Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6bb6209c766424…

MALICIOUS

PDF

48.1 KB Created: 2020-08-30 13:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1fdd3da2f8dfdb379ab6b23f4403e4b5 SHA-1: 1260fdb962b4292955a426d0506c0322ffe7ee3c SHA-256: db6bb6209c766424774e4d09078c8212394018e4c7e2739c8ed8125b5f3574fe
200 Risk Score

Malware Insights

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

The PDF document contains a link to a malicious redirector, ttraff.cc, which is disguised as a "Kasper trial reset" lure. The document also instructs the user to disable security software and provides a password for an archive, indicating a multi-stage attack. The presence of numerous external PDF links suggests a link farm for SEO poisoning or traffic generation. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.cc/wix?keyword=kasper+trial+reset
    • https://static.usrfiles.com/ugd/b8c837_253cc0ff78e042fdb1ed281ec2f3713b.pdf
    • https://static.usrfiles.com/ugd/b8c837_75d5d82399a74aec98401ac42c2378e0.pdf
    • https://static.usrfiles.com/ugd/b8c837_5ab1b82ed94e4ee587a8b5fe8d80a4df.pdf
    • https://static.usrfiles.com/ugd/824332_b92abf10ff014528ae198eac654f0856.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/19731148987.pdf
    • https://cdn.shopify.com/s/files/1/0433/7483/7918/files/kakizedorolugepirux.pdf
    • https://cdn.shopify.com/s/files/1/0429/6074/8695/files/15769979941.pdf
    • https://cdn.shopify.com/s/files/1/0432/6444/2521/files/the_internet_archive_movie_hollywood.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/kunavugejeraw.pdf
    • https://cdn.shopify.com/s/files/1/0435/5247/3243/files/36227542145.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/varunedu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/65175581345.pdf
    • https://cdn.shopify.com/s/files/1/0437/6467/8817/files/bulepoxer.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/netetogirapatuf.pdf
    • https://cdn.shopify.com/s/files/1/0460/1954/3199/files/86645023823.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f7d.bin
a9ada17af99e610b6ff964e2fdc3cba561bb398b5d8488391dbc0aab9c07e225		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7D 4352 bytes
font_01_sfnt_off00006e4e.bin
e4e52655ebab677102ce027535a1c7e026a2238a411c10ec265f78ddb9ba1ac3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4E 9948 bytes
font_02_sfnt_off00009098.bin
2bac0d7445fe5768be44ad7a0943804bdfa4a71883f7703ca85e4e7e3f76abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9098 16100 bytes
font_03_sfnt_off0000a561.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA561 4324 bytes

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