blustealer | c37e211564b4d5b3447fd8be8526724a4193ac8d9a99efddc3d599f7b5e6af51

General

Target

PMI 22-8143_pdf.exe
Size

881KB
MD5

61b7350c1d830391036bdf7ac96e7fef
SHA1

585c6f1f8c37b82154188733e97e3e1111f214fb
SHA256

c37e211564b4d5b3447fd8be8526724a4193ac8d9a99efddc3d599f7b5e6af51
SHA512

6408cbcc79e47110b5522af699a4eb2411c8dfdfd8db64cfe2c5c6a3eb200308d0dc55c9019192a191553c65c7ca3e33d46b6eae98cf667489b1d3b810295281
SSDEEP

24576:YDB9nM8vHaTmly301VMB6PWslKEW7SsvuXe:YVytKA3mEiWBjzvuX

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-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 688	2000	PMI 22-8143_pdf.exe	28
PID 688 set thread context of 1980	688	PMI 22-8143_pdf.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
688	PMI 22-8143_pdf.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 2000 wrote to memory of 688	2000	PMI 22-8143_pdf.exe	28
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29
PID 688 wrote to memory of 1980	688	PMI 22-8143_pdf.exe	29

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\PMI 22-8143_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PMI 22-8143_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\PMI 22-8143_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\PMI 22-8143_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:688
- - 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:1980

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/688-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/688-81-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/688-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/688-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/688-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/688-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/688-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/688-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1980-71-0x0000000000120000-0x0000000000186000-memory.dmp

Filesize
408KB

Download
memory/1980-75-0x0000000000120000-0x0000000000186000-memory.dmp

Filesize
408KB

Download
memory/1980-79-0x00000000049A0000-0x00000000049E0000-memory.dmp

Filesize
256KB

Download
memory/1980-78-0x0000000004D60000-0x0000000004E1C000-memory.dmp

Filesize
752KB

Download
memory/1980-77-0x0000000000120000-0x0000000000186000-memory.dmp

Filesize
408KB

Download
memory/1980-72-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1980-73-0x0000000000120000-0x0000000000186000-memory.dmp

Filesize
408KB

Download
memory/2000-57-0x0000000002290000-0x00000000022D0000-memory.dmp

Filesize
256KB

Download
memory/2000-54-0x0000000000C40000-0x0000000000D22000-memory.dmp

Filesize
904KB

Download
memory/2000-60-0x0000000005350000-0x00000000053C6000-memory.dmp

Filesize
472KB

Download
memory/2000-58-0x0000000000240000-0x000000000024C000-memory.dmp

Filesize
48KB

Download
memory/2000-59-0x00000000052A0000-0x000000000534C000-memory.dmp

Filesize
688KB

Download
memory/2000-56-0x0000000000220000-0x0000000000234000-memory.dmp

Filesize
80KB

Download
memory/2000-55-0x0000000002290000-0x00000000022D0000-memory.dmp

Filesize
256KB

Download

Analysis

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