Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa0085ae7f7259f…

MALICIOUS

PDF

62.5 KB Created: 2020-04-13 06:45:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 494b6d9ca0fa1e1c1a634c625d9c0620 SHA-1: ebe02ab41e24b0303b97026006521a11a7151342 SHA-256: daa0085ae7f7259f285db7ed15ddaec5328b3434c43eb1d718771f3b73d0c3c1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. This suggests a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm. The primary intent seems to be directing users to a network of external sites, potentially for malicious redirection or content delivery.

Heuristics 3

  • 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.
  • 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://yarrarangeslowline.com/uploads/1/3/0/6/130639745/130639745.html#norma+oficial+mexicana+de+hipertension+arterial+en+el+embarazo
    • http://rzrestorations.com.au/uploads/1/3/1/4/131482886/126097.pdf
    • http://beitstaffing.com/uploads/1/3/0/9/130969456/wanagelezo.pdf
    • http://cleantoonet.be/uploads/1/3/0/7/130775627/gilovad-samorumafuwun-lalexuzitogo-nukun.pdf
    • http://metafirechem.com/uploads/1/3/0/8/130813762/7858428.pdf
    • http://stanharrisconstruction.com/uploads/1/3/1/3/131383228/0f856c319a.pdf
    • http://moversdaytonabeach.com/uploads/1/3/0/5/130588687/4112704.pdf
    • http://instantcelebritymaker.com/uploads/1/3/1/4/131482919/b1898.pdf
    • http://hmscougarbots.org/uploads/1/3/0/4/130483990/porefabiniwa.pdf
    • http://gameaddictionhelp.com/uploads/1/3/0/7/130776502/6270966.pdf
    • http://eacy.com/uploads/1/3/0/4/130490019/vasigutefekanes_wedifegexuda_tunig_fufukujaluxo.pdf
    • http://jungermanfoundation.org/uploads/1/3/0/5/130588735/9972562.pdf
    • http://wakohsiyolifewellness.net/uploads/1/3/1/4/131408798/fcbe326ee.pdf
    • http://metafirec
    • 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_off0000b682.bin
db2328978986a538f04809cd7bcc56e99c570c6377bcae87c00a89e7374861ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB682 8752 bytes
font_01_sfnt_off0000d66f.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD66F 16036 bytes

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