Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb3f94f86370fe31…

MALICIOUS

PDF

43.8 KB Created: 2020-09-01 07:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a3ce6107bcbc060e42be75aa640c1ef SHA-1: 58c855728707be5f899ef08c019de0bb490b6148 SHA-256: fb3f94f86370fe31f1180b7d7d179d4fb72ec3c156ec1562c1a3c92d5c65c991
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. This URL is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, also contains this URL and numerous other links to 'static.usrfiles.com', which are likely part of a link farm to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.cc/wix?keyword=reporter+newspaper+amharic+news
    • https://static.usrfiles.com/ugd/eaf48f_4cb7eb1dda7141d987fd30400a48c3c9.pdf
    • https://static.usrfiles.com/ugd/724bd4_31a69a1a08f644f3b6a6269524ef8766.pdf
    • https://static.usrfiles.com/ugd/9f6a24_3134ae5d478746a69139d73c0d95db6d.pdf
    • https://static.usrfiles.com/ugd/b8c837_e97a4c2bb7ae48c3aba4fe4fdf46d109.pdf
    • https://static.usrfiles.com/ugd/b8c837_fae215fcc8554218abf0cf5653c3ead0.pdf
    • https://static.usrfiles.com/ugd/6290de_628bd56e17654a4db7e2689095288944.pdf
    • https://static.usrfiles.com/ugd/b8c837_f2064d3c78744ef2b5c2de59655860cf.pdf
    • https://static.usrfiles.com/ugd/b48b60_10757538254a415297d0b4ddf17c6a40.pdf
    • https://static.usrfiles.com/ugd/10a4aa_bead9e03d3b947ca9d8db561436e28b2.pdf
    • https://static.usrfiles.com/ugd/576447_9721741f631f425aadc1d94fa8c89101.pdf
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/knife_shield_gungeon.pdf
    • https://cdn.shopify.com/s/files/1/0436/2895/3763/files/quantifiers_worksheets_grade_4.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005008.bin
c401773e009aea9f578e2662ddbb29639ed577a445cccb4f5560d3cacf2bd62e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5008 11448 bytes
font_01_sfnt_off00006ef1.bin
94df74cf76c4c68f3c52e333155f3534f419f3b15786f569eb6de6deaa8cf65e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF1 5240 bytes
font_02_sfnt_off000080b3.bin
dbffdcaf13568d8a1cea1ccfd490786bfd8f373dfdd8760f51fb8c69f1c6f2d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80B3 9876 bytes

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