Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c585d52e025536…

MALICIOUS

PDF

41.2 KB Created: 2020-08-31 22:27:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8747884515664164833db97742c76d93 SHA-1: c68e766c4ea0a9dd7ccf7a11329fc83117a050bb SHA-256: d6c585d52e0255364226fea030e80e862e6113f21ff0ad4c9a8e99fa769009b8
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com' with a query for 'command and conquer 4 crack', indicating a lure for potentially pirated software. It also functions as a link farm, distributing numerous PDFs hosted on Shopify. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be intended to trick users into providing a password for an archive, a common tactic to bypass gateway security. The primary attack vector appears to be social engineering via a malicious link embedded within the document.

Heuristics 4

  • 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.
  • 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.com/wix?keyword=command+and+conquer+4++crack
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/2908944229.pdf
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/zizanizanekuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/4568/2332/files/cctv_installation_training_courses.pdf
    • https://cdn.shopify.com/s/files/1/0436/1024/3229/files/dafaziwad.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/75282510287.pdf
    • https://cdn.shopify.com/s/files/1/0430/8644/6746/files/9357822049.pdf
    • https://cdn.shopify.com/s/files/1/0440/1908/9566/files/bsc_magazine_march_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0464/6302/5304/files/8988154366.pdf
    • https://cdn.shopify.com/s/files/1/0429/3689/3599/files/nivoberexepitifovawezidub.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/pewagitarerovite.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wijabogose.pdf
    • https://static.usrfiles.com/ugd/83e24f_69c295f6042f47dcb65f3067ef00d7d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_8f87965d5f114d34b7a3a0c71c8a95c7.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_d3b3c36847354571b3e61b5bc34571e8.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_off00006494.bin
f4244845a9ff11d074f7d6337ccf3b2a3880c0a3a821225fb4474e2ec11cab8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6494 5056 bytes
font_01_sfnt_off000075ad.bin
8c5b30692879b1fa94f1ad2c293c50246dddc69e35a4648c32b560b13075c976
pdf-font-stream PDF embedded font (sfnt) at offset 0x75AD 10328 bytes