Malicious PDF — malware analysis report

Static analysis result for SHA-256 26adb43530442462…

MALICIOUS

PDF

60.2 KB Created: 2020-09-02 21:25:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ec8dfa6f76510c71f48781c02e15e98 SHA-1: a18510d395162715e903e893c8ddcffd948af24d SHA-256: 26adb435304424626a49390b81e7de960b9036e38bdf305480017a8bfef1cc18
160 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, disguised as a free template download. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the presence of the URL 'https://ttraff.ru/pify?keyword=web+designer+portfolio+template+free' strongly indicate a phishing or redirection attempt. Additionally, the heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may contain instructions or embedded commands for execution, potentially involving PowerShell, as hinted by one of the linked benign Shopify URLs. The document body, though heavily obfuscated, contains the same lure text and URLs.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=web+designer+portfolio+template+free
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/powershell_change_password.pdf
    • https://cdn.shopify.com/s/files/1/0431/7977/0019/files/transformer_buchholz_relay_protection.pdf
    • https://cdn.shopify.com/s/files/1/0431/4873/8720/files/baby_g_shock_manual_5134.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30151397197.pdf
    • https://cdn.shopify.com/s/files/1/0437/3600/6817/files/22129997385.pdf
    • https://cdn.shopify.com/s/files/1/0436/2856/0547/files/initial_treatment_of_hypertension_nejm.pdf
    • https://cdn.shopify.com/s/files/1/0430/2484/2906/files/calcutta_university_cbcs_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/40859271791.pdf
    • https://cdn.shopify.com/s/files/1/0435/2016/3999/files/aikido_training_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/81077878141.pdf
    • https://cdn.shopify.com/s/files/1/0435/5670/0319/files/13811865575.pdf
    • https://cdn.shopify.com/s/files/1/0432/4127/5547/files/vanelujilurowoxunakaz.pdf
    • https://cdn.shopify.com/s/files/1/0461/4992/7075/files/o_coelho_sabido.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b07b.bin
9beda0be3c461268f2c794f4e80b00c4ca702b3459cceefdc93404c0da53f208
pdf-font-stream PDF embedded font (sfnt) at offset 0xB07B 5516 bytes
font_01_sfnt_off0000c329.bin
d69e6658e4a8bb6a02a2339b1804b2f11e152671fa8b7baba7c51a714de3b3d6
pdf-font-stream PDF embedded font (sfnt) at offset 0xC329 9588 bytes