MALICIOUS — a03bf2b79f2800a1aa40a7ea58e6ae61eef6e11fd4eaaad214570c611f409d15

MALICIOUS — a03bf2b79f2800a1aa40a7ea58e6ae61eef6e11fd4eaaad214570c611f409d15 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Zusy family. 4 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: a03bf2b79f2800a1aa40a7ea58e6ae61eef6e11fd4eaaad214570c611f409d15
SHA-1: 2c48a8e246a36fb8f7209b4e9c52dc57ad1d9653
MD5: 2f4d637dc1c38f722f06b134fe2bac66
imphash: 95122753ea27818b35f9b51859e4c692
ssdeep: 49152:OFUcx88PWPOpX0SFOjvD0xgEkTG+q3NKfUP4J4wicAyHyGc:O+K88uPCHsTlEl3sf0wJDyGc
TLSH: T1515A23C65A29570AE2F2D480381A276D8441F4DA97BC09CA93CFF06E77DB53B243215B
Submitted as: a03bf2b79f2800a1aa40a7ea58e6ae61eef6e11fd4eaaad214570c611f409d15
File type: pe · Size: 2089472 bytes
Verdict: malicious (100/100) · Family: Zusy

Detections (4 of 56 engines)

ClamAV (daily): Win.Malware.Zusy-9764479-0
Microsoft Defender: Trojan:Win32/Salgorea!pz
Emsisoft (Emergency Kit): Trojan.GenericKDZ.110085
Kaspersky (KVRT): Backdoor.Win32.Salgorea.ie

MITRE ATT&CK

Why this verdict

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

ClamAV (daily) flagged Win.Malware.Zusy-9764479-0 (rule Win.Malware.Zusy-9764479-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged Trojan:Win32/Salgorea!pz (rule Trojan:Win32/Salgorea!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Trojan.GenericKDZ.110085 (rule Trojan.GenericKDZ.110085) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Backdoor.Win32.Salgorea.ie (rule Backdoor.Win32.Salgorea.ie) - 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: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

12934 behavior events · 2 ATT&CK techniques · 3 dropped files.

Dropped files

c:\users\analyst\appdata\local\temp\tsk_429c1d83d1e74451.docx - f0c1b360c0b24b5450a79138650e6ee254afae6ce8f6c68da7d1f32f91582680
C:\Users\analyst\AppData\Local\Temp\F8D7.tmp - e71a1f082b03edea2ca7d311fb1548d85ef75f87a5c040f0d80fd97180eedbcb
7a83d393e664a6ed7bb424d0a8c59dc82990f3932f8ddf0fdbb9e3056ade4b52 - 7a83d393e664a6ed7bb424d0a8c59dc82990f3932f8ddf0fdbb9e3056ade4b52

Embedded URLs

http://schemas.microsoft.com/SMI/2005/WindowsSettings
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded domains

schemas.microsoft.com

Embedded IP addresses

52.168.117.174
4.230.171.124
40.84.85.40
4.144.132.223
74.178.76.54
74.178.76.128
52.168.117.169
92.223.78.30
52.110.12.3
52.110.12.40
135.234.160.245
72.153.5.138
52.148.114.188
52.110.12.50
52.110.12.32

File paths

R:\xV

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report