blustealer | da7f7bddce0402e2c6e547009034a7745842bdeeedfc9fc36a2761270ea350cb

General

Target

SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe
Size

1.2MB
MD5

f316c250f78bc5c1ac83ec3993c9edec
SHA1

9807d7dd5f9446b6b9990d0bf3b57c669de8e172
SHA256

da7f7bddce0402e2c6e547009034a7745842bdeeedfc9fc36a2761270ea350cb
SHA512

0ceff2a91e474257f1ca40d223cdcce9181f417d16c79c52e252ff488761377a2ac451fc9d11dc084706b68a19c71565e867754fcf305ddf96b34eec05a9d6fd
SSDEEP

24576:VnghTrx6br3u40UMffEOU4PPaUVVrXpqTiwAAgEEY4:Vghnx6br3u40jEOUcPRVPqTQp

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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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 1308 set thread context of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 580 set thread context of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.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
580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 1308 wrote to memory of 580	1308	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	27
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28
PID 580 wrote to memory of 812	580	SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen19.16538.28645.2062.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:580
- - 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:812

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/580-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/580-83-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/580-72-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/580-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/580-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/580-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/580-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/812-73-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/812-75-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/812-78-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/812-80-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/812-82-0x0000000004830000-0x00000000048EC000-memory.dmp

Filesize
752KB

Download
memory/1308-59-0x0000000007CF0000-0x0000000007D86000-memory.dmp

Filesize
600KB

Download
memory/1308-58-0x0000000007FA0000-0x000000000806C000-memory.dmp

Filesize
816KB

Download
memory/1308-57-0x00000000004C0000-0x00000000004CE000-memory.dmp

Filesize
56KB

Download
memory/1308-56-0x0000000000490000-0x00000000004A6000-memory.dmp

Filesize
88KB

Download
memory/1308-54-0x00000000000F0000-0x0000000000228000-memory.dmp

Filesize
1.2MB

Download
memory/1308-55-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download

Analysis

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