MALICIOUS — rofuxawem.pdf
MALICIOUS — rofuxawem.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (92/100). 2 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
abb3a915cd05e2906de72d4e7e06a97207428131551cc1c6f924b5680569d1e2 - SHA-1:
62e1b282ed26d8b7b1c134c950b97765c896abf8 - MD5:
273761ff621f00488062c7c00cc45398 - ssdeep:
768:1gGzpDKh253Ic6N2BvXGf7qLD2OUr2CXT8Ke:mGFG0D6NuO7qrUr2CXT8Ke - TLSH:
T181318DF35067DE8C7B87BF07A9E61444A085C749A137E7A04488376DC4BC6BD7E50461 - Submitted as: rofuxawem.pdf
- File type: pdf · Size: 40585 bytes
- Verdict: malicious (92/100)
Detections (2 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 92/100 is the fusion of 7 weighted signals:
- Embedded link rated malicious by URL analysis: https://uploads.strikinglycdn.com/files/5e8f3e32-cb37-4b4f-98cb-bacd4286f82a/pubudozufezobofad.pdf - network signal, weight 0.70, confidence 0.80
- Memory forensics: 5 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 7488) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 18 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://gettraff.ru/strik?keyword=writing+a+friendly+letter+template+p, https://site-1040299.mozfiles.com/files/1040299/46426918898.pdf, https://site-1036973.mozfiles.com/files/1036973/82291506500.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 (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9713 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
- 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
- 250.255.255.239.in-addr.arpa
- desktop-hsgcbep
- 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
- 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
- 252.0.0.224.in-addr.arpa
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
8051e6773d239fc1ca01cb25a62ba642b5fb9bb2d46bdedf86f7ccf0cfdcbcfe - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\f2dd89075b59b1912f8b001d18bd9e1e.png -
9577a2718106d91a257dd0205c7d5b8ec3b19c3b8f99bc3926dc388969195cc1 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://gettraff.ru/strik?keyword=writing+a+friendly+letter+template+p
- https://site-1040299.mozfiles.com/files/1040299/46426918898.pdf
- https://site-1036973.mozfiles.com/files/1036973/82291506500.pdf
- https://site-1037882.mozfiles.com/files/1037882/ziwanimusinuvetowilibin.pdf
- https://site-1038614.mozfiles.com/files/1038614/kesubobagigibomagimajaj.pdf
- https://site-1036874.mozfiles.com/files/1036874/11406565031.pdf
- https://uploads.strikinglycdn.com/files/a2731a64-9d64-48ec-bf2f-1115babe4a0e/87116024179.pdf
- https://uploads.strikinglycdn.com/files/68f6be0a-353b-4de0-a9c2-ff029b08fab8/75483675622.pdf
- https://uploads.strikinglycdn.com/files/5e8f3e32-cb37-4b4f-98cb-bacd4286f82a/pubudozufezobofad.pdf
- https://uploads.strikinglycdn.com/files/a4f3cbca-e971-4659-ba86-83e00f03d635/fizap.pdf
- https://uploads.strikinglycdn.com/files/2cb0ed6b-11b7-4cbe-a73e-c389a0c5330e/zozijigogefimuge.pdf
- https://uploads.strikinglycdn.com/files/019684d9-d3c1-4470-bbb8-db4dd807725b/49422238313.pdf
- https://uploads.strikinglycdn.com/files/f0005be7-b432-4ed1-8880-96ba84c8be08/41196816679.pdf
- https://uploads.strikinglycdn.com/files/f152707e-7089-47df-9757-98c8bf0efa7d/sadadasodaduvul.pdf
- https://uploads.strikinglycdn.com/files/98a65560-e35e-418d-9910-3c29fad0bc79/foratu.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
- gettraff.ru
- site-1040299.mozfiles.com
- site-1036973.mozfiles.com
- site-1037882.mozfiles.com
- site-1038614.mozfiles.com
- site-1036874.mozfiles.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 162.159.142.9
- 85.210.196.11
- 135.232.92.137
- 52.168.117.171
- 4.150.223.98
- 172.172.255.218
- 52.230.60.54
- 52.110.12.20
- 4.230.171.124
- 57.155.101.212
- 52.182.141.63
- 74.178.232.29
- 135.233.95.144
- 72.154.7.16
- 203.26.79.13
- 52.168.117.175
- 52.123.128.14
- 52.123.252.230
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report