Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddf5ed6ed1695acc…

MALICIOUS

PDF

81.7 KB Created: 2020-09-07 13:09:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 463d8b95eb5731c1f8c6a2d7ffccad75 SHA-1: 94a627633dba0a67672225bf773b84dac6bded7b SHA-256: ddf5ed6ed1695acc778c3e5fc834f0594cf6b1665362cca4b04b493b3cbf3f10
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=acid+rain+full+information'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a phishing or redirection attempt.

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/wix?keyword=acid+rain+full+information
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/jekawap.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/molarity_and_dilution_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9265/6799/files/53497063943.pdf
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/fozul.pdf
    • https://static.usrfiles.com/ugd/b8c837_449b2338c7df4bd79634cab84a69969d.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_2aef213ec3a844e0a375f2c1a201d2de.pdf
    • https://static.usrfiles.com/ugd/ac0094_f02eefa5284f4acca3239592e6684cd8.pdf
    • https://static.usrfiles.com/ugd/87b9a8_83a83753b8d449eb9d68a6c72fec8b3b.pdf
    • https://static.usrfiles.com/ugd/ceb2e8_828d40b6075842f382c1ccced428649a.pdf
    • https://cdn.shopify.com/s/files/1/0437/6163/1389/files/aisi_321.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8954/files/bulawayo_polytechnic_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/96329492430.pdf
    • https://cdn.shopify.com/s/files/1/0440/5516/7126/files/jazalezimewe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7510/7992/files/bigger_than_hip_hop.pdf
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/brackets_punctuation_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/butterball_electric_fryer_xl_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6277/8263/files/povukonekiwakuxidu.pdf
    • https://cdn.shopify.com/s/files/1/0447/0053/2889/files/what_is_a_performance_practice_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/8669/1998/files/sevoba.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_off0000ee63.bin
6634c392c73a4939071dbcba88cb689e901f69e258b9ba5487fce7f6958ad07e
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE63 4976 bytes
font_01_sfnt_off0000ff41.bin
318802742731942591e0e195b5fc0fa0fa353e9dbc67243e30ba27e8c332edf3
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF41 10856 bytes
font_02_sfnt_off0001245b.bin
e8be64a599b4775abf69106d1ea2a605297721d8ccc8071fb3d67c702b09cfa6
pdf-font-stream PDF embedded font (sfnt) at offset 0x1245B 16100 bytes