Malicious PDF — malware analysis report

Static analysis result for SHA-256 e928ce36f5c245c6…

MALICIOUS

PDF

41.7 KB Created: 2020-08-30 01:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54cf70acd7064a096647aca6931e4a73 SHA-1: 6ea1c80d5147a62ee1b088001b3adac0827c511d SHA-256: e928ce36f5c245c6259b1ea29fba690e65819c047c99560df3ad3fd222815121
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=kenworth+t370+operator%2527s+manual'. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on static.usrfiles.com. This suggests a phishing or scam attempt where the user is tricked into downloading or visiting a malicious site under the guise of accessing a manual.

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.me/wix?keyword=kenworth+t370+operator%2527s+manual
    • https://static.usrfiles.com/ugd/65b209_f409c1711300410f9f231cf35229454e.pdf
    • https://static.usrfiles.com/ugd/33a16d_ab62406cdf7647ea8cbd76680707d372.pdf
    • https://static.usrfiles.com/ugd/10e3af_d5675a60a65349b5be2b18a022998c64.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_6f7080f763e14e00abe1e929433e8768.pdf
    • https://static.usrfiles.com/ugd/576447_316ca9126cc840d1b42748043962c1fb.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/pokizeluz.pdf
    • https://cdn.shopify.com/s/files/1/0436/5064/6169/files/60856347141.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa45744545c741968350e6445c0ffc5f.pdf
    • https://static.usrfiles.com/ugd/b8c837_eba7bf65c2c84f02a6739c84ebca9f86.pdf
    • https://static.usrfiles.com/ugd/5926b4_2cf0b2a619e24a21a55c0c0726c547e5.pdf
    • https://static.usrfiles.com/ugd/1fbf8b_6c25e0b1e3454231a54ec1ac463f6513.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_332a6af93cd74de2bd22bf25331e50f6.pdf
    • https://static.usrfiles.com/ugd/76156b_3206c328774a4a1b81e2f9fbd9b3bdce.pdf
    • https://static.usrfiles.com/ugd/de65f7_5cbdacf9ccdb4633bfaf541af6b53124.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf60f71e75e84616866dc899ae96b425.pdf
    • https://static.usrfiles.com/ugd/fe83c3_074bf474629c4d599583d06ad8eb0a5c.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_off0000652d.bin
324a1b2d1d3d7bdc231bcbdef33262102fbba102b9ec139682c6db760b4c92d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x652D 5540 bytes
font_01_sfnt_off000077f7.bin
da50ca68cc51b3070c83e2ba9edba2c48b7b91ba228a3fd1ff172dd18a20531d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77F7 9756 bytes

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