Malicious PDF — malware analysis report

Static analysis result for SHA-256 c508d62b962abb73…

MALICIOUS

PDF

59.6 KB Created: 2020-07-29 17:54:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5255c0f1a1b2d5d6ee449a4c7c9c32a4 SHA-1: 30126e2ae1d999b5032f252e249cf3787f2c7b65 SHA-256: c508d62b962abb73ca74db9327668417e8365a8fe2cddf73d10e671c37697626
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical finding of a link to known malicious redirector infrastructure at 'ttraff.cc'. The document body, though truncated and obfuscated, suggests a lure related to 'form c registration' and includes urgency language. The presence of numerous PDF links hosted on Shopify, combined with the malicious redirector, indicates a likely phishing or scam campaign designed to lead users to 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/pify?keyword=form+c+registration+pdf
    • http://files.braveministry.com/uploads/1/3/1/6/131636819/a23b47c.pdf
    • http://files.ohioruralwater.org/uploads/1/3/1/4/131453861/jusupobek-bitikawufedo-vagivewak-zusebalutoliri.pdf
    • http://files.steppingstonetuition.com/uploads/1/3/1/6/131606901/lamijakotuzuzof.pdf
    • http://files.perfectstrangersdeeppurpletribute.com/uploads/1/3/2/7/132740805/2063294.pdf
    • http://files.restauranthibiscus.com/uploads/1/3/0/7/130776841/5106130.pdf
    • http://files.steppingstonetuition.com/uploads/1/3/1/6/13
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdf
    • https://cdn.shopify.com/s/files/1/0432/9780/0350/files/nupuwebinupegifekapadako.pdf
    • https://cdn.shopify.com/s/files/1/0433/4436/3678/files/48891837694.pdf
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/fufaronimosowuzus.pdf
    • https://cdn.shopify.com/s/files/1/0433/3387/7914/files/74565043394.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/53120699407.pdf
    • https://cdn.shopify.com/s/files/1/0433/6487/6453/files/gevemubej.pdf
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/nidowufe.pdf
    • https://cdn.shopify.com/s/files/1/0434/2769/2695/files/dimomimososelarokekuxil.pdf
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/kazenogujixazikiseg.pdf
    • https://cdn.shopify.com/s/files/1/0436/9956/8795/files/kebekinuzijepekatiwive.pdf
    • https://cdn.shopify.com/s/files/1/0436/6319/6310/files/65253842861.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_off0000ada8.bin
95aaa09640de48458076e71af8abc2015f4238574707725f8c2933acc279ea22
pdf-font-stream PDF embedded font (sfnt) at offset 0xADA8 5184 bytes
font_01_sfnt_off0000bf30.bin
5c9bd04f39b6d80044f32ec3b70cc1a6e3ca0da000eab9dd7a36d3641af48abb
pdf-font-stream PDF embedded font (sfnt) at offset 0xBF30 10032 bytes