blustealer | b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab

General

Target

SecuriteInfo.com.Win32.PWSX-gen.8058.exe
Size

1.0MB
MD5

56ef7a3ec68e156065b4ca3a21b677c0
SHA1

1921d5a2f2d1094d57ed81cf0fb4f1972d5ec314
SHA256

b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab
SHA512

4c5a5246a5f464cceaee9b000d21d3ae5aa88226ef6f0ab64e63ddbeacbfc302d017a472aaa89e4d0a52d40288f3c8219bf023f04e9a6978598728a1b2f413d1
SSDEEP

12288:0kNjmex1ahAd3gFuKlthapQXWtG6o/mFM+aG:0kxmeLdQjrGtho/EM+

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

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 4 IoCs

resource	yara_rule
behavioral1/memory/336-79-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/336-77-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/336-75-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/336-74-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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
4	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1944 set thread context of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1148 set thread context of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28

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 5 IoCs

pid	Process
1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe
1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe
1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe
1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe
1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe
Token: SeDebugPrivilege	336	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1944 wrote to memory of 1148	1944	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	27
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28
PID 1148 wrote to memory of 336	1148	SecuriteInfo.com.Win32.PWSX-gen.8058.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.8058.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.8058.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.8058.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.8058.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1148
- - 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:336

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/336-72-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/336-74-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/336-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/336-79-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1148-63-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1148-81-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1148-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1148-82-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1148-61-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1148-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1148-60-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1944-59-0x00000000022C0000-0x0000000002300000-memory.dmp

Filesize
256KB

Download
memory/1944-57-0x0000000000490000-0x000000000049C000-memory.dmp

Filesize
48KB

Download
memory/1944-56-0x0000000000630000-0x000000000064A000-memory.dmp

Filesize
104KB

Download
memory/1944-58-0x0000000005F00000-0x0000000005F96000-memory.dmp

Filesize
600KB

Download
memory/1944-55-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

Filesize
8KB

Download
memory/1944-54-0x0000000000DB0000-0x0000000000EBC000-memory.dmp

Filesize
1.0MB

Download

Analysis

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