Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fbf7ae73e9147d7…

MALICIOUS

PDF

39.2 KB Created: 2020-08-31 04:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c04a1e09df3223888f4d41d255acfcbe SHA-1: 04b4d43da6d36fb9aa8b82954f037a91ca6fd98f SHA-256: 4fbf7ae73e9147d7243aa1cbbb3594749e11dd0a53f3fe1120802f4ba3b6c234
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The presence of a 'download button' heuristic and the document body text mentioning 'Pdf to dst converter' suggests a social engineering lure. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pdf+to+dst+converter
    • https://static.usrfiles.com/ugd/ab63e3_36f94030a0ef45a581f795dfbab6f230.pdf
    • https://static.usrfiles.com/ugd/b8c837_a890250f56a84113a07372589ff5293c.pdf
    • https://static.usrfiles.com/ugd/d2751c_8261b2ccf00243b2bea1557e5b19d79c.pdf
    • https://static.usrfiles.com/ugd/5ecadc_30beb0baae1a40f493f681607cbfbf2f.pdf
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/nasoviporegimopidolibef.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/vekabolorubiwejalewimawu.pdf
    • https://cdn.shopify.com/s/files/1/0440/1112/6942/files/rikibiwalevevupubejedanat.pdf
    • https://cdn.shopify.com/s/files/1/0450/3034/2806/files/blanchard_macroeconomics_global_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/chrono_cross_ps1_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/0545/2193/files/1292298294.pdf
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/kikogokusid.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_off00005dbf.bin
3443e75841f2689fbcac87f24b58e02e45fbfb8d0852186a37266e4301184677		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBF 4836 bytes
font_01_sfnt_off00006e42.bin
9056239414d9ba580f17067444c547f3e6fe6241af5785e959eac51483570ece		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E42 10068 bytes

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