Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ee7b859e10b4bf…

MALICIOUS

PDF

51.4 KB Created: 2020-08-22 17:53:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8eb0edfc628199ec5d49af41e68c5024 SHA-1: e54282ed9bdbee2b80ef775ddc630c8f100597be SHA-256: 58ee7b859e10b4bf8634aa9f63274dcb1d9366e1c9e98e79f8f3ca081cc59a92
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm and another flagging a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=question+answer+of+ch+indigo', which is flagged as malicious. The primary intent appears to be SEO manipulation or redirection to malicious content, rather than direct user interaction with the document's text.

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.com/pify?keyword=question+answer+of+ch+indigo
    • http://lorej.nicolemartinetti.com/uploads/1/3/1/4/131409090/wofadakopu.pdf
    • http://sikavutew.glowfishstudios.com/uploads/1/3/0/7/130775413/207835.pdf
    • http://files.royalglossbrat.com/uploads/1/3/1/4/131437044/maviw.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/xifekorizew.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0576/files/add_modifiers_tinkers.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/katodijedef.pdf
    • https://cdn.shopify.com/s/files/1/0430/5820/0725/files/26407640.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/adobe_scan_apk_cracked.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/toduwodokudunipokoben.pdf
    • https://cdn.shopify.com/s/files/1/0433/4764/0469/files/incident_report_form_template_australia.pdf
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/gadewinozugofu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/flutter_splash_screen_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/bojogewelolaw.pdf
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/52962452110.pdf
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/mufepixufufulaxa.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_off000077eb.bin
4063e988c29994fb47dd3353e98c6ed628e34e1f40268daf25562f3e6495fdf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x77EB 5288 bytes
font_01_sfnt_off000089ed.bin
2bb18a6b14e1e5c88a7a596f3545b0bbac95b359aa15368dcbc8786079a28584
pdf-font-stream PDF embedded font (sfnt) at offset 0x89ED 12996 bytes
font_02_sfnt_off0000b2f2.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2F2 4324 bytes