Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fb9c7f13e131473…

MALICIOUS

PDF

44.6 KB Created: 2020-08-08 16:04:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9badffeb5cce69778302fdf29dde827c SHA-1: 0cca54f695847ade8bb2cca816bac164ca920c43 SHA-256: 2fb9c7f13e13147382bdb85d5078b4270820274c0c277e0bc16245345c7780e2
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=all+company+logos+with+names+pdf'. Another heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of a 'download button' lure further supports the malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

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/pify?keyword=all+company+logos+with+names+pdf
    • http://files.rileystevens.org/uploads/1/3/1/6/131637695/mogilevel.pdf
    • http://files.masonridgebrittanys.com/uploads/1/3/1/3/131398010/gijapuro-ziwabuxinifaxij-sureg-zetazutovo.pdf
    • http://mojapim.getstitchedsewingstudio.com/uploads/1/3/2/8/132815028/kesubaxux-nonebajot-melowilulozote.pdf
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/55494271566.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0118/files/xasimigutipakivekune.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/xibebadopume.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/before_i_fall_lauren_oliver_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0434/5508/6742/files/catalogo_redutor_cestari.pdf
    • https://cdn.shopify.com/s/files/1/0434/5295/6838/files/65444246603.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/vijegonavofugapizav.pdf
    • https://cdn.shopify.com/s/files/1/0438/5102/2501/files/character_of_a_leader.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/construction_company_profile_dubai.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/1484823142.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6119/files/93797525593.pdf
    • https://cdn.shopify.com/s/files/1/0434/5095/7991/files/zebebubotefokinubakututu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/nogub.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_off00006edc.bin
99f1db416e7a1a1c0a160d5dd094ce179221b93db6e01a0c162a1864b456556e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDC 5656 bytes
font_01_sfnt_off0000821a.bin
a61d4a1ce318ca4f3420cd62109e5e8b3c503512369370ee929010e014de0715
pdf-font-stream PDF embedded font (sfnt) at offset 0x821A 10512 bytes