blustealer | 2d127dea1f6345c2027dbf93c109f7d7758f5bb396c9d47caa593a5039c05778

General

Target

SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe
Size

598KB
MD5

310752f7cbe9fbec00f7107d1c669813
SHA1

0a0388a795fb88624fdeb39fe9abef09f5cf609d
SHA256

2d127dea1f6345c2027dbf93c109f7d7758f5bb396c9d47caa593a5039c05778
SHA512

7c7cbb7edd5ba152be1ff64940fa05dfab330e7c739102dadc0df1e2028e823a69b1b3c37aa463cfb7fe9e9ff0ce7218c2c48e60ecc50d36873d06b00eeb9a04

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 1 IoCs

resource	yara_rule
behavioral2/memory/1628-150-0x0000000000770000-0x000000000078A000-memory.dmp	family_stormkitty

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\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 2408 set thread context of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 4492 set thread context of 1628	4492	InstallUtil.exe	80

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 4 IoCs

pid	Process
4664	powershell.exe
4664	powershell.exe
2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe
2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe
Token: SeDebugPrivilege	4664	powershell.exe
Token: SeDebugPrivilege	1628	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4492	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 4664	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	77
PID 2408 wrote to memory of 4664	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	77
PID 2408 wrote to memory of 4664	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	77
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 2408 wrote to memory of 4492	2408	SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe	79
PID 4492 wrote to memory of 1628	4492	InstallUtil.exe	80
PID 4492 wrote to memory of 1628	4492	InstallUtil.exe	80
PID 4492 wrote to memory of 1628	4492	InstallUtil.exe	80
PID 4492 wrote to memory of 1628	4492	InstallUtil.exe	80
PID 4492 wrote to memory of 1628	4492	InstallUtil.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILMamut.6339.18594.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4492
- - 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:1628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1628-151-0x0000000005760000-0x00000000057FC000-memory.dmp

Filesize
624KB

Download
memory/1628-150-0x0000000000770000-0x000000000078A000-memory.dmp

Filesize
104KB

Download
memory/2408-133-0x00000000051B0000-0x00000000051D2000-memory.dmp

Filesize
136KB

Download
memory/2408-132-0x00000000005E0000-0x000000000067A000-memory.dmp

Filesize
616KB

Download
memory/4492-152-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4492-148-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4492-145-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4492-143-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4664-136-0x00000000054D0000-0x0000000005AF8000-memory.dmp

Filesize
6.2MB

Download
memory/4664-141-0x0000000006750000-0x000000000676A000-memory.dmp

Filesize
104KB

Download
memory/4664-140-0x0000000007AA0000-0x000000000811A000-memory.dmp

Filesize
6.5MB

Download
memory/4664-139-0x0000000006250000-0x000000000626E000-memory.dmp

Filesize
120KB

Download
memory/4664-138-0x0000000005BE0000-0x0000000005C46000-memory.dmp

Filesize
408KB

Download
memory/4664-137-0x0000000005B70000-0x0000000005BD6000-memory.dmp

Filesize
408KB

Download
memory/4664-135-0x0000000002C80000-0x0000000002CB6000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads