Malicious PDF — malware analysis report

Static analysis result for SHA-256 327cbc717601f011…

MALICIOUS

PDF

57.0 KB Created: 2020-09-02 02:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3e3c07a653298dbbb24b4f489f9b142 SHA-1: 1c9787ea6816e7ccd922815a7669a5bd9393aa0f SHA-256: 327cbc717601f01106d43745c74a42e7d7deac935776c48a8daac1b974d238ce
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, which is a common lure for phishing attacks. The document body, though heavily obfuscated, contains the URL that the heuristic identified as a malicious redirector. The PDF also contains a link farm pointing to numerous other PDFs, likely for SEO poisoning or to obscure the malicious intent.

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.com/wix?keyword=automation+anywhere+control+room+user+manual
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/69190553442.pdf
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/19382844652.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/tetokazudebut.pdf
    • https://cdn.shopify.com/s/files/1/0439/4031/5294/files/morananopijujiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/7806/5055/files/24163179957.pdf
    • https://static.usrfiles.com/ugd/97368a_2c4eedaa9020453db07a09099d578509.pdf
    • https://static.usrfiles.com/ugd/85d67f_5ba00991d6824b5bab3592e66f028196.pdf
    • https://static.usrfiles.com/ugd/078c79_8ed4992e228846f8bb8d96878a1e7a70.pdf
    • https://static.usrfiles.com/ugd/8acad3_e6c285bf6fb744bc92a1a17a9734ba43.pdf
    • https://static.usrfiles.com/ugd/108936_f6180770a08f47498ad443a8e876687d.pdf
    • https://static.usrfiles.com/ugd/bfbc46_1eeab2f0f7f94fb48fff81cc548ec64d.pdf
    • https://static.usrfiles.com/ugd/dcfb95_6898d0e3dd8b47ec8e4e52ae2415f9bc.pdf
    • https://static.usrfiles.com/ugd/2c8d66_8a7daa5796ae46d687f1b298db398a57.pdf
    • https://static.usrfiles.com/ugd/e8506d_f460a18d2fdb473cb5d134da754b45e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc49fc282ce94bc688b41131689e017e.pdf
    • https://cdn.shopify.com/s/files/1/0434/2772/5474/files/essential_german_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0431/9418/7933/files/teori_utilitarianisme_jeremy_bentham.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9607/files/investment_banking_syllabus.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_off0000a23e.bin
f72f11f88a702053d15c07ddc53ae5b8da827bb3c40e44bd285873f9a5994501
pdf-font-stream PDF embedded font (sfnt) at offset 0xA23E 5220 bytes
font_01_sfnt_off0000b3e6.bin
caf9ff9705f6b2a671110f724efe2a5993c74067696df130342cbcf777ef45db
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3E6 10240 bytes