Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ac138247f91e56…

MALICIOUS

PDF

44.8 KB Created: 2020-08-02 13:45:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83060c76d7fb8deda6d6346b58403618 SHA-1: 8d93e82e991eff76bb9433432f5386eca6ead312 SHA-256: c2ac138247f91e5643e4d52f6c0ffb06c402b4a75cb53338915a55028450068a
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=craftsman+router+table+manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are hosted on Shopify but also include several unknown domains. The document body, though heavily obfuscated, contains the same redirector URL. The primary attack pattern involves luring the user to this malicious URL, likely for subsequent phishing or malware delivery.

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.ru/pify?keyword=craftsman+router+table+manual
    • http://files.ktaentertainment246.com/uploads/1/3/1/4/131437977/suvafiputope-pivuk-pujevumuf-megoj.pdf
    • http://files.axismundihealing.com/uploads/1/3/0/7/130776819/6175727.pdf
    • http://files.minimebodysculpting.com/uploads/1/3/1/4/131438190/fajijexogupi.pdf
    • http://files.ncontrack.org/uploads/1/3/0/7/130775462/wexuv_pizub.pdf
    • http://files.a4crossfit.com/uploads/1/3/2/6/132695418/5a523af143.pdf
    • https://cdn.shopify.com/s/files/1/0440/5837/8392/files/54344734697.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/salebepesaruxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2501/4684/files/fagenonemugivosowilufobov.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/lezutis.pdf
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/98953179450.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/kusuxaxarikuki.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/xelojunut.pdf
    • https://cdn.shopify.com/s/files/1/0430/1901/0201/files/voxedu.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/target_job_application.pdf
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/41187070199.pdf
    • https://cdn.shopify.com/s/files/1/0429/1058/0902/files/58768332859.pdf
    • https://cdn.shopify.com/s/files/1/0429/5432/6179/files/60345134508.pdf
    • https://cdn.shopify.com/s/files/1/0431/4156/2522/files/72347870573.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_off000065db.bin
cc08f973a9f5f0b26a75e3136540ab17589b9a3116c536ef0a9ee783344c6909
pdf-font-stream PDF embedded font (sfnt) at offset 0x65DB 4908 bytes
font_01_sfnt_off0000766f.bin
fe499f815bcf38548d5a1a3ddab6f0c6625fdbc81200dad4c8e08bc540b5aaa1
pdf-font-stream PDF embedded font (sfnt) at offset 0x766F 9776 bytes
font_02_sfnt_off000097ed.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x97ED 4324 bytes