MALICIOUS — romuriserupaw.pdf
MALICIOUS — romuriserupaw.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (82/100). 3 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
a6dd0c4abbef7dbedbdd78917a1b3cf55f4bfe22e5ad358e4f08f821967fc377 - SHA-1:
b1e51a11a8600b55d19d1a0a0f4557a356196f1c - MD5:
17595fe2728b532db105f93f02654c2f - ssdeep:
768:JngGzpDQFZGqqIGNUcPTdthaJ3vp/9kPbYqB2vAUQFmZeLXqMC:+GFkslaJ3vZ9kPrB2IZ4ZeLXqMC - TLSH:
T158308DF35197EE8C69CBAF436DAA1069204AC7487133A7A405D93B6CE4BC1BC7F40960 - Submitted as: romuriserupaw.pdf
- File type: pdf · Size: 38829 bytes
- Verdict: malicious (82/100)
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 82/100 is the fusion of 6 weighted signals:
- Memory forensics: 4 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 8132) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 21 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=affirmez+et+vous+obtiendrez+pdf, https://site-1036995.mozfiles.com/files/1036995/4640920062.pdf, https://site-1037884.mozfiles.com/files/1037884/lakiwaxijigupexunup.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 (7 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9720 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
- 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
- desktop-hsgcbep
- 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
- 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
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
- 255.255.254.169.in-addr.arpa
- 79.243.254.169.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
df9e6ba1b3a3258a012bf0ec562b16976f94ca6273d23ccf4edd826280b48640 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\c033b1925bc2627903a5be6323e558b5.png -
92d941cd2a17a1a608a576f54b4a62c085851b59d74f3e3ebcd8ef2c4fcb2cd0 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=affirmez+et+vous+obtiendrez+pdf
- https://site-1036995.mozfiles.com/files/1036995/4640920062.pdf
- https://site-1037884.mozfiles.com/files/1037884/lakiwaxijigupexunup.pdf
- https://site-1037240.mozfiles.com/files/1037240/nelejuxodibinad.pdf
- https://cdn.shopify.com/s/files/1/0484/8192/7318/files/zalifupirezi.pdf
- https://cdn.shopify.com/s/files/1/0478/6978/8326/files/57653896109.pdf
- https://cdn.shopify.com/s/files/1/0435/7079/0558/files/91837069466.pdf
- https://cdn.shopify.com/s/files/1/0428/2171/4079/files/8656797033.pdf
- https://cdn.shopify.com/s/files/1/0429/8909/3018/files/selomikaguv.pdf
- https://cdn.shopify.com/s/files/1/0431/7554/2950/files/62151964994.pdf
- https://cdn.shopify.com/s/files/1/0434/6046/0706/files/39196013077.pdf
- http://files.artistryinmotiondance.net/uploads/1/3/1/3/131398231/3346563.pdf
- http://files.appassionare.com/uploads/1/3/0/8/130814397/81c5c0b54df.pdf
- http://files.lotusandbee.com/uploads/1/3/1/1/131164090/koxosexepikigi-senun-dawaninujigipow-fanezegugexejog.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
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787754323&P2=404&P3=2&P4=keh4MpASk%2b5RwFmcsEswnA0eOljTpP3kc4f4mQYSurJtycOeAc2hHBqLoM1QwY2BH%2beyff9A4vXWPsG34GqmEA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- cctraff.ru
- site-1036995.mozfiles.com
- site-1037884.mozfiles.com
- site-1037240.mozfiles.com
- cdn.shopify.com
- files.artistryinmotiondance.net
- files.appassionare.com
- files.lotusandbee.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 135.233.95.144
- 172.172.255.217
- 52.123.252.204
- 20.184.175.15
- 172.66.2.5
- 52.110.12.3
- 172.215.188.225
- 4.230.171.124
- 74.178.240.61
- 4.150.223.100
- 20.236.44.162
- 52.123.129.14
- 52.123.128.14
- 20.184.175.10
- 74.179.71.159
- 72.145.35.105
- 203.26.79.13
- 20.42.72.131
- 48.200.63.27
- 20.50.201.205
- 142.250.183.35
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report