blustealer | ee2dcb13a7dfaeaa3aea32272b9ea2b54afee47edf4234b299e8e8c89c631bf2

General

Target

SecuriteInfo.com.W32.AIDetectNet.01.9499.exe
Size

781KB
MD5

2363b71b194a80c4ee951a41e2c5b645
SHA1

02c724cdcbb3b7569deb2e1cb8211d5dc31b3532
SHA256

ee2dcb13a7dfaeaa3aea32272b9ea2b54afee47edf4234b299e8e8c89c631bf2
SHA512

d72efbfaa04df1dc400e958128dc875eb6cb856292ea9275e478b0a9a2b60ef342514d61652f96e20437ea90a14680f9dd3b852f45707345c5d078f25e018104

Score

10^/10

blustealer persistence stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
B9@jPT5115

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

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-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Uarexqz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Lwsbz\\Uarexqz.exe\""	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4488 set thread context of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4032	powershell.exe
4032	powershell.exe
4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe
4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4032	powershell.exe
Token: SeDebugPrivilege	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
740	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4032	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	81
PID 4488 wrote to memory of 4032	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	81
PID 4488 wrote to memory of 4032	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	81
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84
PID 4488 wrote to memory of 740	4488	SecuriteInfo.com.W32.AIDetectNet.01.9499.exe	84

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.9499.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.9499.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4032
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.9499.exe
  C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.9499.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:740

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/740-147-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/740-146-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/740-143-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/740-141-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/4032-136-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/4032-137-0x0000000006400000-0x000000000641E000-memory.dmp

Filesize
120KB

Download
memory/4032-138-0x0000000007A40000-0x00000000080BA000-memory.dmp

Filesize
6.5MB

Download
memory/4032-139-0x00000000068A0000-0x00000000068BA000-memory.dmp

Filesize
104KB

Download
memory/4032-135-0x0000000005550000-0x00000000055B6000-memory.dmp

Filesize
408KB

Download
memory/4032-134-0x0000000005610000-0x0000000005C38000-memory.dmp

Filesize
6.2MB

Download
memory/4032-133-0x0000000004E30000-0x0000000004E66000-memory.dmp

Filesize
216KB

Download
memory/4488-130-0x00000000006C0000-0x000000000078A000-memory.dmp

Filesize
808KB

Download
memory/4488-131-0x0000000005280000-0x00000000052A2000-memory.dmp

Filesize
136KB

Download

Analysis

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