azorult | f4f320fd3ca17e544dc33f90d02a769ecba5dec0f05cc08b9981dfc5a81900f8

General

Target
gunzipped.exe
Size 300KB
Sample220315-hamvdagee9
SHA256 f4f320fd3ca17e544dc33f90d02a769ecba5dec0f05cc08b9981dfc5a81900f8
MD5 6bf580ccfa8cdef620ba37082e5f7d66
SHA1 d0e590d8615e640cc563a5d6294df8278ae3f2e5
SHA512 f6023345ca884ae4200748a17dc6f45e9001a2de5e09c278298968fd091c91f27c1ee6cfcc11b3934ed02b430a5e34d921aa4ff171db2e86656f0a0a2b49ca5e
MD5 SHA1 SHA512

Score

10^/10

azorult collection discovery infostealer spyware stealer trojan

Malware Config

Extracted

Family

azorult

C2

http://2.56.59.31/purelogs/index.php

Signatures

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

Checks computer location settings 2 TTPs 1 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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	gunzipped.exe

Loads dropped DLL 4 IoCs

pid	Process
4180	gunzipped.exe
4180	gunzipped.exe
4180	gunzipped.exe
4180	gunzipped.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 Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	gunzipped.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	gunzipped.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	gunzipped.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3284	4180	WerFault.exe	78
4900	4180	WerFault.exe	78

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
712	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4180	gunzipped.exe
4180	gunzipped.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 4744	4180	gunzipped.exe	83
PID 4180 wrote to memory of 4744	4180	gunzipped.exe	83
PID 4180 wrote to memory of 4744	4180	gunzipped.exe	83
PID 4744 wrote to memory of 712	4744	cmd.exe	87
PID 4744 wrote to memory of 712	4744	cmd.exe	87
PID 4744 wrote to memory of 712	4744	cmd.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	gunzipped.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	gunzipped.exe

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
1⤵
- 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:4180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "gunzipped.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Windows\SysWOW64\timeout.exe
    C:\Windows\system32\timeout.exe 3
    3⤵
    - Delays execution with timeout.exe
    PID:712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 2084
  2⤵
  - Program crash
  PID:3284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 1976
  2⤵
  - Program crash
  PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4180 -ip 4180
1⤵
PID:4620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4180 -ip 4180
1⤵
PID:1920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

4

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4180-130-0x000000000055D000-0x000000000056E000-memory.dmp

Download

memory/4180-131-0x000000000055D000-0x000000000056E000-memory.dmp

Download

memory/4180-132-0x00000000021B0000-0x00000000021CD000-memory.dmp

Download

memory/4180-133-0x0000000000400000-0x0000000000476000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads