azorult | b85f098f87d269c3dddfb92af4f85492a0da382e0ef03c8b6a10a54ae45998ea

Analysis

max time kernel
149s
max time network
181s
platform
windows7_x64
resource
win7v20210410
submitted
13-06-2021 14:01

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General

Target

CF3E02420036747DF018012AB33DEC0A.exe
Size

319KB
MD5

cf3e02420036747df018012ab33dec0a
SHA1

ce9db535821d7d43efeaf7e23df75977cb36d908
SHA256

b85f098f87d269c3dddfb92af4f85492a0da382e0ef03c8b6a10a54ae45998ea
SHA512

a36c0ecc4184f0f815e55bfc3c67bd1a1b3cc6473e51e0e4af881278e05597273973aeeda5df0af502f5a502000cf858583bd694cfcbfee850df0b9c607e7fbd

Score

10^/10

azorult webmonitor backdoor discovery infostealer persistence rat spyware stealer trojan upx

Malware Config

Extracted

Family

azorult

http://80.85.136.155/mia/index.php

Signatures

Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
trojan infostealer azorult
RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
backdoor rat infostealer webmonitor

Executes dropped EXE 2 IoCs

pid	Process
1784	ExcelViewer.exe
552	ExcelViewer.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/552-99-0x0000000000400000-0x00000000004F6000-memory.dmp	upx

Loads dropped DLL 19 IoCs

pid	Process
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
388	CF3E02420036747DF018012AB33DEC0A.exe
1784	ExcelViewer.exe

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
T1081
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
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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081
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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-3c00 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-3c00.exe"	ExcelViewer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-3c00 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-3c00.exe"	ExcelViewer.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 1208 set thread context of 388	1208	CF3E02420036747DF018012AB33DEC0A.exe	29
PID 1784 set thread context of 552	1784	ExcelViewer.exe	33

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	CF3E02420036747DF018012AB33DEC0A.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	CF3E02420036747DF018012AB33DEC0A.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
388	CF3E02420036747DF018012AB33DEC0A.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1208	CF3E02420036747DF018012AB33DEC0A.exe
1784	ExcelViewer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	552	ExcelViewer.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1208	CF3E02420036747DF018012AB33DEC0A.exe
1784	ExcelViewer.exe
552	ExcelViewer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 388	1208	CF3E02420036747DF018012AB33DEC0A.exe	29
PID 1208 wrote to memory of 388	1208	CF3E02420036747DF018012AB33DEC0A.exe	29
PID 1208 wrote to memory of 388	1208	CF3E02420036747DF018012AB33DEC0A.exe	29
PID 1208 wrote to memory of 388	1208	CF3E02420036747DF018012AB33DEC0A.exe	29
PID 1208 wrote to memory of 388	1208	CF3E02420036747DF018012AB33DEC0A.exe	29
PID 388 wrote to memory of 1784	388	CF3E02420036747DF018012AB33DEC0A.exe	32
PID 388 wrote to memory of 1784	388	CF3E02420036747DF018012AB33DEC0A.exe	32
PID 388 wrote to memory of 1784	388	CF3E02420036747DF018012AB33DEC0A.exe	32
PID 388 wrote to memory of 1784	388	CF3E02420036747DF018012AB33DEC0A.exe	32
PID 1784 wrote to memory of 552	1784	ExcelViewer.exe	33
PID 1784 wrote to memory of 552	1784	ExcelViewer.exe	33
PID 1784 wrote to memory of 552	1784	ExcelViewer.exe	33
PID 1784 wrote to memory of 552	1784	ExcelViewer.exe	33
PID 1784 wrote to memory of 552	1784	ExcelViewer.exe	33

C:\Users\Admin\AppData\Local\Temp\CF3E02420036747DF018012AB33DEC0A.exe
"C:\Users\Admin\AppData\Local\Temp\CF3E02420036747DF018012AB33DEC0A.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\CF3E02420036747DF018012AB33DEC0A.exe
  "C:\Users\Admin\AppData\Local\Temp\CF3E02420036747DF018012AB33DEC0A.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Users\Admin\AppData\Local\Temp\ExcelViewer.exe
    "C:\Users\Admin\AppData\Local\Temp\ExcelViewer.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1784
  - - C:\Users\Admin\AppData\Local\Temp\ExcelViewer.exe
      "C:\Users\Admin\AppData\Local\Temp\ExcelViewer.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/388-67-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/388-68-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/552-99-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/552-100-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/552-101-0x0000000002CC0000-0x0000000003CC0000-memory.dmp

Filesize
16.0MB

Download
memory/1208-63-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1208-62-0x0000000076281000-0x0000000076283000-memory.dmp

Filesize
8KB

Download
memory/1208-64-0x0000000000260000-0x0000000000267000-memory.dmp

Filesize
28KB

Download
memory/1784-92-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download