blustealer | 3e1cab8195206e7bf50b34dde56656e54ab25af5fe4136f1f76fc60f7664fd79

General

Target

SecuriteInfo.com.Win32.RATX-gen.24895.exe
Size

853KB
MD5

ce0443c80c62db2b18578fb5aea2dcc3
SHA1

87e7a6b1a5d3812817a42fb4a0f9d21e90208e71
SHA256

3e1cab8195206e7bf50b34dde56656e54ab25af5fe4136f1f76fc60f7664fd79
SHA512

6fecf34d1bfe41c9c085dd9eeb23b29204090f1cf9081e9b7d7847d9c6b4bb345c222a39cfb20a7a350d3d5125d14b56151fc018e7e00eccb655854768853a26
SSDEEP

12288:Cx11Spw4M5vXRTiSTR9L3b+p2Po3dc5iKPAu/:CcppwfzRJ3bJQoiKPp

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5468731092:AAGGNQWBVRhX622u6xp1moMhaunIGtXuIxg/sendMessage?chat_id=1639214896

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/2312-146-0x0000000001390000-0x00000000013AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
42	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4304 set thread context of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 2936 set thread context of 2312	2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe	93

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe
Token: SeDebugPrivilege	2312	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 4304 wrote to memory of 2936	4304	SecuriteInfo.com.Win32.RATX-gen.24895.exe	92
PID 2936 wrote to memory of 2312	2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe	93
PID 2936 wrote to memory of 2312	2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe	93
PID 2936 wrote to memory of 2312	2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe	93
PID 2936 wrote to memory of 2312	2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe	93
PID 2936 wrote to memory of 2312	2936	SecuriteInfo.com.Win32.RATX-gen.24895.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24895.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24895.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24895.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24895.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2936
- - 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
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2312

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2312-146-0x0000000001390000-0x00000000013AA000-memory.dmp

Filesize
104KB

Download
memory/2936-144-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2936-139-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2936-141-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2936-147-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4304-135-0x00000000052A0000-0x00000000052AA000-memory.dmp

Filesize
40KB

Download
memory/4304-136-0x00000000079E0000-0x0000000007A7C000-memory.dmp

Filesize
624KB

Download
memory/4304-137-0x0000000007D30000-0x0000000007D96000-memory.dmp

Filesize
408KB

Download
memory/4304-132-0x0000000000780000-0x000000000085C000-memory.dmp

Filesize
880KB

Download
memory/4304-134-0x00000000051F0000-0x0000000005282000-memory.dmp

Filesize
584KB

Download
memory/4304-133-0x00000000056A0000-0x0000000005C44000-memory.dmp

Filesize
5.6MB

Download

Analysis

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