Malicious PDF — malware analysis report

Static analysis result for SHA-256 2594bc6db4adf561…

MALICIOUS

PDF

61.3 KB Created: 2020-08-01 02:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 412789d5d9932e91236affa7b709f349 SHA-1: 7f44ef89ce1c073253df45368ae64248f63c495b SHA-256: 2594bc6db4adf561054f7cde612703eea733194ffeaac538c168c8201e09b1d9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=minecraft+dwarfs+vs+zombies, suggesting a lure related to gaming to entice users to click the malicious link. No scripts were extracted from this sample.

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=minecraft+dwarfs+vs+zombies
    • http://files.csidelivers.com/uploads/1/3/1/1/131163561/furur_jifopolixolaka_jutajavi_kugusu.pdf
    • http://files.innovationneighborhoodphl.com/uploads/1/3/1/0/131070389/9e0b40.pdf
    • http://files.brooksidevt.net/uploads/1/3/1/4/131453194/tetajonazerakuvali.pdf
    • http://files.clarolife.com/uploads/1/3/0/8/130873783/waxot_fapodidow_mirotixikanul.pdf
    • https://cdn.shopify.com/s/files/1/0432/6821/0852/files/radelatupobi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/65820569574.pdf
    • https://cdn.shopify.com/s/files/1/0435/3500/7893/files/nadabogidagagijuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6618/files/75680597749.pdf
    • https://cdn.shopify.com/s/files/1/0432/8456/2086/files/39519281377.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/10704516579.pdf
    • https://cdn.shopify.com/s/files/1/0432/7368/3100/files/kidefujivawova.pdf
    • https://cdn.shopify.com/s/files/1/0428/7715/7542/files/falajunelemulogomid.pdf
    • https://cdn.shopify.com/s/files/1/0429/2208/2460/files/35594764753.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/fabesiso.pdf
    • https://cdn.shopify.com/s/files/1/0427/7485/5846/files/druid_forms_5e.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/zovenexomupo.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_off0000a3a7.bin
a614f5f4ec8c2e5f1f61f86cb80dff7c03d93f1af0d12019c0939572f4ae5ab4
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3A7 5268 bytes
font_01_sfnt_off0000b595.bin
81bcda12a55d3a5133f6ad52021857d41b3bccc7bbacb1c22ed60197b11066e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xB595 10668 bytes
font_02_sfnt_off0000da12.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA12 4324 bytes