blustealer | d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4

General

Target

d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe
Size

1.2MB
MD5

db8113681e395345f71223c1d18e40c4
SHA1

617ab388348ce4fa1bd203caa5558e570467db11
SHA256

d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4
SHA512

70302b571a40585a2776b8686fc9ac507456a317d1ab22dd6c43eba028d15ce2bef9bde0bf694d007869cb474c78b2706fc203f3608816819e9034ef76465b92
SSDEEP

24576:JxqZRqOIRqOMub30RfQVipC2mdQSDGSDFBi/txagaLNAJ4iTiwAAgEEY4:J3z0aiplJSDji1xawiiTQp

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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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 940 set thread context of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 784 set thread context of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 940 wrote to memory of 784	940	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	28
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29
PID 784 wrote to memory of 1772	784	d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe
"C:\Users\Admin\AppData\Local\Temp\d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:940
- C:\Users\Admin\AppData\Local\Temp\d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe
  "C:\Users\Admin\AppData\Local\Temp\d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:784
- - 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:1772

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/784-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/784-83-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/784-82-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/784-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/784-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/784-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/784-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/940-59-0x00000000080F0000-0x0000000008186000-memory.dmp

Filesize
600KB

Download
memory/940-54-0x00000000010A0000-0x00000000011E2000-memory.dmp

Filesize
1.3MB

Download
memory/940-58-0x0000000008020000-0x00000000080EC000-memory.dmp

Filesize
816KB

Download
memory/940-57-0x0000000000720000-0x000000000072E000-memory.dmp

Filesize
56KB

Download
memory/940-56-0x0000000000520000-0x0000000000536000-memory.dmp

Filesize
88KB

Download
memory/940-55-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download
memory/1772-72-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1772-74-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1772-77-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1772-79-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1772-81-0x0000000000FA0000-0x000000000105C000-memory.dmp

Filesize
752KB

Download

Analysis

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