Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb2b7e702e149b04…

MALICIOUS

PDF

45.5 KB Created: 2020-08-31 01:23:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7d17a6e699dac04c0f1a2623265d1dc SHA-1: ef9417b992571ee749141fc280e0b185e66ad1d5 SHA-256: cb2b7e702e149b04f72629485d2c1f84cd3401461c11a35ab0b65242780b07d1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely part of a phishing or malware distribution campaign. Additionally, the document body contains text and embedded URLs that suggest a lure to trick the user into executing commands via their clipboard. The presence of a link farm further indicates an attempt to manipulate search engine results or distribute content broadly. The primary intent appears to be social engineering to execute arbitrary commands.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.ru/wix?keyword=fallout+new+california+fix+the+old+c
    • https://static.usrfiles.com/ugd/b8c837_38f7c5566bac4346964b40250b055254.pdf
    • https://static.usrfiles.com/ugd/6cf0f5_a28120537a2e44729d1bbc7a405a5a91.pdf
    • https://static.usrfiles.com/ugd/4725f1_273efb5d56984e4a8585de1d2d40cd99.pdf
    • https://static.usrfiles.com/ugd/f63f29_eb21a6f12aec418a959a82180eb34057.pdf
    • https://static.usrfiles.com/ugd/a107db_3ff2d764395a4931b45cbcd368d9cdfb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35035436777.pdf
    • https://cdn.shopify.com/s/files/1/0431/9268/0611/files/lexiteroziwumiferenu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6440/7702/files/5883064319.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/retinoblastoma_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0462/0615/6953/files/praise_you_in_this_storm_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5876/files/ashes_of_love_drama_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9868/files/dinner_a_bath_or_me.pdf
    • https://cdn.shopify.com/s/files/1/0431/3976/0295/files/pujos.pdf
    • https://cdn.shopify.com/s/files/1/0430/9696/5269/files/2740355791.pdf
    • https://static.usrfiles.com/ugd/de3d83_6b8cf802d1c347de8285d1c80808a6d0.pdf
    • https://static.usrfiles.com/ugd/271e65_6679299800664a4a876e5e298a3b6836.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_off00006d9d.bin
17cfc5608486f7b4024da7c888a93ce2e150adbf1b7495c12d20230c9a95c70e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9D 5044 bytes
font_01_sfnt_off00007eda.bin
904567423bd33a1bbfacc1bcae98a418c4b3911c09d4b2887c12df091b7bc3f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDA 13256 bytes