Malicious PDF — malware analysis report

Static analysis result for SHA-256 481e054e27289a63…

MALICIOUS

PDF

44.0 KB Created: 2020-08-03 08:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cb65b8f270087feedf80030f79f4d37 SHA-1: 6c424333bc52abc87d84c001405aa7d39f1ba20a SHA-256: 481e054e27289a63bf0a089ceebdab1b106a5aab2b01225eb6b2e4f157a9e0c3
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a redirector known to host malicious content. The document body and embedded links suggest a lure for software cracking, which is a common social engineering tactic. The primary malicious IOC is the redirector URL, which likely leads to a further stage of the attack.

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=how+to+crack+software
    • http://files.dtraveladvisors.com/uploads/1/3/2/7/132741375/vuzumeroz-madaxovag-nakeku-xonulogibibo.pdf
    • http://files.marybethrobbins.space/uploads/1/3/1/4/131437889/renodoni_wugibuxisuron_gugakuroruduli_nopakuwab.pdf
    • http://files.carolalbertmusic.com/uploads/1/3/1/4/131454420/5359906.pdf
    • http://files.grammalink.org/uploads/1/3/1/6/131606923/vimedetidij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9216/5279/files/fiberojuzijagitomakuw.pdf
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/60527817319.pdf
    • https://cdn.shopify.com/s/files/1/0432/5045/0600/files/farujevide.pdf
    • http://files.pec.us.com/uploads/1/3/2/6/132695200/b2d3910b8430.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/fuguzem.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/78519897031.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/borikufilefono.pdf
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/39857084429.pdf
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/44825643362.pdf
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/62715049808.pdf
    • https://cdn.shopify.com/s/files/1/0436/0290/3202/files/38331503687.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/tugewutewewutizok.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_off000061f7.bin
f714b42135e82af096df5c6b12f317ba128d7860c08798c39dd9c63b97af9ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 4592 bytes
font_01_sfnt_off000071a9.bin
7038443c72fd0b93d44d918def4f8443488d817d4799363ac4350839ab26ea63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71A9 10320 bytes
font_02_sfnt_off000094ef.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94EF 4324 bytes

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