Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4889142b99c4cfb…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 01:01:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 717ba12e00d074ce2dafea0e71490a9a SHA-1: c81da930e27735f5165dbed1f6199ceb4805153d SHA-256: c4889142b99c4cfb99b3efec3305a5d1a2f54f24b810b2b843f10d09d1facdcf
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a link farm SEO tactic to disguise malicious redirection. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious intent. No scripts were extracted, and the PDF structure itself is the primary vector for the attack.

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/wb?keyword=smart%20city%20examples%20pdf
    • http://files.bpm-team.com/uploads/1/3/0/9/130969681/1f885a.pdf
    • http://roketagej.logandmelton.com/uploads/1/3/0/7/130739220/6720995.pdf
    • http://jojidiw.taigakoira.net/uploads/1/3/0/8/130874049/devike_jarelozake_mewuxaz_larujesovavot.pdf
    • https://cdn.shopify.com/s/files/1/0428/0310/1863/files/dimomiwuvonivavutosifil.pdf
    • https://cdn.shopify.com/s/files/1/0436/2996/9561/files/60513918619.pdf
    • https://cdn.shopify.com/s/files/1/0434/5135/1200/files/94061361776.pdf
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/77353441854.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/bozazixaduxem.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/35320992202.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/60968492370.pdf
    • https://cdn.shopify.com/s/files/1/0433/4623/1449/files/1993_aashto_flexible_pavement_structural_design.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/21999645458.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/94915375770.pdf
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/vezezejexike.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0557/files/basic_life_support_for_healthcare_providers_american_red_cross.pdf
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/70665671668.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_off00006734.bin
bc46cc05aca2faab6e227a8d5ca885382ae4571ee07e898a91f15881773b045f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6734 5572 bytes
font_01_sfnt_off00007a15.bin
a19e107e27534cc05b92dff94bcd294f5067888840cc5964466a7af31477cd1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A15 10516 bytes

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