azorult | f519262929d4793f6fa538f80ce1a4c378b6bfa16b09cb8ac63475fd1b1bd39b

General

Target

proforma invoice.exe
Size

394KB
MD5

d8a0ede0fcd30761f746596b82919aeb
SHA1

f00457715b1f97e4327d3d79d51bc6d82d9a988c
SHA256

f519262929d4793f6fa538f80ce1a4c378b6bfa16b09cb8ac63475fd1b1bd39b
SHA512

49f4ededbc3b23281b9a01d9c5e67ee168342972992fbea913d28f071d7bad91ee451c12516784f3b96c77907cce2f429891070c6f412cf71016efc8d1c0f4d3

Score

10^/10

discovery trojan infostealer azorult spyware

Malware Config

Extracted

Family

azorult

C2

https://hotelavlokan.com/fungg/32/index.php

Signatures

JavaScript code in executable 1 IoCs

resource	yara_rule
behavioral1/files/0x00030000000131da-8.dat	js

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

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 WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24
PID 1088 wrote to memory of 1120	1088	proforma invoice.exe	24

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1088	proforma invoice.exe

Loads dropped DLL 16 IoCs

pid	Process
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe
1120	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1120	RegAsm.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1088 set thread context of 1120	1088	proforma invoice.exe	24

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

C:\Users\Admin\AppData\Local\Temp\proforma invoice.exe
"C:\Users\Admin\AppData\Local\Temp\proforma invoice.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:1088
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks processor information in registry
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:1120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1120-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1120-4-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1120-5-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1120-3-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1120-6-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1120-2-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1120-7-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

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