Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceed739cb4a0c03c…

MALICIOUS

PDF

45.6 KB Created: 2020-08-12 13:01:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71cecf2019fa29f843c88a7e992ffe11 SHA-1: b11a93927d72370f8071f54be93ba1ef75651137 SHA-256: ceed739cb4a0c03c3c0837f083faa0000c0a59bf6edca3686aec18570877eeb7
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which are part of a link farm designed to appear as legitimate PDF downloads. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/wb?keyword=agriculture%20and%20poverty%20reduction%20pdf'. This suggests the document's primary purpose is to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

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/wb?keyword=agriculture%20and%20poverty%20reduction%20pdf
    • http://pobiv.copperfieldfarmfl.com/uploads/1/3/1/3/131383708/8565719.pdf
    • http://files.nancypenchev.com/uploads/1/3/0/7/130738921/4395609.pdf
    • http://files.helenmccreery.com/uploads/1/3/1/1/131163959/fapevatejik_viwowazekuze_fimase_wunapalov.pdf
    • https://cdn.shopify.com/s/files/1/0439/1357/6603/files/7414509020.pdf
    • https://cdn.shopify.com/s/files/1/0432/2400/6820/files/27538947727.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.pdf
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/45155334844.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6353/files/cat_5e_wiring_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/8th_grade_algebra_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/tijosesovuridizej.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/midiwonanefe.pdf
    • https://cdn.shopify.com/s/files/1/0433/4672/2969/files/cover_letter_template_for_job_application.pdf
    • https://cdn.shopify.com/s/files/1/0428/6762/2055/files/domixoredasatefupoz.pdf
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/divosade.pdf
    • https://cdn.shopify.com/s/files/1/0433/3866/2053/files/gemebanalozuwo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8078/files/kepogo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3602/4737/files/hp_laserjet_p2055dn_manual.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_off00006cd2.bin
c2b42c8ab01d2b619e1823db57070c291cf9eb5485e677137b58123aef841e4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD2 5296 bytes
font_01_sfnt_off00007ef6.bin
fdd765aa064d143a76860952a102a74cf890066ef5ecf9ab8580335e5435c7f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF6 13560 bytes