MALICIOUS — fefikumas.pdf
MALICIOUS — fefikumas.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
d8112b53a34a7f166e80d88bf620e21419944c02da0c60b7191dd3d050e51b68 - SHA-1:
24486243d17cdd4bc6bc870b4f83a4949540d9d4 - MD5:
86d11486459097e907d8375c25bb859d - ssdeep:
768:9gGzpDmONE4DuqhCr2CY3p9QtsliB2hTqEa6J2u/fDI:+GFKUpEtsliB24U2u/7I - TLSH:
T1D5309FF350A7ED8C7A8B6B076DAB1159618AD68C203392A058D8773CC4BC6FD7E50931 - Submitted as: fefikumas.pdf
- File type: pdf · Size: 38151 bytes
- Verdict: malicious (72/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 14 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/dad3ee25-9e21-4e64-8a54-668602193797/62282807655.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=cabriolet+bold+font+free, https://cdn.shopify.com/s/files/1/0430/6393/5129/files/69427584765.pdf, https://cdn.shopify.com/s/files/1/0432/5467/7662/files/chi_square_test_spss_non_parametric.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (11 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9767 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- desktop-hsgcbep
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 250.255.255.239.in-addr.arpa
- ntp.ubuntu.com
- 79.243.254.169.in-addr.arpa
- 255.255.254.169.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
b2d5e9e082d029840a51846233f8a7e309375a9741a6ca52211edc028c2df80c - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\6dddd5031b296b3821ddef55afcf0ad7.png -
1a274912b5e55c20914853db6320d6f29d413b7696fc958d38f162c8011c8a00 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=cabriolet+bold+font+free
- https://cdn.shopify.com/s/files/1/0430/6393/5129/files/69427584765.pdf
- https://cdn.shopify.com/s/files/1/0432/5467/7662/files/chi_square_test_spss_non_parametric.pdf
- https://cdn.shopify.com/s/files/1/0432/7813/9556/files/rebezu.pdf
- https://cdn.shopify.com/s/files/1/0437/7578/7157/files/26175838393.pdf
- https://uploads.strikinglycdn.com/files/dad3ee25-9e21-4e64-8a54-668602193797/62282807655.pdf
- https://site-1037227.mozfiles.com/files/1037227/13656697631.pdf
- https://site-1043456.mozfiles.com/files/1043456/mataniruliw.pdf
- https://site-1036900.mozfiles.com/files/1036900/losijo.pdf
- https://site-1036679.mozfiles.com/files/1036679/bogolatujekesimusoborata.pdf
- http://povazul.ggsdesigns.net/uploads/1/3/1/0/131070197/464d6b545b02a1b.pdf
- http://files.littledenblog.com/uploads/1/3/0/7/130738825/a299d95.pdf
- http://jesuzisuz.devizesfinekitchenswiltshire.co.uk/uploads/1/3/2/8/132814977/xonoreletef-fafevomotiwijel-wekazebofosevi.pdf
- http://bavasu.totsandco.org/uploads/1/3/0/7/130776089/zuwir-gilatewil-sisas-fajid.pdf
- http://files.nphsjrwolfpack.com/uploads/1/3/1/4/131483253/pageponiputi_gosalobire_vopepas_fatibo.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/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- cctraff.ru
- cdn.shopify.com
- uploads.strikinglycdn.com
- site-1037227.mozfiles.com
- site-1043456.mozfiles.com
- site-1036900.mozfiles.com
- site-1036679.mozfiles.com
- povazul.ggsdesigns.net
- files.littledenblog.com
- jesuzisuz.devizesfinekitchenswiltshire.co.uk
- bavasu.totsandco.org
- files.nphsjrwolfpack.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 74.179.71.159
- 20.184.175.2
- 4.149.227.78
- 52.110.12.37
- 4.230.171.124
- 20.165.94.54
- 52.123.128.14
- 40.99.134.18
- 74.178.240.61
- 135.233.95.80
- 203.26.79.13
- 92.223.78.30
- 135.232.92.34
- 172.178.240.163
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report