azorult | fe117521cd5f1653cebc4d6a3bfd85dfd273e4df7d8e0204205779a951e421bc

General

Target

Dekont.pdf.exe
Size

410KB
MD5

0127bfef7d4408d3384e5792da7384d0
SHA1

261532f47c7467e35b1b6d405c1a0748182f768f
SHA256

fe117521cd5f1653cebc4d6a3bfd85dfd273e4df7d8e0204205779a951e421bc
SHA512

74a09f8a1712ef8b04b2d0664152f163a1e1a819f7ba2670d61d21646ce17e3e297a5f54cc24f6a98d768f1a5ec526877264278e6356cde11fc324102a2d317d

Score

10^/10

azorult discovery infostealer persistence spyware trojan

Malware Config

Extracted

Family

azorult

C2

http://blkgrupdoom.info/scgn/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:

reg.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\\Desktop\\yes.exe,"	reg.exe

Executes dropped EXE 2 IoCs

Processes:

yes.exeAddInProcess32.exe

pid process

3012 yes.exe
2636 AddInProcess32.exe
Loads dropped DLL 4 IoCs

Processes:

AddInProcess32.exe

pid process

2636 AddInProcess32.exe
2636 AddInProcess32.exe
2636 AddInProcess32.exe
2636 AddInProcess32.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
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

pid	process
3012	yes.exe
2636	AddInProcess32.exe

pid	process
2636	AddInProcess32.exe
2636	AddInProcess32.exe
2636	AddInProcess32.exe
2636	AddInProcess32.exe

JavaScript code in executable 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\2fda\nss3.dll	js

Suspicious use of SetThreadContext 1 IoCs

Processes:

yes.exe

description pid process target process

PID 3012 set thread context of 2636 3012 yes.exe AddInProcess32.exe

description	pid	process	target process
PID 3012 set thread context of 2636	3012	yes.exe	AddInProcess32.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:

AddInProcess32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AddInProcess32.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4040 timeout.exe

pid	process
4040	timeout.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

Dekont.pdf.exeyes.exeAddInProcess32.exe

pid	process
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
4052	Dekont.pdf.exe
3012	yes.exe
3012	yes.exe
2636	AddInProcess32.exe
2636	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Dekont.pdf.exeyes.exe

description pid process

Token: SeDebugPrivilege 4052 Dekont.pdf.exe
Token: SeDebugPrivilege 3012 yes.exe

description	pid	process
Token: SeDebugPrivilege	4052	Dekont.pdf.exe
Token: SeDebugPrivilege	3012	yes.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Dekont.pdf.execmd.exeyes.exeAddInProcess32.execmd.exe

description	pid	process	target process
PID 4052 wrote to memory of 2456	4052	Dekont.pdf.exe	cmd.exe
PID 4052 wrote to memory of 2456	4052	Dekont.pdf.exe	cmd.exe
PID 4052 wrote to memory of 2456	4052	Dekont.pdf.exe	cmd.exe
PID 2456 wrote to memory of 3772	2456	cmd.exe	reg.exe
PID 2456 wrote to memory of 3772	2456	cmd.exe	reg.exe
PID 2456 wrote to memory of 3772	2456	cmd.exe	reg.exe
PID 4052 wrote to memory of 3012	4052	Dekont.pdf.exe	yes.exe
PID 4052 wrote to memory of 3012	4052	Dekont.pdf.exe	yes.exe
PID 4052 wrote to memory of 3012	4052	Dekont.pdf.exe	yes.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 3012 wrote to memory of 2636	3012	yes.exe	AddInProcess32.exe
PID 2636 wrote to memory of 1896	2636	AddInProcess32.exe	cmd.exe
PID 2636 wrote to memory of 1896	2636	AddInProcess32.exe	cmd.exe
PID 2636 wrote to memory of 1896	2636	AddInProcess32.exe	cmd.exe
PID 1896 wrote to memory of 4040	1896	cmd.exe	timeout.exe
PID 1896 wrote to memory of 4040	1896	cmd.exe	timeout.exe
PID 1896 wrote to memory of 4040	1896	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\Dekont.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Dekont.pdf.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4052

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\Desktop\yes.exe,"
2⤵
- Suspicious use of WriteProcessMemory
PID:2456

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\Desktop\yes.exe,"
3⤵
- Modifies WinLogon for persistence
PID:3772

C:\Users\Admin\Desktop\yes.exe
"C:\Users\Admin\Desktop\yes.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2636

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "AddInProcess32.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:1896

C:\Windows\SysWOW64\timeout.exe
C:\Windows\system32\timeout.exe 3
5⤵
- Delays execution with timeout.exe
PID:4040

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\Desktop\yes.exe
MD5
0127bfef7d4408d3384e5792da7384d0

SHA1
261532f47c7467e35b1b6d405c1a0748182f768f

SHA256
fe117521cd5f1653cebc4d6a3bfd85dfd273e4df7d8e0204205779a951e421bc

SHA512
74a09f8a1712ef8b04b2d0664152f163a1e1a819f7ba2670d61d21646ce17e3e297a5f54cc24f6a98d768f1a5ec526877264278e6356cde11fc324102a2d317d

Download Submit
C:\Users\Admin\Desktop\yes.exe
MD5
0127bfef7d4408d3384e5792da7384d0

SHA1
261532f47c7467e35b1b6d405c1a0748182f768f

SHA256
fe117521cd5f1653cebc4d6a3bfd85dfd273e4df7d8e0204205779a951e421bc

SHA512
74a09f8a1712ef8b04b2d0664152f163a1e1a819f7ba2670d61d21646ce17e3e297a5f54cc24f6a98d768f1a5ec526877264278e6356cde11fc324102a2d317d

Download Submit
\Users\Admin\AppData\Local\Temp\2fda\mozglue.dll
MD5
9e682f1eb98a9d41468fc3e50f907635

SHA1
85e0ceca36f657ddf6547aa0744f0855a27527ee

SHA256
830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d

SHA512
230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed

Download Submit
\Users\Admin\AppData\Local\Temp\2fda\msvcp140.dll
MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

Download Submit
\Users\Admin\AppData\Local\Temp\2fda\nss3.dll
MD5
556ea09421a0f74d31c4c0a89a70dc23

SHA1
f739ba9b548ee64b13eb434a3130406d23f836e3

SHA256
f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb

SHA512
2481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2

Download Submit
\Users\Admin\AppData\Local\Temp\2fda\vcruntime140.dll
MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Download Submit
memory/1896-31-0x0000000000000000-mapping.dmp

Download
memory/2456-9-0x0000000000000000-mapping.dmp

Download
memory/2636-26-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2636-23-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2636-24-0x000000000041A1F8-mapping.dmp

Download
memory/3012-14-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

Download
memory/3012-21-0x0000000004E00000-0x0000000004E0B000-memory.dmp

Filesize
44KB

Download
memory/3012-22-0x0000000004E20000-0x0000000004E21000-memory.dmp

Filesize
4KB

Download
memory/3012-11-0x0000000000000000-mapping.dmp

Download
memory/3772-10-0x0000000000000000-mapping.dmp

Download
memory/4040-32-0x0000000000000000-mapping.dmp

Download
memory/4052-2-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

Download
memory/4052-8-0x00000000072D0000-0x00000000072D1000-memory.dmp

Filesize
4KB

Download
memory/4052-7-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/4052-6-0x0000000002390000-0x00000000023AE000-memory.dmp

Filesize
120KB

Download
memory/4052-5-0x0000000004980000-0x0000000004981000-memory.dmp

Filesize
4KB

Download
memory/4052-3-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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