critical heuristic identified a PDF link farm, with 'cdn.shopify.com' hosting numerous PDFs. The document body is heavily obfuscated, but the presence of these links strongly suggests a malicious intent to redirect the user to potentially harmful content or for SEO manipulation.

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=bhojpuri+in+song++video+gana+bihar
    • http://files.kansasmidwives.com/uploads/1/3/0/9/130969548/binumetabaraxoruju.pdf
    • http://files.dywfineart.com/uploads/1/3/1/4/131438460/de5f7c07d612.pdf
    • http://files.alxzandriachantiluke.co.uk/uploads/1/3/1/3/131379759/a6fd29388a.pdf
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna_sezomojodupebe.pdf
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/13081
    • https://cdn.shopify.com/s/files/1/0431/3301/0082/files/kazanutomurikod.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdf
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/80315618544.pdf
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/zonatawelisigodazosebisuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21884581804.pdf
    • https://cdn.shopify.com/s/files/1/0437/9780/7265/files/kekepon.pdf
    • https://cdn.shopify.com/s/files/1/0428/0808/2598/files/65457959474.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vukabisozudetilo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7335/5419/files/42909232415.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0945/files/guxalibituwuxuzil.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/rupefezuri.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062e6.bin
8e65e1e88b53c6f7ae1f9d068c0627bf7ee142f682437a75fa4ee3b0852e9fb2
pdf-font-stream PDF embedded font (sfnt) at offset 0x62E6 5316 bytes
font_01_sfnt_off000074ed.bin
5c06b15ae72d74525c0e775cee7ca94c6e78178a1c4363761ceea2fde0538de8
pdf-font-stream PDF embedded font (sfnt) at offset 0x74ED 12752 bytes
font_02_sfnt_off00009dc8.bin
7613ff6d95761f7f12f5b0c6afcae428ad2ea9c3f19e1940d0b0f46606f60b05
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DC8 5824 bytes