Malicious PDF — malware analysis report

Static analysis result for SHA-256 d888dd08ae779750…

MALICIOUS

PDF

52.6 KB Created: 2020-08-07 13:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 496f87db76fbe1652c02e27d44e2927f SHA-1: ab73f88367b1bc74dbcb18220c28401a45597779 SHA-256: d888dd08ae779750a00a18f68a8c4ea2316ae4ee6736703f890b53240de7be90
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text and URLs that suggest a lure related to 'architectural photography composition pdf'. The primary malicious URL identified is ttraff.ru, which is likely used to redirect users to further malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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.ru/pify?keyword=architectural+photography+composition+pdf
    • http://vumovijir.bernardcassiere.fi/uploads/1/3/1/3/131383284/b541ca.pdf
    • http://files.mvestatehomes.com/uploads/1/3/1/4/131437079/dakurufobalika.pdf
    • http://files.imaginesullivant.org/uploads/1/3/1/4/131437685/buzivaxaj_gaxajidijoluji.pdf
    • http://files.academyforsales.co.uk/uploads/1/3/0/7/130775537/479777c82b5c.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/89566458207.pdf
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/kuvakoji.pdf
    • https://cdn.shopify.com/s/files/1/0428/2944/7335/files/66656275124.pdf
    • https://cdn.shopify.com/s/files/1/0434/5816/6941/files/chicken_soup_for_the_soul.pdf
    • https://cdn.shopify.com/s/files/1/0428/3147/8950/files/fasejim.pdf
    • https://cdn.shopify.com/s/files/1/0439/6302/3518/files/41117452342.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/kusazipenidagomobifuji.pdf
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/45911348602.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/gavolunejopefotanove.pdf
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/72020774356.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/55077934305.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45292738862.pdf
    • https://cdn.shopify.com/s/files/1/0434/7684/4694/files/31518587948.pdf
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/79217977109.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/unearthed_arcana_sorcerer.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d4b.bin
b0b2cc2ebf0169a8a79313282ea5d7768fac932f504e0ae8f289eddc8d37a04b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4B 5540 bytes
font_01_sfnt_off00008fff.bin
04737b0ef68ba6b11567fb4396c87b7b93ade58b52a55e45a18db1c01114e968
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFF 11824 bytes
font_02_sfnt_off0000b6a9.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xB6A9 4324 bytes