Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d34ec549849e40d…

MALICIOUS

PDF

46.2 KB Created: 2020-08-07 23:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74eff0daf91f98f36d13e45eac5095a1 SHA-1: b1b23e5499c2276abb84eaad3591deb146f606b6 SHA-256: 2d34ec549849e40def45a204f4b367c3aec6b26f8df625e1586b019b19b7f7de
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as an essay. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the document is part of a link farm, likely to improve search engine ranking for malicious content. The embedded URL points to a redirector that likely serves further malicious content or phishing pages.

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=alcoholism+essay+pdf
    • http://files.helpofbeaufort.org/uploads/1/3/1/3/131379149/mujevi_bogugarumo_faliro.pdf
    • http://xibumimig.vegaestudios.net/uploads/1/3/0/7/130775727/63f3e.pdf
    • http://files.estatecomputers.net/uploads/1/3/1/8/131857970/7977666.pdf
    • http://files.mytrucutz.com/uploads/1/3/2/6/132682745/koxin_joropikopezefe_taworexirejudef_mikizudi.pdf
    • http://files.danandcloverhomebb.com/uploads/1/3/0/9/130969154/xemifoxajexo.pdf
    • http://files.mytrucutz.com/uploads/1/3/2/6/132682745/koxin_joropikopeze
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/black_seed_oil_side_effects.pdf
    • https://cdn.shopify.com/s/files/1/0436/0231/3373/files/sesetojeleto.pdf
    • https://cdn.shopify.com/s/files/1/0432/9167/2736/files/14621218254.pdf
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/jijoporevosozuxes.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/mod_menu_for_gta_5_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0433/7028/3166/files/daigremontiana_kalanchoe_aranto.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikakaxudote.pdf
    • https://cdn.shopify.com/s/files/1/0434/2389/1618/files/fotolupinokikukesudu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/65389703917.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/21360303530.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/20911008583.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_off000068b2.bin
071cbb7bef3170f4b661507c89dcba6a814908b7fa29931721d7fe2755f84a67
pdf-font-stream PDF embedded font (sfnt) at offset 0x68B2 4992 bytes
font_01_sfnt_off000079a5.bin
78bd854ad84e9fd7fab17e385db429a87b40e7b5bd321df30cadffb704fd11e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 10504 bytes
font_02_sfnt_off00009d83.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D83 4324 bytes