Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fc8e5ffb985aaff…

MALICIOUS

PDF

52.9 KB Created: 2020-08-25 16:14:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 179edb0bf38210d83014a78f76bcb74d SHA-1: 7e08891bb265f6dac84fe659aaaef7fb830e9557 SHA-256: 9fc8e5ffb985aaff9ac90c83ae984c9722e6a82b9286a166b7d5770696568b58
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though partially corrupted, suggests a lure related to a 'client quarterly business review template' and includes urgency language. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further 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.ru/pify?keyword=client+quarterly+business+review+template
    • http://ritugisud.whiteimprints.com/uploads/1/3/1/4/131438572/9071640.pdf
    • http://zodugojef.functionalfitness.ca/uploads/1/3/0/7/130776486/getozuberisegij-zutexejenipov-votufuzizajobug.pdf
    • http://files.rafkasfareet1953-56.com/uploads/1/3/1/0/131069992/lunozuledamudidilowo.pdf
    • http://files.balthazarconjure.com/uploads/1/3/1/8/131858045/ca7f4a8216f.pdf
    • http://files.shaqisoutthere.org/uploads/1/3/2/6/132681992/eadd9bcb8be7cb.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/bamaxudasigemal.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/devotukefapilaxakokalixu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8047/4014/files/10424014457.pdf
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/zomukuvogorixunaxivavofa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/83661228653.pdf
    • https://cdn.shopify.com/s/files/1/0439/3759/5560/files/37411190570.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/21200589044.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/nefilepijijisidofepunefo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/guxibogagazuniretisode.pdf
    • https://cdn.shopify.com/s/files/1/0439/3759/5560/files/core_java_interview_question_answer_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7955/6504/files/hatoful_boyfriend_steam_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/doxoridapid.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/4069980709.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_off00009020.bin
0cfc7bd3aacc701832c5bebb760b0e4e20f9ecc294e922683173c5d323bbdffc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9020 5392 bytes
font_01_sfnt_off0000a271.bin
a71cdf1c000e8b323258f6140bef33120fa34a8013abac89aa8b8a25731f643b
pdf-font-stream PDF embedded font (sfnt) at offset 0xA271 10516 bytes