azorult | c5d1c57f289c7f9f692ad7971b08ec1392082eda028916ff33c27da1c8c3326b

Analysis

max time kernel
26s
max time network
151s
platform
windows10_x64
resource
win10v20201028
submitted
05-01-2021 11:59

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General

Target

CLIENT_C.EXE
Size

1.6MB
MD5

9ca10ebf8150fc630b901be36a1bec85
SHA1

f1cdd2674307a97af387016cb6f42a1419c403a6
SHA256

49024e33c5bc92bb5751ba5d1c00fcfe16f7ab7663550c19a94fdb9d841c8879
SHA512

521656149dd6498d9050640c7d2f1da627e788228527e8d6796493a539ab3eb3cfc6779c2237dc5cab4343438725cbe78d3b8d6376ce3c952eb07eb36a305c2c

Score

10^/10

azorult discovery evasion infostealer persistence spyware trojan

Malware Config

Extracted

Family

azorult

http://eurodata1988.it/asy/PL341/index.php

Signatures

Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
trojan infostealer azorult

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

CLIENT_C.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\CLIENT_C.EXE\""	CLIENT_C.EXE

Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Drops startup file 2 IoCs

Processes:

CLIENT_C.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CLIENT_C.EXE	CLIENT_C.EXE
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CLIENT_C.EXE	CLIENT_C.EXE

Loads dropped DLL 4 IoCs

Processes:

CLIENT_C.EXE

pid process

2584 CLIENT_C.EXE
2584 CLIENT_C.EXE
2584 CLIENT_C.EXE
2584 CLIENT_C.EXE
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
2584	CLIENT_C.EXE
2584	CLIENT_C.EXE
2584	CLIENT_C.EXE
2584	CLIENT_C.EXE

Windows security modification 2 TTPs 11 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

CLIENT_C.EXE

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	CLIENT_C.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	CLIENT_C.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	CLIENT_C.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CLIENT_C.EXE = "0"	CLIENT_C.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	CLIENT_C.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	CLIENT_C.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	CLIENT_C.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	CLIENT_C.EXE
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\CLIENT_C.EXE = "0"	CLIENT_C.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	CLIENT_C.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	CLIENT_C.EXE

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

CLIENT_C.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CLIENT_C.EXE"	CLIENT_C.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\CLIENT_C.EXE = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CLIENT_C.EXE"	CLIENT_C.EXE

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

JavaScript code in executable 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\4210A729\nss3.dll	js

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of SetThreadContext 1 IoCs

Processes:

CLIENT_C.EXE

description pid process target process

PID 508 set thread context of 2584 508 CLIENT_C.EXE CLIENT_C.EXE

description	pid	process	target process
PID 508 set thread context of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

CLIENT_C.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	CLIENT_C.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	CLIENT_C.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeCLIENT_C.EXE

pid	process
3760	powershell.exe
4012	powershell.exe
2884	powershell.exe
3432	powershell.exe
3432	powershell.exe
3760	powershell.exe
2884	powershell.exe
4012	powershell.exe
2884	powershell.exe
4012	powershell.exe
3760	powershell.exe
3432	powershell.exe
2584	CLIENT_C.EXE
2584	CLIENT_C.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

CLIENT_C.EXEpowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	508	CLIENT_C.EXE
Token: SeDebugPrivilege	4012	powershell.exe
Token: SeDebugPrivilege	2884	powershell.exe
Token: SeDebugPrivilege	3432	powershell.exe
Token: SeDebugPrivilege	3760	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

CLIENT_C.EXE

description	pid	process	target process
PID 508 wrote to memory of 3760	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 3760	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 3760	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 3432	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 3432	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 3432	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 4012	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 4012	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 4012	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 2884	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 2884	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 2884	508	CLIENT_C.EXE	powershell.exe
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE
PID 508 wrote to memory of 2584	508	CLIENT_C.EXE	CLIENT_C.EXE

C:\Users\Admin\AppData\Local\Temp\CLIENT_C.EXE
"C:\Users\Admin\AppData\Local\Temp\CLIENT_C.EXE"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:508

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CLIENT_C.EXE" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3760

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CLIENT_C.EXE" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3432

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CLIENT_C.EXE" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4012

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\CLIENT_C.EXE" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2884

C:\Users\Admin\AppData\Local\Temp\CLIENT_C.EXE
"C:\Users\Admin\AppData\Local\Temp\CLIENT_C.EXE"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2584

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Disabling Security Tools

T1089

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Web Service

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
MD5
db01a2c1c7e70b2b038edf8ad5ad9826

SHA1
540217c647a73bad8d8a79e3a0f3998b5abd199b

SHA256
413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d

SHA512
c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
9ef6712304d5f388be3efeeb47f06d9b

SHA1
31b79d2cc5208b078759fc01ea430edb49df9551

SHA256
6ee0959bf05950a57a9a4f790e1ad24a82cf15a34a717b827dee2e7818073199

SHA512
1878040a4cce1e4ff17af425b3f19b2ab2942c8eea5aea762fdeff573061c18b526ba96aab3f09953f1714fed7ce439ed93759a1b04a8a2dccd67bb0872ed916

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
9ef6712304d5f388be3efeeb47f06d9b

SHA1
31b79d2cc5208b078759fc01ea430edb49df9551

SHA256
6ee0959bf05950a57a9a4f790e1ad24a82cf15a34a717b827dee2e7818073199

SHA512
1878040a4cce1e4ff17af425b3f19b2ab2942c8eea5aea762fdeff573061c18b526ba96aab3f09953f1714fed7ce439ed93759a1b04a8a2dccd67bb0872ed916

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\4210A729\mozglue.dll
MD5
9e682f1eb98a9d41468fc3e50f907635

SHA1
85e0ceca36f657ddf6547aa0744f0855a27527ee

SHA256
830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d

SHA512
230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed

Download Submit
\Users\Admin\AppData\Local\Temp\4210A729\msvcp140.dll
MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

Download Submit
\Users\Admin\AppData\Local\Temp\4210A729\nss3.dll
MD5
556ea09421a0f74d31c4c0a89a70dc23

SHA1
f739ba9b548ee64b13eb434a3130406d23f836e3

SHA256
f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb

SHA512
2481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2

Download Submit
\Users\Admin\AppData\Local\Temp\4210A729\vcruntime140.dll
MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Download Submit
memory/508-6-0x0000000005100000-0x0000000005101000-memory.dmp

Filesize
4KB

Download
memory/508-9-0x0000000000FF0000-0x000000000102B000-memory.dmp

Filesize
236KB

Download
memory/508-8-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/508-7-0x00000000051A0000-0x00000000051A1000-memory.dmp

Filesize
4KB

Download
memory/508-2-0x0000000073520000-0x0000000073C0E000-memory.dmp

Filesize
6.9MB

Download
memory/508-5-0x0000000005520000-0x0000000005521000-memory.dmp

Filesize
4KB

Download
memory/508-3-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/2584-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2584-39-0x000000000041A684-mapping.dmp

Download
memory/2584-44-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2884-13-0x0000000000000000-mapping.dmp

Download
memory/2884-22-0x0000000073520000-0x0000000073C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2884-40-0x00000000076F0000-0x00000000076F1000-memory.dmp

Filesize
4KB

Download
memory/2884-45-0x0000000007A40000-0x0000000007A41000-memory.dmp

Filesize
4KB

Download
memory/2884-53-0x0000000007E60000-0x0000000007E61000-memory.dmp

Filesize
4KB

Download
memory/3432-14-0x0000000073520000-0x0000000073C0E000-memory.dmp

Filesize
6.9MB

Download
memory/3432-11-0x0000000000000000-mapping.dmp

Download
memory/3432-112-0x0000000008FF0000-0x0000000008FF1000-memory.dmp

Filesize
4KB

Download
memory/3432-97-0x0000000008C90000-0x0000000008C91000-memory.dmp

Filesize
4KB

Download
memory/3760-101-0x0000000008E40000-0x0000000008E41000-memory.dmp

Filesize
4KB

Download
memory/3760-26-0x0000000006CC0000-0x0000000006CC1000-memory.dmp

Filesize
4KB

Download
memory/3760-15-0x0000000073520000-0x0000000073C0E000-memory.dmp

Filesize
6.9MB

Download
memory/3760-17-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/3760-10-0x0000000000000000-mapping.dmp

Download
memory/3760-93-0x0000000007C10000-0x0000000007C11000-memory.dmp

Filesize
4KB

Download
memory/3760-49-0x0000000007CA0000-0x0000000007CA1000-memory.dmp

Filesize
4KB

Download
memory/3760-20-0x0000000006D60000-0x0000000006D61000-memory.dmp

Filesize
4KB

Download
memory/3760-105-0x0000000008DF0000-0x0000000008DF1000-memory.dmp

Filesize
4KB

Download
memory/4012-66-0x0000000008FB0000-0x0000000008FE3000-memory.dmp

Filesize
204KB

Download
memory/4012-30-0x0000000007890000-0x0000000007891000-memory.dmp

Filesize
4KB

Download
memory/4012-12-0x0000000000000000-mapping.dmp

Download
memory/4012-34-0x0000000007A00000-0x0000000007A01000-memory.dmp

Filesize
4KB

Download
memory/4012-16-0x0000000073520000-0x0000000073C0E000-memory.dmp

Filesize
6.9MB

Download