blustealer | 0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3

Analysis

max time kernel
136s
max time network
71s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
09-09-2022 00:45

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General

Target

SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.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

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/364-77-0x00000000001D0000-0x00000000001EA000-memory.dmp	family_stormkitty
behavioral1/memory/364-78-0x00000000001E4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/364-80-0x00000000001D0000-0x00000000001EA000-memory.dmp	family_stormkitty
behavioral1/memory/364-82-0x00000000001D0000-0x00000000001EA000-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\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
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

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\""	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.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 832 set thread context of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 980 set thread context of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33

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 6 IoCs

pid	Process
832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
1180	powershell.exe
832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
Token: SeDebugPrivilege	1180	powershell.exe
Token: SeDebugPrivilege	364	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 1180	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	27
PID 832 wrote to memory of 1180	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	27
PID 832 wrote to memory of 1180	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	27
PID 832 wrote to memory of 1180	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	27
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1468	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	29
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1824	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	30
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 1724	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	31
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 832 wrote to memory of 980	832	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	32
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33
PID 980 wrote to memory of 364	980	SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe	33

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.Heuristic.HEUR.AGEN.1232158.25080.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:832
- 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:1180
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  2⤵
  PID:1468
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  2⤵
  PID:1824
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  2⤵
  PID:1724
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:980
- - 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:364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/364-82-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/364-80-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/364-77-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/364-75-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/832-54-0x00000000001D0000-0x00000000002B4000-memory.dmp

Filesize
912KB

Download
memory/832-55-0x0000000004260000-0x000000000433C000-memory.dmp

Filesize
880KB

Download
memory/832-56-0x0000000075091000-0x0000000075093000-memory.dmp

Filesize
8KB

Download
memory/832-57-0x0000000004340000-0x00000000043D2000-memory.dmp

Filesize
584KB

Download
memory/980-66-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/980-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/980-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/980-71-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/980-63-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/980-84-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/980-85-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1180-62-0x000000006F2E0000-0x000000006F88B000-memory.dmp

Filesize
5.7MB

Download
memory/1180-61-0x000000006F2E0000-0x000000006F88B000-memory.dmp

Filesize
5.7MB

Download
memory/1180-60-0x000000006F2E0000-0x000000006F88B000-memory.dmp

Filesize
5.7MB

Download