MALICIOUS — nafanusijuk.pdf
MALICIOUS — nafanusijuk.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:
0d8e2c5176c9b6699e5bba17e570b2973b7d87072b5e3aed69987aa2a030e4fb - SHA-1:
0785b8ce32dc2e86ca9c34db201512348de67707 - MD5:
2e6e3070a5ce1ebaf0f6686a05e6700d - ssdeep:
768:QgGzpDJ0rlJ2+qvZStZjwzkpVh8ip+FOYCCma2E4yORVFOth:9GFVIlo+eTep+FzCLauy6FOth - TLSH:
T1F632ADF350A7EC8C7FD69B47ADA215596589C38CB037933059E9362CD47C6BDAE40820 - Submitted as: nafanusijuk.pdf
- File type: pdf · Size: 43897 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 17 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/1cd726d8-7387-4d79-b9b0-7e7d43d4476f/gawid.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://ggtraff.ru/strik?keyword=pltw+3.2+h+answers, https://uploads.strikinglycdn.com/files/1cd726d8-7387-4d79-b9b0-7e7d43d4476f/gawid.pdf, https://uploads.strikinglycdn.com/files/7a29f1f8-699c-49f9-97df-8476b9dd8fab/91096911932.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)
9728 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
- 252.0.0.224.in-addr.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
- 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
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- 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
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
66fa0db2999033d82f9201c00559865c13efc3e7e5709974d76feacc57d83121 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\0a250d58d1c3904faa10801ab619ac55.png -
9bfee55ee3d0742c72cb3e210b9d864d0ef811d515fd9eb0f6ffd579f65128eb - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://ggtraff.ru/strik?keyword=pltw+3.2+h+answers
- https://uploads.strikinglycdn.com/files/1cd726d8-7387-4d79-b9b0-7e7d43d4476f/gawid.pdf
- https://uploads.strikinglycdn.com/files/7a29f1f8-699c-49f9-97df-8476b9dd8fab/91096911932.pdf
- https://uploads.strikinglycdn.com/files/787cc88d-c62e-446b-938b-f12a5cd1e6a0/25226861891.pdf
- https://uploads.strikinglycdn.com/files/b701a11e-2652-4497-b2d9-ba76dda8a0cd/pejevisojegi.pdf
- https://site-1036962.mozfiles.com/files/1036962/70224305821.pdf
- https://site-1036629.mozfiles.com/files/1036629/gavutobagegijufivogojo.pdf
- http://files.arttecheducation.com/uploads/1/3/1/8/131856072/ef79c3b7213105b.pdf
- http://files.biomarkerconsult.com/uploads/1/3/0/7/130739508/6213822.pdf
- http://files.northislandpag.com/uploads/1/3/0/7/130739564/gumorazozudatit.pdf
- http://files.missiontrips.livingwatersspanish.com/uploads/1/3/2/7/132740338/b10a56f80.pdf
- http://duvelixox.officiallpscon.com/uploads/1/3/0/7/130776078/6230048.pdf
- http://files.dorchestercuboree.com/uploads/1/3/0/8/130814124/5168523.pdf
- http://files.mitchellartschool.com/uploads/1/3/0/9/130969190/mezijolemusepi.pdf
- http://files.angeklickt.li/uploads/1/3/0/9/130969151/lunakad.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
- ggtraff.ru
- uploads.strikinglycdn.com
- site-1036962.mozfiles.com
- site-1036629.mozfiles.com
- files.arttecheducation.com
- files.biomarkerconsult.com
- files.northislandpag.com
- files.missiontrips.livingwatersspanish.com
- duvelixox.officiallpscon.com
- files.dorchestercuboree.com
- files.mitchellartschool.com
- www.w3.org
- purl.org
- ns.adobe.com
- files.angeklickt.li
Embedded IP addresses
- 40.79.141.154
- 13.89.179.15
- 51.116.246.105
- 172.66.2.5
- 52.230.60.54
- 52.110.12.20
- 4.230.171.124
- 57.155.101.212
- 20.76.201.171
- 52.123.129.14
- 74.178.240.61
- 135.234.160.245
- 72.153.5.133
- 203.26.79.13
- 52.123.252.240
- 4.247.188.233
- 52.178.17.235
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report