MALICIOUS — a55b811dadf9ac9ed4a6b15d166300f6a5bde7a78b0271b67fdac35177a52f99

MALICIOUS — a55b811dadf9ac9ed4a6b15d166300f6a5bde7a78b0271b67fdac35177a52f99 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Rozena family. 5 of 56 detection engines flagged it.

Identification

• SHA-256: a55b811dadf9ac9ed4a6b15d166300f6a5bde7a78b0271b67fdac35177a52f99
• SHA-1: f33ddce7f817282c472dcbeda3697fa78f0f82e7
• MD5: f1590ce6f43ed0ed54066c21dbbf07bf
• imphash: 5c8fa77c8c333334f0655785409c03a5
• ssdeep: 1536:XrEm4VPWIzde96YgVY/dgh0yGNlbje89rQ0odQ93Sd:bEm4NBdeQYJ/dgSyGNxjvoCI
• TLSH: T1A83A7C8AF201A75DFBB34BA744A24E0E588790FD88F448515FCBCC1C1770CDBA5A15A5
• Submitted as: a55b811dadf9ac9ed4a6b15d166300f6a5bde7a78b0271b67fdac35177a52f99
• File type: pe · Size: 94208 bytes
• Verdict: malicious (100/100) · Family: Rozena

Detections (5 of 56 engines)

• ClamAV (daily): Win.Trojan.MSShellcode-6360728-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Microsoft Defender: Trojan:Win32/Meterpreter.A
• Emsisoft (Emergency Kit): Trojan.Patched.SAP.Gen
• Kaspersky (KVRT): HEUR:Trojan.Win32.Generic

Why this verdict

The malicious score of 100/100 is the fusion of 9 weighted signals:

• ClamAV (daily) flagged Win.Trojan.MSShellcode-6360728-0 (rule Win.Trojan.MSShellcode-6360728-0) - engine signal, weight 0.90, confidence 0.95
• Extracted Rozena config (1 C2) - engine signal, weight 0.80, confidence 0.90
• Memory forensics: 1 finding(s) attributed to the sample across 1 technique(s), e.g. RWX/private injected region in tsk_12539112b7 (pid 5972) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
• Microsoft Defender flagged Trojan:Win32/Meterpreter.A (rule Trojan:Win32/Meterpreter.A) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Trojan.Patched.SAP.Gen (rule Trojan.Patched.SAP.Gen) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Generic (rule HEUR:Trojan.Win32.Generic) - engine signal, weight 0.55, confidence 0.85
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70
• Contacted 1 external host(s) and 18 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Memory forensics: 4 finding(s) elsewhere in the guest, not attributed to this sample, e.g. process hidden from a listing (rule windows.psxview.PsXView) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

39 behavior events · 0 ATT&CK techniques · 7 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• ctldl.windowsupdate.com
• update.googleapis.com
• login.live.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• config.edge.skype.com
• officeclient.microsoft.com
• windows.msn.com
• www.msn.com
• odc.officeapps.live.com
• settings-win.data.microsoft.com
• assets.msn.com

Dropped files

• b8f9089f6031c33f7aaf95626822b43f2abae70a63c46565f52f811d2f598b51 - b8f9089f6031c33f7aaf95626822b43f2abae70a63c46565f52f811d2f598b51
• a0836c8c5ba84f0694754290b941e4c2d944b783897f7657a8da088a7ff3268c - a0836c8c5ba84f0694754290b941e4c2d944b783897f7657a8da088a7ff3268c
• cf0de78929c40811c710f7fced9e625dbbd7385070adfd9c246b34009f9e0a08 - cf0de78929c40811c710f7fced9e625dbbd7385070adfd9c246b34009f9e0a08
• 147fdfc24bae1284c92bb2dc532d84c97bb9cb9c0d3e1e637805a3031ca07437 - 147fdfc24bae1284c92bb2dc532d84c97bb9cb9c0d3e1e637805a3031ca07437
• c9a7de040b95da4538acc645d0fb89de3ddc509a80d6a44ef87cc32cf4a5373f - c9a7de040b95da4538acc645d0fb89de3ddc509a80d6a44ef87cc32cf4a5373f
• b742da2a095cc08865fd4dfcfb49eb5da261839114ffb175a9f5ec0c113e116a - b742da2a095cc08865fd4dfcfb49eb5da261839114ffb175a9f5ec0c113e116a
• f0df6078d70d680e6e0c719748a117de43e6252bf70affb36a107e8a3c0a7fc0 - f0df6078d70d680e6e0c719748a117de43e6252bf70affb36a107e8a3c0a7fc0

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

• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 52.168.112.67
• 52.123.252.229
• 4.230.171.124
• 20.42.179.204
• 20.247.185.124
• 135.233.95.144
• 74.179.77.164
• 40.79.141.153
• 104.46.162.224
• 104.18.33.89
• 1.116.128.63
• 20.42.65.90
• 20.50.201.195
• 52.148.114.188
• 72.145.35.105
• 52.110.12.51
• 52.110.12.22

File paths

• D:\360

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report