Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0682516b44b34f0…

MALICIOUS

PDF

38.4 KB Created: 2020-08-01 09:30:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 018e35051a1a4c2470355edbbb323584 SHA-1: b40dfe785ab29e2fa5865089ec7ba336a9dc43a7 SHA-256: e0682516b44b34f009967e479a1d4c73f0999e3489a7f844aa0fca446791fedc
150 Risk Score

Malware Insights

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

This PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=bf4+pc+player+count'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=bf4+pc+player+count
    • http://files.lllportercounty.com/uploads/1/3/2/6/132695832/9f18c6a06542ef.pdf
    • http://files.peachyboho.com/uploads/1/3/0/9/130969277/kokotapudiguv_rakajegokeruf_kijisokorob.pdf
    • http://files.scfoodaccess.com/uploads/1/3/0/7/130740165/957c3b8d85.pdf
    • http://files.malianmanuscriptfoundation.org/uploads/1/3/0/9/130969097/luvewus.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/63937207365.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15900382268.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65028435792.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zofes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/34800284661.pdf
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/46022416019.pdf
    • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/the_walking_dead_season_2_episode_8.pdf
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/55211745034.pdf
    • https://cdn.shopify.com/s/files/1/0433/4157/8399/files/clicker_heroes_coin_hack.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niborenegukudokeregus.pdf
    • https://cdn.shopify.com/s/files/1/0431/5702/9018/files/27638585733.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_off000049f8.bin
137a0fc0bbeb2e1c7d95259d0f4f55978b1979af56983a1fdeb2e5a923bae925
pdf-font-stream PDF embedded font (sfnt) at offset 0x49F8 4904 bytes
font_01_sfnt_off00005ac2.bin
39070c8459857531eb88f05600ce84f967c2a6d627a6c4bdbf211054401760a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC2 10568 bytes
font_02_sfnt_off00007ec8.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 4324 bytes