MALICIOUS — 4b425018ecd2b0a5d7516062dd4f9f291ea65780caa519fccd2b602353cec59b

MALICIOUS — 4b425018ecd2b0a5d7516062dd4f9f291ea65780caa519fccd2b602353cec59b is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Krucky family. 6 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: 4b425018ecd2b0a5d7516062dd4f9f291ea65780caa519fccd2b602353cec59b
SHA-1: 487d52cb531e80310cf2cf1d8f0ece9ed11880ab
MD5: f94faf7238f7dc8cb08632a38245d1ab
imphash: 87bed5a7cba00c7e1f4015f1bdae2183
ssdeep: 3072:2ZegVckL3vI+eOUE/LWQTIITheOpYJ3u7:2ZbL3vTX6QkUMVJ3u7
TLSH: T1753B122C28D32585D6E28EB2862A5F7CF7A30D05381291739706299FC5C523BD31FD6A
Submitted as: 4b425018ecd2b0a5d7516062dd4f9f291ea65780caa519fccd2b602353cec59b
File type: pe · Size: 107008 bytes
Verdict: malicious (100/100) · Family: Krucky

Detections (6 of 56 engines)

MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:kkrunchy
ClamAV (daily): Win.Packed.Krucky-6941986-0
Detect It Easy (packer/type): DIE:kkrunchy
Microsoft Defender: Trojan:Win32/Krucky!pz
Emsisoft (Emergency Kit): Gen:Packer.Krucky.B.geW@aOjGdin
Kaspersky (KVRT): HEUR:Trojan.Win32.Generic

MITRE ATT&CK

Why this verdict

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

ClamAV (daily) flagged Win.Packed.Krucky-6941986-0 (rule Win.Packed.Krucky-6941986-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged Trojan:Win32/Krucky!pz (rule Trojan:Win32/Krucky!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Packer.Krucky.B.geW@aOjGdin (rule Gen:Packer.Krucky.B.geW@aOjGdin) - 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
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s) across 1 rule(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 2 external host(s) and 6 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1082 - dynamic signal, weight 0.40, confidence 0.75
Detect It Easy (packer/type) flagged DIE:kkrunchy (rule DIE:kkrunchy) - engine signal, weight 0.35, confidence 0.70
MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-sections:kkrunchy (rule high-entropy-sections:kkrunchy) - engine signal, weight 0.35, confidence 0.70
Packing/obfuscation: high-entropy-sections:kkrunchy, kkrunchy - static signal, weight 0.25, confidence 0.55
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

20035 behavior events · 2 ATT&CK techniques · 1 dropped files.

Dropped files

47d1bab3c8af0891804cc9a12fd861626243e37e18b42cdfd383e70b02192146 - 47d1bab3c8af0891804cc9a12fd861626243e37e18b42cdfd383e70b02192146

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://www.virustotal.com/vtapi/v2/file/scan
http://twitter.com/pidoras6

Embedded domains

3w.ru
www.virustotal.com

Embedded IP addresses

20.184.175.9
20.247.184.142
4.230.171.124
172.64.154.167
34.54.88.138
57.155.104.224
72.153.5.62
52.148.114.188
172.66.0.227
52.110.12.54
52.110.12.53

More Krucky samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report