blustealer | 5a5ac8f9a24fe3d9eb8c6e2bd6d947af89612157cf70302449c3fe787bc7ae76

General

Target

5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
Size

890KB
MD5

e0236718f5d4d70c2dc485d322834897
SHA1

f0276ffdd801d3440918269f5d880f0502bda55e
SHA256

5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081
SHA512

a7fae05a2aeb61acac13e682dcbff7bd000ecbb0ebc1350a62e528bc6abffe94db1e0cc0b71fa0b6cb90479e666b71dfa7406b8aeddff0bd9490d556a2fdc553
SSDEEP

24576:b4QWOM4PEXi53mZbPovZuFeBwEtumDDd+c6UcqK:b4QWV4Eq3mavEeBwEtfZ+cfcn

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-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 920 set thread context of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 1432 set thread context of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 776	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	27
PID 920 wrote to memory of 776	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	27
PID 920 wrote to memory of 776	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	27
PID 920 wrote to memory of 776	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	27
PID 920 wrote to memory of 1064	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	28
PID 920 wrote to memory of 1064	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	28
PID 920 wrote to memory of 1064	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	28
PID 920 wrote to memory of 1064	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	28
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 920 wrote to memory of 1432	920	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	29
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30
PID 1432 wrote to memory of 572	1432	5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:920
- C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
  "C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"
  2⤵
  PID:776
- C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
  "C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"
  2⤵
  PID:1064
- C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
  "C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1432
- - 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:572

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/572-73-0x0000000000250000-0x00000000002B6000-memory.dmp

Filesize
408KB

Download
memory/572-81-0x0000000004970000-0x00000000049B0000-memory.dmp

Filesize
256KB

Download
memory/572-80-0x0000000000DE0000-0x0000000000E9C000-memory.dmp

Filesize
752KB

Download
memory/572-79-0x0000000000250000-0x00000000002B6000-memory.dmp

Filesize
408KB

Download
memory/572-77-0x0000000000250000-0x00000000002B6000-memory.dmp

Filesize
408KB

Download
memory/572-75-0x0000000000250000-0x00000000002B6000-memory.dmp

Filesize
408KB

Download
memory/572-74-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/920-59-0x0000000004290000-0x00000000042D0000-memory.dmp

Filesize
256KB

Download
memory/920-61-0x0000000007EA0000-0x0000000007F16000-memory.dmp

Filesize
472KB

Download
memory/920-55-0x0000000004290000-0x00000000042D0000-memory.dmp

Filesize
256KB

Download
memory/920-56-0x0000000000340000-0x0000000000352000-memory.dmp

Filesize
72KB

Download
memory/920-57-0x0000000004290000-0x00000000042D0000-memory.dmp

Filesize
256KB

Download
memory/920-58-0x00000000004F0000-0x00000000004FC000-memory.dmp

Filesize
48KB

Download
memory/920-54-0x00000000000C0000-0x00000000001A6000-memory.dmp

Filesize
920KB

Download
memory/920-60-0x0000000005F00000-0x0000000005FAC000-memory.dmp

Filesize
688KB

Download
memory/1432-66-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1432-72-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1432-69-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1432-67-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1432-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1432-64-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1432-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1432-82-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

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