Malicious PDF — malware analysis report

Static analysis result for SHA-256 2182339406f57845…

MALICIOUS

PDF

71.4 KB Created: 2020-08-25 04:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fa25d1b197ec821ed7eafe8ab16bd6b SHA-1: 7b475ff78b94726a8f6c873a6ec42d6aa71d774e SHA-256: 2182339406f57845b2be6355ef1950469517a346660a73ebc83ef02f419545bd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.ru. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to obscure the final malicious destination. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the 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.ru/pify?keyword=recalcitrant+compounds+pdf
    • http://nikobu.brianmmills.com/uploads/1/3/2/6/132682076/gawinadakag.pdf
    • http://files.sacredive.com/uploads/1/3/1/6/131637081/jazomosepokesav.pdf
    • http://files.thefibreshop.com/uploads/1/3/1/3/131382841/zadugas-rilaxejalibome-kudonozipobibap-saluwodukosefom.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8845/files/41951825077.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/acquired_aplastic_anemia.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/leatherworker_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/2765/9932/files/the_aeneid_latin.pdf
    • https://cdn.shopify.com/s/files/1/0432/2027/1272/files/netflix_app_windows_7_laptop.pdf
    • https://cdn.shopify.com/s/files/1/0436/8619/9461/files/lower_back_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/ketow.pdf
    • https://cdn.shopify.com/s/files/1/0429/2204/9695/files/faketalafojolimafaguro.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/bjt_transistor_as_a_switch.pdf
    • https://cdn.shopify.com/s/files/1/0448/0958/4802/files/brahms_hungarian_dance_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/55491721721.pdf
    • https://cdn.shopify.com/s/files/1/0437/2486/5685/files/stairs_bunk_bed_plans.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/82586316777.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/management_of_type_2_diabetes_mellitus.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_off0000ce49.bin
78eb51c8e96e7b4953e87d5f4de62658583e8cad4cab3de2d948fed7d861d6ea
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE49 5192 bytes
font_01_sfnt_off0000dfcc.bin
3ee76f58e6ed33f792f1d75615a2c62f923eea83879154ffed2b860ee3af43fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCC 10000 bytes
font_02_sfnt_off00010216.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x10216 4324 bytes