Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a5d538db5887c0f…

MALICIOUS

PDF

40.2 KB Created: 2020-04-27 03:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5a6943ca866b5bce04f69c63623e4408 SHA-1: fccd85333f4a0ef6c4a3814d7557b69aad59ab77 SHA-256: 8a5d538db5887c0fd6a3d5efd257c941d54e40c2229d53551f073cad750441e6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains a large number of external links, indicating a link farm or SEO manipulation tactic. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may contain instructions for executing commands using Windows scripting tools. The presence of numerous unknown URLs points to a broad distribution effort. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

Heuristics 4

  • 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://flytouchphotography.com/uploads/1/3/0/7/130739674/130739674.html#azure+cli+commands+pdf
    • http://kangarooislandshortstayz.com/uploads/1/3/0/4/130436007/sinapowajuf_napusenevapamar_tutetizoluveja_bivegumilo.pdf
    • http://austinpetmonth.com/uploads/1/3/0/8/130874316/626006.pdf
    • http://bradford-productions.com/uploads/1/3/0/2/130274088/nuzanunelog-sovib-taruwarevev-godibe.pdf
    • http://youngsforgbcs.com/uploads/1/3/1/6/131606124/zoreseduw-pedadejed-zonumepulut.pdf
    • http://egisc.com/uploads/1/3/1/0/131070518/favomid.pdf
    • http://ndrealtyllc.net/uploads/1/3/0/7/130775260/15ed1e5a3fc.pdf
    • http://sarlaventures.com/uploads/1/3/0/6/130620565/2260517.pdf
    • http://solvitechltd.com/uploads/1/3/0/6/130603982/2118256.pdf
    • http://hsexquisitecloset.com/uploads/1/3/0/2/130270798/jajowezodolinu.pdf
    • http://roboticsforalleducation.com/uploads/1/3/0/5/130590521/f685e.pdf
    • http://cwalker5.net/uploads/1/3/0/4/130488345/2ba802.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006faf.bin
434555d1e2d4260435f39e8adedf585c6a03dfdfc254cff4c4c2f29f7fe0978f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAF 9424 bytes

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