blustealer | 8d07cd7ceb888ec77c8f28fc6f3e61791605c4c2cdaad7ff31450cb9c94358fd

General

Target

e2419d65e2d88ed19b494daaccc05712.exe
Size

105KB
MD5

e2419d65e2d88ed19b494daaccc05712
SHA1

3e3db7a4f0beafa3c41827020b76b20d27cb6767
SHA256

8d07cd7ceb888ec77c8f28fc6f3e61791605c4c2cdaad7ff31450cb9c94358fd
SHA512

eade4b4d24b17a95cb0f6163ee2c3df5442f3581ca11a68ee831e436c3f2f95e2fadf833d128b03ac40f6bb6d637ed53792c04ee43eedf397301a0ce9d010109
SSDEEP

3072:9Cc53RIZ2BtFUQd7JrnQjm7szl7sC7wwn:lIZ25UUQj9zl7I

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5576673774:AAF__hFRh9bcJV72HkFb-9eZR9JNNyuOmFM/sendMessage?chat_id=1194722650

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/1912-77-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1912-78-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1912-80-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1912-82-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\chrome = "\"C:\\Users\\Admin\\AppData\\Roaming\\google\\chrome.exe\""	e2419d65e2d88ed19b494daaccc05712.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
7	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1324 set thread context of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1552 set thread context of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30

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 1 IoCs

pid	Process
1360	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	e2419d65e2d88ed19b494daaccc05712.exe
Token: SeDebugPrivilege	1360	powershell.exe
Token: SeDebugPrivilege	1912	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1552	e2419d65e2d88ed19b494daaccc05712.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 1360	1324	e2419d65e2d88ed19b494daaccc05712.exe	27
PID 1324 wrote to memory of 1360	1324	e2419d65e2d88ed19b494daaccc05712.exe	27
PID 1324 wrote to memory of 1360	1324	e2419d65e2d88ed19b494daaccc05712.exe	27
PID 1324 wrote to memory of 1360	1324	e2419d65e2d88ed19b494daaccc05712.exe	27
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1324 wrote to memory of 1552	1324	e2419d65e2d88ed19b494daaccc05712.exe	29
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30
PID 1552 wrote to memory of 1912	1552	e2419d65e2d88ed19b494daaccc05712.exe	30

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\e2419d65e2d88ed19b494daaccc05712.exe
"C:\Users\Admin\AppData\Local\Temp\e2419d65e2d88ed19b494daaccc05712.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwA1AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1360
- C:\Users\Admin\AppData\Local\Temp\e2419d65e2d88ed19b494daaccc05712.exe
  C:\Users\Admin\AppData\Local\Temp\e2419d65e2d88ed19b494daaccc05712.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1552
- - 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:1912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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/1324-54-0x0000000000AA0000-0x0000000000AC0000-memory.dmp

Filesize
128KB

Download
memory/1324-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1324-56-0x0000000005800000-0x00000000058F0000-memory.dmp

Filesize
960KB

Download
memory/1324-57-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/1360-60-0x000000006F950000-0x000000006FEFB000-memory.dmp

Filesize
5.7MB

Download
memory/1360-61-0x000000006F950000-0x000000006FEFB000-memory.dmp

Filesize
5.7MB

Download
memory/1360-62-0x000000006F950000-0x000000006FEFB000-memory.dmp

Filesize
5.7MB

Download
memory/1552-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1552-64-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1552-63-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1552-66-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1552-71-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1552-84-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1552-85-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1912-75-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1912-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1912-80-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1912-82-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download

Analysis

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