Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4046f1fbe46318…

MALICIOUS

PDF

61.2 KB Created: 2020-09-04 16:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55d340b71f59f36eb0deed68abb19ad9 SHA-1: 039c78c518dc6741cecd7b2169491aaa98c7c71e SHA-256: 2b4046f1fbe4631889c9c2deb2a13dba2c65418adaf979e4e501a85ce1ed860e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=amsterdam+tourist+information+bahnhof'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into visiting a potentially harmful site. The file also contains a large number of embedded links, many of which point to external PDFs, indicating a link farm or redirection strategy. 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.me/wix?keyword=amsterdam+tourist+information+bahnhof
    • https://static.usrfiles.com/ugd/f4de5e_319a6e6bdc5d4d5c9f36a7d2c22f1c00.pdf
    • https://static.usrfiles.com/ugd/e4f6f0_cf7110fd70ef435899178d97a09b4650.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f33da28321c406381cb980a03448b05.pdf
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/pisojojepologapefejifad.pdf
    • https://cdn.shopify.com/s/files/1/0437/2607/8101/files/pokemon_ultra_moon_route_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/warcraft_armies_of_azeroth.pdf
    • https://cdn.shopify.com/s/files/1/0435/0532/0088/files/survivor_season_28_online.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/gizemulotowulinutoxewiti.pdf
    • https://cdn.shopify.com/s/files/1/0437/5661/7877/files/zoxedaruj.pdf
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/64978092995.pdf
    • https://static.usrfiles.com/ugd/b73feb_a760f4f95f594db2952a152e51d0f926.pdf
    • https://static.usrfiles.com/ugd/3c8574_9b4852c45ada4f94a7cfbcd6c52ec12d.pdf
    • https://static.usrfiles.com/ugd/48d9a1_16010d1edf51438ba025b3c635758acb.pdf
    • https://static.usrfiles.com/ugd/fd4c29_97aa1899b0f3427eaa2ad0df7c53bc3b.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006838.bin
7f5d01bd38d3f22b79e4ee51c4dac4052fa557ae0ee0f062addbde71ddca5f13
pdf-font-stream PDF embedded font (sfnt) at offset 0x6838 5244 bytes
font_01_sfnt_off000079d7.bin
e793fffb934f8d6909729e01ed7d652486c198307182bf3be3574fe0629e7a51
pdf-font-stream PDF embedded font (sfnt) at offset 0x79D7 13136 bytes
font_02_sfnt_off0000a178.bin
9e82e7fc7293ae0217a883d6535560076c19c8e5ff5ec0f2acdfbfa52d081243
pdf-font-stream PDF embedded font (sfnt) at offset 0xA178 11052 bytes
font_03_sfnt_off0000c740.bin
030be8d6a816713a00b0fb9dc706f78f77e267cba1cb127c6d206175bd138a39
pdf-font-stream PDF embedded font (sfnt) at offset 0xC740 16964 bytes
font_04_sfnt_off0000df34.bin
1648accd5638f26481c437d0e436fdfb03edab78dab75f4e73239278c8cddc19
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF34 1736 bytes