MALICIOUS — cf419945bd25ea6ec85bbbafc03ded3d918e7fb78c04b9ce4e6ed0ce6566c152

MALICIOUS — cf419945bd25ea6ec85bbbafc03ded3d918e7fb78c04b9ce4e6ed0ce6566c152 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the SelfDel family. 4 of 56 detection engines flagged it, exhibiting 6 ATT&CK techniques.

Identification

SHA-256: cf419945bd25ea6ec85bbbafc03ded3d918e7fb78c04b9ce4e6ed0ce6566c152
SHA-1: f8fbdf984105796a253f20f32c6dd20093e142d1
MD5: d11d1b73c1a911be601a0d67d1fb81f0
imphash: 170193414cc4abf0ae27dc2a19d74879
ssdeep: 768:qZL/0F24lercjO4sTZg5ZLvn2IuWZ0kqKNPWQHpl:OLsF2Kerc64sTiX2IV0Dhul
TLSH: T18B30396647309602F391A68B55403F4DB0B6A8EE3136C7518EE2B67E8BE045738B847C
Submitted as: cf419945bd25ea6ec85bbbafc03ded3d918e7fb78c04b9ce4e6ed0ce6566c152
File type: pe · Size: 36868 bytes
Verdict: malicious (100/100) · Family: SelfDel

Detections (4 of 56 engines)

ClamAV (daily): Win.Malware.Juko-9753236-0
Microsoft Defender: Trojan:Win32/SelfDel!pz
Emsisoft (Emergency Kit): Trojan.Downloader.JUKO
Kaspersky (KVRT): HEUR:Trojan.Win32.SelfDel.gen

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 14 weighted signals:

ClamAV (daily) flagged Win.Malware.Juko-9753236-0 (rule Win.Malware.Juko-9753236-0) - engine signal, weight 0.90, confidence 0.95
2 behavioral detection(s) across 2 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.63, confidence 0.90
Microsoft Defender flagged Trojan:Win32/SelfDel!pz (rule Trojan:Win32/SelfDel!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Trojan.Downloader.JUKO (rule Trojan.Downloader.JUKO) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged HEUR:Trojan.Win32.SelfDel.gen (rule HEUR:Trojan.Win32.SelfDel.gen) - 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 3 external host(s) and 20 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497.001, T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
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)

15619 behavior events · 3 ATT&CK techniques · 1 dropped files.

Dropped files

C:\Users\analyst\AppData\Roaming\Mozilla\WINWORD.exe - 6bb1503b60eefc4490d939d9eedbfaee36e4daff9143fcab1ceaa9ea7044c7df

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://i.assmio.com/3B0536AA8A81ED92000010F7F932901A.aspx
http://i.assmio.com/3B6B56AC8A81EF72000018704B39FE83.shtm
http://i.assmio.com/3BC8A6A88A81F16D00001FDBF24C4A9E.676B
http://i.assmio.com/3C1756AC8A81F2DC000025A84B7D3306.shtm
http://i.assmio.com/7B5E86AF8A2BCF5E0000274D8A1A77B0.616F
http://i.assmio.com/7BAA66AD8A2BD0D800002D170246671E.438P
http://i.assmio.com/7BBBA6A88A2BD13800002EB93115C339.aspx

Embedded domains

i.assmio.com

Embedded IP addresses

4.150.223.107
52.123.252.232
4.230.171.124
40.84.85.40
20.247.184.197
74.179.77.164
74.178.240.61
20.42.179.204
52.110.12.21
52.110.12.2
172.233.212.90
172.178.240.161
20.42.72.131
13.69.116.108
135.234.160.245
72.153.5.129
52.148.114.188
52.110.12.45
52.110.12.48

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report