Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d9f6179c9c05be8…

MALICIOUS

PDF

55.1 KB Created: 2020-08-25 21:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d73b72ce22280e19d49d5a8d5f25e75 SHA-1: 0d8a8050ed34b1f83018f754ca74049fbd0a2a31 SHA-256: 8d9f6179c9c05be8753f7408ad9402cb3b537ba84fa8738e71cb2c866ec509eb
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=gloomhaven+mind+thief+strategy'. The document body, though heavily obfuscated, contains text related to 'Gloomhaven mind thief strategy', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains, likely to obscure the malicious redirector.

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.cc/pify?keyword=gloomhaven+mind+thief+strategy
    • http://files.aquadogsports.com/uploads/1/3/1/4/131453127/degufog.pdf
    • http://files.calvarychapelwesttexas.com/uploads/1/3/2/8/132814930/wevotif_sajezofuturafep_laruze.pdf
    • http://files.bethany-music-ministry.com/uploads/1/3/1/0/131070678/4427470.pdf
    • http://files.landseastudios.com/uploads/1/3/0/7/130738919/rowelijukuj_veworarejug_papuwa_dikeminu.pdf
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/16718000601.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/xulemudegusoxeli.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/tenofukabatemekovowerut.pdf
    • https://cdn.shopify.com/s/files/1/0462/1588/9050/files/anthony_robbins_unlimited_power_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/2083/7287/files/aflatoxin_in_groundnut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0360/0283/files/fatenaxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/88105008340.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/56074395265.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/demo_warlock_dps_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/6303/3507/files/85623420391.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_off00008d36.bin
588260418c677ac9ea76dce32da809431bcf8d7b9439e42a5bf0eb9a9050c035		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D36 5300 bytes
font_01_sfnt_off00009f21.bin
801bb31ed591b48dc6134bb2c9832cc3467b9000e37d148dd5f082dacecb4eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F21 10044 bytes
font_02_sfnt_off0000c17a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC17A 4324 bytes

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