blustealer | 0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3

General

Target

0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
Size

890KB
MD5

8cd3c408dbd87894a290c93b12dce3e1
SHA1

4533184218003ac6dbc6c3f96be401f5628e8179
SHA256

0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3
SHA512

7cf03c51d853605ee2a5cf2767b2b9e2a0ef6f230e216e3f65fc51fc5c4a380241ad89d63f2c83e8a66ba96961ac4250d2a12d04f9e9b78f22d2193e8d93856d
SSDEEP

12288:kpYfwJH4IGqlyHQ/wUg1pVL7lYMGdR/bm1fgIawQIa92vs+O7LPc+CqoCg4S7hK:wYobiwxKfgnwzaEvsJjf84S7

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718

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/1668-77-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1668-78-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1668-80-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1668-82-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

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

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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Eeowfswp = "\"C:\\Users\\Admin\\AppData\\Roaming\\Btzyc\\Eeowfswp.exe\""	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.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 968 set thread context of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 1092 set thread context of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31

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 3 IoCs

pid	Process
968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
2000	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
Token: SeDebugPrivilege	2000	powershell.exe
Token: SeDebugPrivilege	1668	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 2000	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	28
PID 968 wrote to memory of 2000	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	28
PID 968 wrote to memory of 2000	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	28
PID 968 wrote to memory of 2000	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	28
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 968 wrote to memory of 1092	968	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	30
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31
PID 1092 wrote to memory of 1668	1092	0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe	31

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\0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
"C:\Users\Admin\AppData\Local\Temp\0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2000
- C:\Users\Admin\AppData\Local\Temp\0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
  C:\Users\Admin\AppData\Local\Temp\0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1092
- - 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:1668

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/968-55-0x0000000000D80000-0x0000000000E5C000-memory.dmp

Filesize
880KB

Download
memory/968-56-0x0000000075921000-0x0000000075923000-memory.dmp

Filesize
8KB

Download
memory/968-57-0x0000000001030000-0x00000000010C2000-memory.dmp

Filesize
584KB

Download
memory/968-54-0x00000000012B0000-0x0000000001394000-memory.dmp

Filesize
912KB

Download
memory/1092-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1092-85-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1092-84-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1092-71-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1092-63-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1092-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1092-66-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1668-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1668-75-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1668-80-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1668-82-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/2000-62-0x000000006FF00000-0x00000000704AB000-memory.dmp

Filesize
5.7MB

Download
memory/2000-61-0x000000006FF00000-0x00000000704AB000-memory.dmp

Filesize
5.7MB

Download
memory/2000-60-0x000000006FF00000-0x00000000704AB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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