blustealer | 3a0d8ce7111fd0d66caa1d06cb554a6e953e0f8d0b9828b53d5cc8318366e111

General

Target

SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe
Size

777KB
MD5

ce4b52b35918a6aaae436aa29b5c9c0f
SHA1

fe4a06c24070a66782678c487db865fde69dc391
SHA256

3a0d8ce7111fd0d66caa1d06cb554a6e953e0f8d0b9828b53d5cc8318366e111
SHA512

4782192f68234e456cddbdb2b64a0300bd1c2ba1064fb222e977c10e3896555895b355b61ec5f1982207d8b23df4c6ceccc2d14d006712433f770a9669d2dbfa
SSDEEP

12288:6U4jXCnPKrDSaLvb2tRSCfJgMH5BxAaQSRFqwwgOmA:61jXMPKrDbDoRSCfGOPvlRhwkA

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5374342837:AAHF-c1HAIvNCdF89VuEdNggsL2YBlpgkSE/sendMessage?chat_id=2133303215

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/1652-75-0x00000000000E0000-0x00000000000FA000-memory.dmp	family_stormkitty
behavioral1/memory/1652-76-0x00000000000F4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1652-78-0x00000000000E0000-0x00000000000FA000-memory.dmp	family_stormkitty
behavioral1/memory/1652-80-0x00000000000E0000-0x00000000000FA000-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

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 1756 set thread context of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1992 set thread context of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1756 wrote to memory of 1992	1756	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	27
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe	28
PID 1992 wrote to memory of 1652	1992	SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.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.Trojan.MSIL.Basic.5.Gen.21167.21247.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1992
- - 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:1652

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

Loading Replay Monitor...

Downloads

memory/1652-73-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/1652-80-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/1652-78-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/1652-75-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/1756-55-0x0000000076871000-0x0000000076873000-memory.dmp

Filesize
8KB

Download
memory/1756-56-0x0000000000880000-0x0000000000896000-memory.dmp

Filesize
88KB

Download
memory/1756-57-0x0000000000890000-0x000000000089C000-memory.dmp

Filesize
48KB

Download
memory/1756-58-0x0000000007DD0000-0x0000000007E4E000-memory.dmp

Filesize
504KB

Download
memory/1756-59-0x0000000000DE0000-0x0000000000E08000-memory.dmp

Filesize
160KB

Download
memory/1756-54-0x0000000001160000-0x0000000001228000-memory.dmp

Filesize
800KB

Download
memory/1992-63-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-72-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-61-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-60-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-82-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing