Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8f5022e3d0a78be…

MALICIOUS

PDF

48.8 KB Created: 2020-08-05 17:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80f35aa14d40a80cabde80ad2d577b7c SHA-1: 5a049e151fc0ac8d695a7bee6efdfc30b6796340 SHA-256: d8f5022e3d0a78be3f6e11b978d0e183c80e8680b338c87adfad5466ec526ec8
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=bottle+washer+in+beverage+industry+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to a malicious site disguised as a document. The presence of multiple Shopify links, while some are benign, contributes to a link farm tactic.

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=bottle+washer+in+beverage+industry+pdf
    • http://files.vagabondphilosopher.com/uploads/1/3/2/6/132681502/4823649.pdf
    • http://ruxadinu.resumescripter.com/uploads/1/3/1/8/131856584/1610401.pdf
    • http://files.amdm.org/uploads/1/3/1/6/131637881/goxetorovavi-xodebak-tepumupowol.pdf
    • http://files.sydneyinsightmeditators.org/uploads/1/3/1/3/131381976/1be572.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/merexibigonewotejetotid.pdf
    • https://cdn.shopify.com/s/files/1/0431/4457/7178/files/tujufalotakofodomifekame.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76588695657.pdf
    • https://cdn.shopify.com/s/files/1/0431/7085/7122/files/jarvis_physical_examination_and_health_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/tofanijuwodexogowemoxiva.pdf
    • https://cdn.shopify.com/s/files/1/0429/0543/6326/files/33724717385.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/tedujaxuxixusanunokigivoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/folufolokuzixijomuru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.pdf
    • https://cdn.shopify.com/s/files/1/0436/9409/6539/files/sujozu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9403/9975/files/inverse_matrix_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0429/3420/6631/files/8928783052.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/napufodux.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_off00006a2c.bin
7b6cd80a2bf3645486fe0841fa221fdae75eba7086c5a49c2b66fe51fc88547c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2C 5628 bytes
font_01_sfnt_off00007d58.bin
d3bf68ff8f2b7f93ac0dda6685f76248dbc1ea725e11dfb33f31ffd8c2b22fcc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D58 13148 bytes
font_02_sfnt_off0000a763.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA763 4324 bytes