Malicious PDF — malware analysis report

Static analysis result for SHA-256 b053a43a389d1dc2…

MALICIOUS

PDF

56.4 KB Created: 2020-08-14 01:16:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a489310d55ff77ce4587d92e87726a6 SHA-1: 61938b3e5ebdfffea965f90d3b910d244424737d SHA-256: b053a43a389d1dc2c1aedfa29d5de76e2d761d144189e52419049fb81a9ee337
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 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same redirect URL, suggesting the primary intent is to drive traffic to malicious infrastructure. 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.com/pify?keyword=psoriasiform+dermatitis+differential+diagnosis
    • http://files.hedcut.com/uploads/1/3/0/7/130738531/1194355.pdf
    • http://files.elopechattanooga.com/uploads/1/3/0/7/130776821/zoname.pdf
    • http://files.kitchen-519.com/uploads/1/3/0/7/130775471/a79112aaf3815ae.pdf
    • http://rapuxe.creaturecomfortstm.com/uploads/1/3/1/3/131379485/kelukatim.pdf
    • https://cdn.shopify.com/s/files/1/0447/9392/1685/files/arcpy_spatial_join.pdf
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/32099817196.pdf
    • https://cdn.shopify.com/s/files/1/0432/9134/5064/files/18552842134.pdf
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/mla_format_citing_two_authors_in_text.pdf
    • https://cdn.shopify.com/s/files/1/0430/8808/5143/files/705958337.pdf
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/alcoholismo_y_drogadiccion_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9561/files/intermediate_financial_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/30198473276.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/99788281566.pdf
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/36814938339.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mevadijuxirefasu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/biological_control_of_pest_and_diseases.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_off000098a9.bin
f27f5852ac2c68476cfc2b4ceaea0f79c7a7441cd9943d36923711ada62ac113		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98A9 5228 bytes
font_01_sfnt_off0000aa58.bin
95bec6358d7c475d6f1d0ebb43df33c583c4a9bc89d7e63aa65bd52c849f1c04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA58 12520 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.