blustealer | f4537ab3fdeb176d352dca40facb96f493d634f7d03140e2275be2ea33678e33

General

Target

a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
Size

851KB
MD5

3d695f1b4db5a0635d43e1cd1b9d48ae
SHA1

377936812ab222b69380049be6ad28208e135603
SHA256

a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0
SHA512

268e47ebb3d159ee3c33a0b0b5d8c4a272430544c01ff2c66c7918fabcba66e784edebd435e1200f0c0ce44c317b771f3b076d4548f9fbcd905079d47a434185
SSDEEP

12288:Y+vTN8RVtfK8cyo7qyy8SpCrqLKL2MhkHEmY4FrHSzn7rwR8mGyqF7qbnZ4Xb:Y6TNUVU8cmJ4rM3akk14JH+n78Z4Xb

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1220 set thread context of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1160 set thread context of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1220 wrote to memory of 1160	1220	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	28
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29
PID 1160 wrote to memory of 1344	1160	a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
  "C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1160
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - outlook_office_path
    - outlook_win_path
    PID:1344

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1160-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1160-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1160-71-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1160-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1160-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1160-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1160-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1160-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1220-59-0x00000000052C0000-0x000000000536C000-memory.dmp

Filesize
688KB

Download
memory/1220-60-0x0000000004AC0000-0x0000000004B36000-memory.dmp

Filesize
472KB

Download
memory/1220-54-0x00000000000B0000-0x000000000018C000-memory.dmp

Filesize
880KB

Download
memory/1220-58-0x0000000000440000-0x000000000044C000-memory.dmp

Filesize
48KB

Download
memory/1220-57-0x0000000005030000-0x0000000005070000-memory.dmp

Filesize
256KB

Download
memory/1220-56-0x0000000000430000-0x0000000000444000-memory.dmp

Filesize
80KB

Download
memory/1220-55-0x0000000005030000-0x0000000005070000-memory.dmp

Filesize
256KB

Download
memory/1344-72-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1344-74-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1344-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1344-76-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1344-78-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1344-79-0x00000000024A0000-0x000000000255C000-memory.dmp

Filesize
752KB

Download

Analysis

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