blustealer | a3b4760fbda9e11f889e4faf484d6e76d57a83cb69c0c3ad9e54d8bfc575275f

General

Target

fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe
Size

964KB
MD5

d5a045e300184028b6a6dfc75a303307
SHA1

5fc5a4a17bc5ad2e7ee4da563d5a348c618c0cf9
SHA256

fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23
SHA512

0fb4fe0cc538995303669b8a3bb1576c0c462caee47ff2c8c2545ea760c21a4f9a36be8600295f9ea98034afc313cc63de2940b21013a04ad2d29070b539dae1
SSDEEP

24576:5MaB1dLvo9yPmx0k6F9FkjefS/cIXVaUys/FvV:5pB1Zw9yPk6fFkjCihllFv

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474

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-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\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 1688 set thread context of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1164 set thread context of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.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
1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1688 wrote to memory of 1164	1688	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	28
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29
PID 1164 wrote to memory of 784	1164	fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe
"C:\Users\Admin\AppData\Local\Temp\fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe
  "C:\Users\Admin\AppData\Local\Temp\fd482fa2269db98e32ec1a0ecb21f132083e07dfdccf4baa9ec8d305c63eae23.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1164
- - 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:784

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/784-72-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/784-79-0x0000000004580000-0x000000000463C000-memory.dmp

Filesize
752KB

Download
memory/784-78-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/784-76-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/784-74-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/784-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1164-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1164-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1164-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1164-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1164-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1164-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1164-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1164-71-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1688-54-0x0000000000A90000-0x0000000000B88000-memory.dmp

Filesize
992KB

Download
memory/1688-59-0x0000000005A40000-0x0000000005AFA000-memory.dmp

Filesize
744KB

Download
memory/1688-58-0x00000000003F0000-0x00000000003FC000-memory.dmp

Filesize
48KB

Download
memory/1688-57-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download
memory/1688-56-0x0000000000260000-0x0000000000272000-memory.dmp

Filesize
72KB

Download
memory/1688-55-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download
memory/1688-60-0x0000000005950000-0x00000000059D6000-memory.dmp

Filesize
536KB

Download

Analysis

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