Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2dfb7ec83805ab7…

MALICIOUS

PDF

41.2 KB Created: 2020-08-06 17:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58667d5d29ea2c3a8bf482b6b7f5f309 SHA-1: 3d0f96d826f8efbe345bc62621ddaa8c6b895569 SHA-256: e2dfb7ec83805ab7c748a89b7d695657e0b8848746386192b7b030963ac3e738
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.003 Windows Command Shell T1204.002 Malicious Link

The PDF contains a lure to execute commands, as indicated by the 'SE_CLIPBOARD_COMMAND_LURE' and 'SE_LOLBIN_RUN_COMMAND' heuristics. It also links to a known malicious redirector, 'https://ttraff.com/wb?keyword=cmd%20hack%20wifi%20password%20pdf', which is likely used to download a secondary payload. The document body, though heavily obfuscated, contains this URL and references to command execution.

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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/wb?keyword=cmd%20hack%20wifi%20password%20pdf
    • http://files.depotruth.ca/uploads/1/3/0/8/130814390/tuzukaguwofi.pdf
    • http://files.williamsportmdcommunityband.org/uploads/1/3/1/4/131452838/nidug_kasibaxisemetum.pdf
    • http://files.walkinginthewordministries.net/uploads/1/3/2/3/132303189/e90b0.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/86613870257.pdf
    • https://cdn.shopify.com/s/files/1/0432/8544/6822/files/wesowupusagasir.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/zufogutizujuniku.pdf
    • https://cdn.shopify.com/s/files/1/0434/1583/0695/files/pegibixalegavowomatewoleg.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/xabozesiwixumolupiwusi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0883/5234/files/walil.pdf
    • https://cdn.shopify.com/s/files/1/0431/4716/5850/files/fuxusabuvokupemoro.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/modaporubewibodoxura.pdf
    • https://cdn.shopify.com/s/files/1/0430/1648/7065/files/xagigigibinatetel.pdf
    • https://cdn.shopify.com/s/files/1/0433/2011/5358/files/2792117579.pdf
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/iguana_tinker_tweaks_config.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/31610340725.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/70908640117.pdf
    • https://cdn.shopify.com/s/files/1/0440/7748/2136/files/texas_durable_power_of_attorney.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_off000062b4.bin
ced682030fff03f9bd2345ced251141b187fbedeca2bbcaf10b068be481646c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 5424 bytes
font_01_sfnt_off00007510.bin
78a28d61ff8f78a1646d20b0dfd97d06d060e9be29e17745a5aa197da51b6025
pdf-font-stream PDF embedded font (sfnt) at offset 0x7510 10240 bytes