blustealer | bd3939614126a2d4f1f34c18338872065d3c6f02f4a8ed01a2c864e6a83aa2b0

General

Target

QUOTATION _RFQ# 1043999.exe
Size

1.1MB
MD5

e434e422d6bb9bc02f9a4be0b1c41d1b
SHA1

af7347b789fb43b26a83f4864e50eedf7f62095e
SHA256

c269b1931db163462343d0ecd8ef501e35e4da91c91f1464c8d526ef07a041bd
SHA512

72ffed26dfa5617a70852e88d8058d6adebcbd771bc3f0102f8fcf9bdddcac2264b37d07b5fd4790c177ad87f81fce0253ff9fc85c22f8034c066e66df657552
SSDEEP

24576:nVlj9vY9URDvRtWBQDtty/ziBgqMSAqzQYkYJrrzZL:nVB9g9YDptWuryduIA1L

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\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
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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1480 set thread context of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 320 set thread context of 984	320	QUOTATION _RFQ# 1043999.exe	30

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 7 IoCs

pid	Process
1480	QUOTATION _RFQ# 1043999.exe
1480	QUOTATION _RFQ# 1043999.exe
1480	QUOTATION _RFQ# 1043999.exe
1480	QUOTATION _RFQ# 1043999.exe
1480	QUOTATION _RFQ# 1043999.exe
1480	QUOTATION _RFQ# 1043999.exe
1480	QUOTATION _RFQ# 1043999.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	QUOTATION _RFQ# 1043999.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
320	QUOTATION _RFQ# 1043999.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 304	1480	QUOTATION _RFQ# 1043999.exe	28
PID 1480 wrote to memory of 304	1480	QUOTATION _RFQ# 1043999.exe	28
PID 1480 wrote to memory of 304	1480	QUOTATION _RFQ# 1043999.exe	28
PID 1480 wrote to memory of 304	1480	QUOTATION _RFQ# 1043999.exe	28
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 1480 wrote to memory of 320	1480	QUOTATION _RFQ# 1043999.exe	29
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30
PID 320 wrote to memory of 984	320	QUOTATION _RFQ# 1043999.exe	30

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\QUOTATION _RFQ# 1043999.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe
  "C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"
  2⤵
  PID:304
- C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe
  "C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:320
- - 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:984

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/320-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/320-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/320-71-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/320-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/320-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/320-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/320-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/320-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/984-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/984-72-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/984-74-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/984-76-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/984-78-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/984-79-0x0000000004410000-0x00000000044CC000-memory.dmp

Filesize
752KB

Download
memory/1480-60-0x0000000005A40000-0x0000000005AB6000-memory.dmp

Filesize
472KB

Download
memory/1480-59-0x0000000005740000-0x000000000582A000-memory.dmp

Filesize
936KB

Download
memory/1480-58-0x00000000002B0000-0x00000000002BC000-memory.dmp

Filesize
48KB

Download
memory/1480-57-0x0000000004F30000-0x0000000004F70000-memory.dmp

Filesize
256KB

Download
memory/1480-56-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/1480-54-0x0000000001060000-0x0000000001178000-memory.dmp

Filesize
1.1MB

Download
memory/1480-55-0x0000000004F30000-0x0000000004F70000-memory.dmp

Filesize
256KB

Download

Analysis

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