MALICIOUS — 857fb886c3d296d479e9ae3806ed7bf5dd4b0e03090e4e701189217207cd2036

MALICIOUS — 857fb886c3d296d479e9ae3806ed7bf5dd4b0e03090e4e701189217207cd2036 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Salgorea family. 6 of 56 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

SHA-256: 857fb886c3d296d479e9ae3806ed7bf5dd4b0e03090e4e701189217207cd2036
SHA-1: d44d6d56a1075fac5ae84a779f4acdb102db6405
MD5: ffeebd996770acc4d322d8111262bf05
imphash: c9b6c3da312e87a7377bab0dcbaf2d4a
ssdeep: 24576:SypW9SgLNZaOdcTMuUvxIgmOz1Cz7WKaBpe9bYJ16sKz6aIvU8:St9SgLNZa6xIho1+7zaBpebYJ16sKas8
TLSH: T1A75433A2166A89DED1034F08832F114F9A22ADE40F98BE3F36E570B3C6915173EE1057
Submitted as: 857fb886c3d296d479e9ae3806ed7bf5dd4b0e03090e4e701189217207cd2036
File type: pe · Size: 1108132 bytes
Verdict: malicious (100/100) · Family: Salgorea

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 11 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
Memory forensics: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 3840) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

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

Dropped files

C:\Users\analyst\AppData\Local\Temp\CBAC.tmp - d509f119f93be31e51d6b793309a36d12f13cbc771a26827386698721fbfc25d
dbcc02bc104c638e916457a1095553c910eda9e194f0abb97f7ef072e1864f5a - dbcc02bc104c638e916457a1095553c910eda9e194f0abb97f7ef072e1864f5a
cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 - cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2
6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2 - 6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2
aada7f5406299e26eff850824195743a719de88c4cb34b22602b99c351ab185d - aada7f5406299e26eff850824195743a719de88c4cb34b22602b99c351ab185d

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

52.168.117.175
4.230.171.124
4.144.132.223
57.154.63.210
4.207.44.72
20.165.94.54
74.178.76.128
172.215.188.225
20.42.65.91
52.110.12.1

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report