MALICIOUS — 870e17f96a403c3dcd522d3ca5c2ee8e2ef003221b48dd9e0eb15c9dbf1e7b3c

MALICIOUS — 870e17f96a403c3dcd522d3ca5c2ee8e2ef003221b48dd9e0eb15c9dbf1e7b3c is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Vobfus family. 5 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: 870e17f96a403c3dcd522d3ca5c2ee8e2ef003221b48dd9e0eb15c9dbf1e7b3c
• SHA-1: d63adb8a34568c62b3d50f7fd104c3785a839514
• MD5: 0947935e3ad9788e9ae4d29ea5076c17
• imphash: b806352ebc796e5060cd13bc5e12711d
• ssdeep: 1536:gjl0cc+Bn3FOB+dGrNjjmJ2NuKuFr1M5Br2QbCcI05:P+B3FOB++jOKbd5
• TLSH: T1BC3B91C40CE8D0A1CEA497878E4569FC058EEDABB222507419C9AA1BD7C21FF507E15F
• Submitted as: 870e17f96a403c3dcd522d3ca5c2ee8e2ef003221b48dd9e0eb15c9dbf1e7b3c
• File type: pe · Size: 102400 bytes
• Verdict: malicious (100/100) · Family: Vobfus

Detections (5 of 56 engines)

• ClamAV (daily): Win.Trojan.Changeup-6169544-0
• Microsoft Defender: Worm:Win32/Vobfus.EH
• Emsisoft (Emergency Kit): Gen:Variant.Pronny.2
• Trellix Stinger (McAfee): Trojan-FAEI!0947935E3AD9
• Kaspersky (KVRT): Trojan.Win32.Jorik.Vobfus.ahog

MITRE ATT&CK

• T1547.001
• T1543.003
• T1112
• T1105

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

• ClamAV (daily) flagged Win.Trojan.Changeup-6169544-0 (rule Win.Trojan.Changeup-6169544-0) - engine signal, weight 0.90, confidence 0.95
• 1 behavioral detection(s) across 1 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.60, confidence 0.90
• Microsoft Defender flagged Worm:Win32/Vobfus.EH (rule Worm:Win32/Vobfus.EH) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Variant.Pronny.2 (rule Gen:Variant.Pronny.2) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged Trojan-FAEI!0947935E3AD9 (rule Trojan-FAEI!0947935E3AD9) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Trojan.Win32.Jorik.Vobfus.ahog (rule Trojan.Win32.Jorik.Vobfus.ahog) - engine signal, weight 0.55, confidence 0.85
• Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
• Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
• Contacted 27 external host(s) and 15 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

45825 behavior events · 3 ATT&CK techniques · 4 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• ns1.spansearcher.net
• ns1.spinsearcher.org
• ns1.player1352.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• update.googleapis.com
• desktop-hsgcbep
• self.events.data.microsoft.com
• 251.0.0.224.in-addr.arpa
• 1.0.240.10.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
• 252.0.0.224.in-addr.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

Dropped files

• C:\Users\analyst\xioobuc.exe - 7e33f7b3c6be019a5e765de435e0a70696786f384dc8938b4b445a3f6500ef66
• 963ac3c0ff8c9954efabac0c450caf26131de40a9e37ea01f095539f242ea25b - 963ac3c0ff8c9954efabac0c450caf26131de40a9e37ea01f095539f242ea25b
• 4206fbfe85218c6b75eb65ee6bdf76d8d8dfdaae86b0142fcd66a5cbd173a996 - 4206fbfe85218c6b75eb65ee6bdf76d8d8dfdaae86b0142fcd66a5cbd173a996
• 0ffcac81731018a35b77e9bac43cd7d521a703b2b61ee5339cd8f43873fc1d5d - 0ffcac81731018a35b77e9bac43cd7d521a703b2b61ee5339cd8f43873fc1d5d

Embedded URLs

• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/

Embedded domains

• ns1.spansearcher.net
• ns1.spinsearcher.org
• ns1.player1352.net
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 4.150.223.101
• 72.154.7.106
• 72.145.35.103
• 72.145.35.97
• 40.84.97.4
• 40.79.197.34
• 203.26.79.13
• 72.145.35.102
• 4.150.223.112
• 52.148.114.188
• 20.42.73.27
• 20.42.73.30
• 172.215.188.232
• 4.150.223.114
• 52.110.12.21
• 4.150.223.106
• 172.172.255.218
• 4.207.44.68
• 172.172.255.217
• 40.84.85.40
• 20.42.73.28
• 74.178.232.29
• 85.210.193.152
• 13.69.239.69
• 51.104.15.252

File paths

• C:\Program
• C:\Windows\system32;C:\Windows\system;

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report