blustealer | a01a796237b902283c1dedf65170d1bc27c295c5862c5f57d49851c81930e960

Analysis

max time kernel
105s
max time network
102s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 05:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe
Size

512KB
MD5

d6d2eab2c47696c506e2c7fb2641e70c
SHA1

a72a143ea22c8ecce60ad941075cf10d6b75db54
SHA256

a01a796237b902283c1dedf65170d1bc27c295c5862c5f57d49851c81930e960
SHA512

cb4bdfb7bba514d7e28d8337a3b94c271741e3b5429f2d1ab3d12854f3674241642d648050c57bc931cbd3c6b89ae03b6f5f5a242a3c3b9eb12ef9d37ee6ade6
SSDEEP

12288:aBRpMQ140VDCjnScvA60rtrhOm4jA0khG8o9S99jq:OUQ1pVejmplIjA0kho9K9j

Score

10^/10

blustealer stormkitty collection 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/820-79-0x00000000000E4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/820-78-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/820-81-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/820-83-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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 1336 set thread context of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 576 set thread context of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.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

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1804	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe
1868	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe
Token: SeDebugPrivilege	1868	powershell.exe
Token: SeDebugPrivilege	820	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 1868	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	27
PID 1336 wrote to memory of 1868	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	27
PID 1336 wrote to memory of 1868	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	27
PID 1336 wrote to memory of 1868	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	27
PID 1336 wrote to memory of 1804	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	29
PID 1336 wrote to memory of 1804	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	29
PID 1336 wrote to memory of 1804	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	29
PID 1336 wrote to memory of 1804	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	29
PID 1336 wrote to memory of 1768	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	31
PID 1336 wrote to memory of 1768	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	31
PID 1336 wrote to memory of 1768	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	31
PID 1336 wrote to memory of 1768	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	31
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 1336 wrote to memory of 576	1336	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	32
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33
PID 576 wrote to memory of 820	576	SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pSTUfXtcQIHKE.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1868
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pSTUfXtcQIHKE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC256.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1804
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe"
  2⤵
  PID:1768
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32165.32177.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:576
- - 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:820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC256.tmp

Filesize
1KB

MD5
71569ecaf6da2035e10794b36e97e551

SHA1
134457191cf8e55a29cb703b7bb7d353b62a5cfa

SHA256
e51f6a360941e06bbf4db4f60be9aa5d4cc4b2eb7398c961d33539ab2aee768f

SHA512
adf325e1fd62641af1298893b40f612033bae87416c87447ab3dc7110bcc38363434eade6f501e4b78ab7124d6956735351b32dc0bc7715c07d69e0311c83f34

Download Submit
memory/576-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/576-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/576-86-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/576-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/576-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/576-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/576-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/820-81-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/820-83-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/820-78-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/820-76-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1336-57-0x0000000000700000-0x000000000070E000-memory.dmp

Filesize
56KB

Download
memory/1336-58-0x0000000005180000-0x00000000051E2000-memory.dmp

Filesize
392KB

Download
memory/1336-54-0x0000000000E90000-0x0000000000F10000-memory.dmp

Filesize
512KB

Download
memory/1336-63-0x0000000004C90000-0x0000000004CBC000-memory.dmp

Filesize
176KB

Download
memory/1336-56-0x00000000006F0000-0x0000000000706000-memory.dmp

Filesize
88KB

Download
memory/1336-55-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

Download
memory/1868-85-0x000000006E3A0000-0x000000006E94B000-memory.dmp

Filesize
5.7MB

Download
memory/1868-87-0x000000006E3A0000-0x000000006E94B000-memory.dmp

Filesize
5.7MB

Download