blustealer | a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0

General

Target

QUOTATION _RFQ# 1043999.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-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\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 1696 set thread context of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 464 set thread context of 1688	464	QUOTATION _RFQ# 1043999.exe	27

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
464	QUOTATION _RFQ# 1043999.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 1696 wrote to memory of 464	1696	QUOTATION _RFQ# 1043999.exe	26
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27
PID 464 wrote to memory of 1688	464	QUOTATION _RFQ# 1043999.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\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 use of WriteProcessMemory
PID:1696
- 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:464
- - 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:1688

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/464-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/464-79-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/464-70-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/464-67-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/464-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/464-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/464-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/464-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1688-73-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1688-71-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1688-72-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1688-75-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1688-77-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1688-78-0x00000000048C0000-0x000000000497C000-memory.dmp

Filesize
752KB

Download
memory/1696-59-0x00000000051B0000-0x0000000005226000-memory.dmp

Filesize
472KB

Download
memory/1696-58-0x0000000004ED0000-0x0000000004F7C000-memory.dmp

Filesize
688KB

Download
memory/1696-57-0x00000000002F0000-0x00000000002FC000-memory.dmp

Filesize
48KB

Download
memory/1696-56-0x00000000002E0000-0x00000000002F4000-memory.dmp

Filesize
80KB

Download
memory/1696-54-0x0000000000DB0000-0x0000000000E8C000-memory.dmp

Filesize
880KB

Download
memory/1696-55-0x0000000004E90000-0x0000000004ED0000-memory.dmp

Filesize
256KB

Download

Analysis

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