MALICIOUS — 5b4cad6f53eb5f1b88618535c078c75d2a0d7873b1392013a8f30f67a76f92e0

MALICIOUS — 5b4cad6f53eb5f1b88618535c078c75d2a0d7873b1392013a8f30f67a76f92e0 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Zusy family. 6 of 56 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

SHA-256: 5b4cad6f53eb5f1b88618535c078c75d2a0d7873b1392013a8f30f67a76f92e0
SHA-1: 149fe1a640da18b2c0d0b9880064e677a486fd08
MD5: 2775015feb7b264da7315d5308061329
imphash: c9b6c3da312e87a7377bab0dcbaf2d4a
ssdeep: 24576:SypW9SgLNZaOdcTMuUvxIg4i4sUkGWE/fRVZ1thY8cMzeu98MJwjA:St9SgLNZa6xIXiTGhXnZvd6VjA
TLSH: T1CA54331A053846C7C6A91E0A5B6E064ED53664EB4478FADE71E3B8F21856033FDA04CB
Submitted as: 5b4cad6f53eb5f1b88618535c078c75d2a0d7873b1392013a8f30f67a76f92e0
File type: pe · Size: 1108132 bytes
Verdict: malicious (100/100) · Family: Zusy

Detections (6 of 56 engines)

MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:
ClamAV (daily): Win.Malware.Zusy-9781883-0
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
Detect It Easy (packer/type): DIE:Microsoft Linker
Microsoft Defender: Trojan:Win32/Salgorea.VRR!MTB
Kaspersky (KVRT): Backdoor.Win32.Salgorea.id

MITRE ATT&CK

T1543.003

Why this verdict

The malicious score of 100/100 is the fusion of 10 weighted signals:

ClamAV (daily) flagged Win.Malware.Zusy-9781883-0 (rule Win.Malware.Zusy-9781883-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged Trojan:Win32/Salgorea.VRR!MTB (rule Trojan:Win32/Salgorea.VRR!MTB) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Backdoor.Win32.Salgorea.id (rule Backdoor.Win32.Salgorea.id) - 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
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 5 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70
MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-sections: (rule high-entropy-sections:) - engine signal, weight 0.35, confidence 0.70
Packing/obfuscation: high-entropy-sections:, Microsoft Linker - static signal, weight 0.25, confidence 0.55

Dynamic analysis (windows)

158 behavior events · 1 ATT&CK techniques · 5 dropped files.

Dropped files

C:\Users\analyst\AppData\Local\Temp\E3D8.tmp - 82501eeac60d36211af03a5765eb2024cec85c737cc9c97215539f4e3f057e27
cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 - cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2
ff4f017292c053d1c6e89f0058773b0d1edb8454b06fc4760a44415dc0ba8ae6 - ff4f017292c053d1c6e89f0058773b0d1edb8454b06fc4760a44415dc0ba8ae6
872cc2a2bce7f2524dec70c26ad4a34f954860c7b8ca8561fd72ddab089600d6 - 872cc2a2bce7f2524dec70c26ad4a34f954860c7b8ca8561fd72ddab089600d6
6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2 - 6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2

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

20.42.65.85
4.230.171.124
4.247.188.233
4.144.132.223
20.165.94.54
20.184.175.4
20.165.94.63
104.18.33.89
52.110.12.44
52.110.12.38

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report