Malicious PDF — malware analysis report

Static analysis result for SHA-256 e088055e50b557c9…

MALICIOUS

PDF

59.1 KB Created: 2020-08-12 16:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb2421bb1f4eef746768f15075162569 SHA-1: 56cabf9c57bd35d0d0714aa4e6cbe2ecee344aea SHA-256: e088055e50b557c91444ba9f208b10674300afea28ef9668ce2cb79bc186f7c7
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. This URL is embedded within the document body, disguised as a link to a 'Canon eos 750d user manual pdf'. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious IOC is the ttraff.ru redirector, which likely leads to a malicious payload or phishing site.

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.ru/pify?keyword=canon+eos+750d+user+manual+pdf
    • http://files.groundswellballito.com/uploads/1/3/0/9/130969829/nojin_kazero_limarogojona_bosokosidivus.pdf
    • http://files.fabulousstories.com/uploads/1/3/1/8/131872015/ragogogo_vinadamebi_tasezosop_vimewo.pdf
    • http://files.kansascrappieclub.com/uploads/1/3/0/7/130776245/ab7a4a.pdf
    • http://files.backroadcustomcycles.com/uploads/1/3/0/7/130739393/7731915.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/70101255525.pdf
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/19540253151.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/dulasetuwajekaxiladinar.pdf
    • https://cdn.shopify.com/s/files/1/0427/8150/7740/files/zepitugusubigukol.pdf
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/89508429739.pdf
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/guxoradidewejokikame.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/17012051366.pdf
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/broadcasting_media.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4826/files/55882549026.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/84510759255.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/zuvisisosot.pdf
    • https://cdn.shopify.com/s/files/1/0438/2903/5158/files/widows_media_player_skins.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000816c.bin
cb5c8c6405a97e289a1d37fd8f3fa0fb9a9e5cd02c3f475be668e5c7f8c23a8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x816C 3312 bytes
font_01_sfnt_off00008d4d.bin
9c295c7500db7d8b514bd7f84d2256ac04ea2b59777104a1953d9704142496b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4D 5312 bytes
font_02_sfnt_off00009f45.bin
c958b0a3c2aa851dafbb9df831eb2a2abd9a5d335b1628fff90770199ff28e66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F45 16392 bytes
font_03_sfnt_off0000d0c0.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C0 4324 bytes

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