Malicious PDF — malware analysis report

Static analysis result for SHA-256 e250ad9fd7be1a16…

MALICIOUS

PDF

53.4 KB Created: 2020-04-04 14:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dbf98866e4e1f90827d97ff495f8eea1 SHA-1: c867e6519a4731af6386f1461a50f9ca419a638f SHA-256: e250ad9fd7be1a165f85f007da82e60a25390de4a0a6a023de67014d1f6c93a7
82 Risk Score

Malware Insights

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

The PDF file contains a lure related to game cheats, but its primary malicious function appears to be a link farm. It embeds a large number of external links, many pointing to other PDF files, suggesting an attempt at SEO manipulation or distributing further malicious content. The presence of a callback phishing lure also indicates a potential for social engineering.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://nursingarmpillow.com/uploads/1/3/1/4/131438563/131438563.html#cheats+for+grand+theft+auto+iv+xbox+360+money
    • http://quadsnmoto.com/uploads/1/3/0/9/130968943/mikipipesife_gojul.pdf
    • http://fifthcolvmnracing.com/uploads/1/3/0/5/130588427/293e09eaa.pdf
    • http://northernvalleysportinggoods.com/uploads/1/3/0/9/130968968/6595798.pdf
    • http://pixieinkdesign.com/uploads/1/3/0/4/130478347/2a12bdaade3343e.pdf
    • http://fm-produktiv.de/uploads/1/3/0/4/130476447/nitukoliporutoxorew.pdf
    • http://theolivescript.com/uploads/1/3/1/4/131438747/8679145.pdf
    • http://eliteinsuranceprovider.com/uploads/1/3/1/3/131398574/kawivobuz_dapapoji_koweduxejuda_ledoruv.pdf
    • http://gondasafetysolutions.com/uploads/1/3/0/9/130969681/938764.pdf
    • http://onthemarkmobilenotary.com/uploads/1/3/1/4/131437679/5581677.pdf
    • http://daygameinthebronx.com/uploads/1/3/0/5/130539218/9bd2bf7a7cf8059.pdf
    • http://revsurfco.com/uploads/1/3/0/4/130489265/xigojofowezufow.pdf
    • http://eco-plantravellight.net/uploads/1/3/0/5/130589219/8609359.pdf
    • http://aimeekena.com/uploads/1/3/1/4/131452903/pimibulimutonujop.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_off0000a6fc.bin
939d6d6a025af287e3bd5e8ffe2a7619c37eb06114623820c38153dee2a29555		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6FC 8820 bytes

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