MALICIOUS — d3acf2f836393d8761e7b26115d4f328b2fdcd27e1d4473c7033c2855fcc2c10

MALICIOUS — d3acf2f836393d8761e7b26115d4f328b2fdcd27e1d4473c7033c2855fcc2c10 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: d3acf2f836393d8761e7b26115d4f328b2fdcd27e1d4473c7033c2855fcc2c10
SHA-1: 01e5a8fa7b78686f0365ad20563b3d1947ed7f6e
MD5: e123b7365674aca61aaf838cb69ca563
imphash: c9b6c3da312e87a7377bab0dcbaf2d4a
ssdeep: 24576:SypW9SgLNZaOdcTMuUvxIg+9m0QFNjU8Wr3kBlOIJLBkjgx01sCZnYrVG2r:St9SgLNZa6xI5mDpWGlPJLCj6CZCVdr
TLSH: T11054239D120CA966D5C767E84DAE0ACFC12158E4082C6C7B33F6B9A344B4E273E65943
Submitted as: d3acf2f836393d8761e7b26115d4f328b2fdcd27e1d4473c7033c2855fcc2c10
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)

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

Dropped files

C:\Users\analyst\AppData\Local\Temp\E3E7.tmp - 09c95bae0e7fcc7af25f09ac5258d3ff40a1bfa6d6c168546c2cd5eea644ff29
cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 - cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2
19403806ecd6f6205e5a664f5befb5c1b5c0fb22d5245acd0f11f1f8ac5feba0 - 19403806ecd6f6205e5a664f5befb5c1b5c0fb22d5245acd0f11f1f8ac5feba0
7f06fddae993baf1403c4dee4f0e1ec8cedcb7a26c30a760ee476d36a01ebb59 - 7f06fddae993baf1403c4dee4f0e1ec8cedcb7a26c30a760ee476d36a01ebb59
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

4.207.44.69
52.123.252.236
4.230.171.124
85.210.193.152
85.210.196.11
4.144.132.114
74.178.240.51
4.150.223.102
20.165.94.63
74.178.76.128
52.110.12.47
52.110.12.45

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report