blustealer | 950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e

General

Target

950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe
Size

446KB
MD5

96fe8d6e260227c0c4f6ed082a59212b
SHA1

031b0930a59444204a672a99423a97bd7e02f83c
SHA256

950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e
SHA512

bad0737c0b73a001a434c77afc0b9ddf64f81a7c7010cf36f88579d7851905110245ac06f1dc1615ca5af986fd1882f9dc27d0cc4bc766380110e6933dcfd360
SSDEEP

12288:fWnxfgsRL4u/1AlLK6FRY2n8OPKxGvYmBC:YxgsRftD0C2nKGs

Score

10^/10

blustealer collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5813496253:AAF4hamIx4-mNmFF1DwsqdJ4F9vUBmFqLo/sendMessage?chat_id=1105271645

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-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1316 set thread context of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28

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
1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28
PID 1316 wrote to memory of 920	1316	950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe
"C:\Users\Admin\AppData\Local\Temp\950cd4516e6bff899e1c4b28bda9867aa713e6818b28f36c7a613fcfeda6a53e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - outlook_office_path
  - outlook_win_path
  PID:920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/920-57-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/920-58-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/920-59-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/920-61-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/920-63-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/920-64-0x0000000000A90000-0x0000000000B4C000-memory.dmp

Filesize
752KB

Download
memory/1316-56-0x0000000000400000-0x0000000000471A1C-memory.dmp

Filesize
454KB

Download
memory/1316-65-0x0000000000400000-0x0000000000471A1C-memory.dmp

Filesize
454KB

Download

Analysis

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