azorult | 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22

Analysis

max time kernel
120s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17-05-2024 01:46

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General

Target

9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
Size

66KB
MD5

2451fe4d6f61c5160d2c938c144a8a53
SHA1

ab101316ff60cda1b7a4bfc1d535c234c0d60936
SHA256

9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22
SHA512

abc4246b910ac8c997d9f0ec07116f9035e97a2a0410b90414c4ce8bd3deaf2a05c19428749d3ffd486e01ac70979df7a54231b521331092d5d2cbbe7bc95329
SSDEEP

1536:Puca4wJAD99k/5/CuojaFLEf2X9JT8GJQ2Hs3hGH:HaP09NgJAGJQ2HpH

Score

10^/10

azorult purelogstealer collection discovery infostealer persistence spyware stealer trojan

Malware Config

Signatures

Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
trojan infostealer azorult
PureLog Stealer
PureLog Stealer is an infostealer written in C#.
stealer purelogstealer

PureLog Stealer payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000800000002338e-4893.dat	family_purelog_stealer
behavioral2/memory/4376-4901-0x0000000000570000-0x000000000058A000-memory.dmp	family_purelog_stealer

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral2/memory/3268-1-0x0000000000910000-0x0000000000922000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	Mrmjzj.exe

Loads dropped DLL 4 IoCs

pid	Process
916	RegAsm.exe
916	RegAsm.exe
916	RegAsm.exe
916	RegAsm.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RegAsm.exe

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

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\uvef = "C:\\Users\\Admin\\AppData\\Roaming\\uvef.exe"	Mrmjzj.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\uvef = "C:\\Users\\Admin\\AppData\\Roaming\\uvef.exe"	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3268 set thread context of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 4376 set thread context of 2068	4376	Mrmjzj.exe	103

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1388	timeout.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2068	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
916	RegAsm.exe
916	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
Token: SeDebugPrivilege	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
Token: SeDebugPrivilege	4376	Mrmjzj.exe
Token: SeDebugPrivilege	4376	Mrmjzj.exe
Token: SeDebugPrivilege	2068	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 4376	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	96
PID 3268 wrote to memory of 4376	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	96
PID 3268 wrote to memory of 4376	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	96
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 3268 wrote to memory of 916	3268	9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe	97
PID 916 wrote to memory of 1864	916	RegAsm.exe	100
PID 916 wrote to memory of 1864	916	RegAsm.exe	100
PID 916 wrote to memory of 1864	916	RegAsm.exe	100
PID 1864 wrote to memory of 1388	1864	cmd.exe	102
PID 1864 wrote to memory of 1388	1864	cmd.exe	102
PID 1864 wrote to memory of 1388	1864	cmd.exe	102
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103
PID 4376 wrote to memory of 2068	4376	Mrmjzj.exe	103

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
"C:\Users\Admin\AppData\Local\Temp\9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3268
- C:\Users\Admin\AppData\Local\Temp\Mrmjzj.exe
  "C:\Users\Admin\AppData\Local\Temp\Mrmjzj.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4376
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of AdjustPrivilegeToken
    PID:2068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:916
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "RegAsm.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1864
  - - C:\Windows\SysWOW64\timeout.exe
      C:\Windows\system32\timeout.exe 3
      4⤵
      Delays execution with timeout.exe
      PID:1388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3F05544B\mozglue.dll

Filesize
135KB

MD5
9e682f1eb98a9d41468fc3e50f907635

SHA1
85e0ceca36f657ddf6547aa0744f0855a27527ee

SHA256
830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d

SHA512
230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\3F05544B\msvcp140.dll

Filesize
429KB

MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

Download Submit
C:\Users\Admin\AppData\Local\Temp\3F05544B\nss3.dll

Filesize
1.2MB

MD5
556ea09421a0f74d31c4c0a89a70dc23

SHA1
f739ba9b548ee64b13eb434a3130406d23f836e3

SHA256
f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb

SHA512
2481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2

Download Submit
C:\Users\Admin\AppData\Local\Temp\3F05544B\vcruntime140.dll

Filesize
81KB

MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Mrmjzj.exe

Filesize
93KB

MD5
93e85d15ef93ddf8ac964f84d9bec664

SHA1
e3d58cca51afd2449a11a8a18c5a0f871dbca59c

SHA256
816bb9cdaa18ffba5dbcedf69298718caac8a4ff6c674300a9299d0584a236c9

SHA512
acd703192f69af97cd6d288ad43b3b6dc6e711c7747f25af05a0f0fe3619b5c503857d0f6dbe93b4d5dd411b8f0a51cf25b8596396c756cf7f3faed57b00c49c

Download Submit
memory/2068-10775-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/2068-10774-0x00000000052A0000-0x00000000052F6000-memory.dmp

Filesize
344KB

Download
memory/2068-10773-0x0000000005030000-0x0000000005038000-memory.dmp

Filesize
32KB

Download
memory/2068-9918-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2068-9920-0x0000000005050000-0x0000000005116000-memory.dmp

Filesize
792KB

Download
memory/3268-23-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-7-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-65-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-63-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-61-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-59-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-55-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-51-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-49-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-47-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-45-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-43-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-41-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-37-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-35-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-33-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-31-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-29-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-27-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-25-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-0-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/3268-17-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-15-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-13-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-9-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-67-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-11-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-6-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-69-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-4886-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3268-4888-0x0000000005F10000-0x0000000005F5C000-memory.dmp

Filesize
304KB

Download
memory/3268-4887-0x0000000005F70000-0x0000000005FE2000-memory.dmp

Filesize
456KB

Download
memory/3268-57-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-4900-0x0000000008880000-0x00000000088D4000-memory.dmp

Filesize
336KB

Download
memory/3268-1-0x0000000000910000-0x0000000000922000-memory.dmp

Filesize
72KB

Download
memory/3268-2-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3268-4918-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3268-3-0x0000000008650000-0x0000000008886000-memory.dmp

Filesize
2.2MB

Download
memory/3268-4-0x0000000008E30000-0x00000000093D4000-memory.dmp

Filesize
5.6MB

Download
memory/3268-53-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-39-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-19-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-21-0x0000000008650000-0x0000000008880000-memory.dmp

Filesize
2.2MB

Download
memory/3268-5-0x0000000007330000-0x00000000073C2000-memory.dmp

Filesize
584KB

Download
memory/4376-9913-0x0000000005C70000-0x0000000005CD6000-memory.dmp

Filesize
408KB

Download
memory/4376-9919-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4376-9912-0x0000000006420000-0x0000000006522000-memory.dmp

Filesize
1.0MB

Download
memory/4376-4920-0x0000000005F20000-0x00000000061E6000-memory.dmp

Filesize
2.8MB

Download
memory/4376-4919-0x0000000004EC0000-0x0000000004EC6000-memory.dmp

Filesize
24KB

Download
memory/4376-4903-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4376-4901-0x0000000000570000-0x000000000058A000-memory.dmp

Filesize
104KB

Download