blustealer | 97dd5625186d8b272fcffd07098106fdebc7792a18a019cb310ff81f0d7e0a21

General

Target

SecuriteInfo.com.Win32.PWSX-gen.14959.exe
Size

743KB
MD5

9700401bc6c92451ec9a185a7a042cbd
SHA1

f666e7947886353448e6d09798f36f1979a1cd91
SHA256

97dd5625186d8b272fcffd07098106fdebc7792a18a019cb310ff81f0d7e0a21
SHA512

27c51fb4cfca469c84429f3f0f45e7252a6e6f139318645bcea8ac245607beab0c3d5c645f969bd68fc29d2a7f2449c393a9769c88671d946ff6ca3d62c776ed
SSDEEP

12288:uQuq/PQ5IWui9CZzPKFgBGq0vAf2xyttXNsRb06N3L9LG:RCxui9CZzPKFc7UAdqRb33L9L

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5617443580:AAFX8iYrXMCASkw95O815OVGuLWLdSgh8Qo/sendMessage?chat_id=5334267822

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/3180-159-0x0000000000E00000-0x0000000000E1A000-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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.Win32.PWSX-gen.14959.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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
40	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4588 set thread context of 3180	4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	96

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
372	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
608	powershell.exe
608	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe
Token: SeDebugPrivilege	608	powershell.exe
Token: SeDebugPrivilege	3180	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 608	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	91
PID 4800 wrote to memory of 608	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	91
PID 4800 wrote to memory of 608	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	91
PID 4800 wrote to memory of 372	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	93
PID 4800 wrote to memory of 372	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	93
PID 4800 wrote to memory of 372	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	93
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4800 wrote to memory of 4588	4800	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	95
PID 4588 wrote to memory of 3180	4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	96
PID 4588 wrote to memory of 3180	4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	96
PID 4588 wrote to memory of 3180	4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	96
PID 4588 wrote to memory of 3180	4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	96
PID 4588 wrote to memory of 3180	4588	SecuriteInfo.com.Win32.PWSX-gen.14959.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.14959.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.14959.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iweHVzHG.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:608
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iweHVzHG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1335.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:372
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.14959.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.14959.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4588
- - 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:3180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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

C:\Users\Admin\AppData\Local\Temp\tmp1335.tmp

Filesize
1KB

MD5
12cec501d5e6012d89175aa41353c95a

SHA1
9c8c6c6a36e4acfc4e9666ad5859562c986714b3

SHA256
3590f32df5d5fa15d9f484fc1376597be0b48989571299059ac6797e9e7c8efc

SHA512
322163fe401eabcc6898ef4af8aad0bf4357b651d49d63864d9edac15ad5613909451ff5d6a91b6a67593f31864b3cc53b292f79b88b15e466f647844586f9a6

Download Submit
memory/608-147-0x00000000051E0000-0x0000000005202000-memory.dmp

Filesize
136KB

Download
memory/608-164-0x00000000077D0000-0x00000000077D8000-memory.dmp

Filesize
32KB

Download
memory/608-163-0x00000000077F0000-0x000000000780A000-memory.dmp

Filesize
104KB

Download
memory/608-152-0x00000000061A0000-0x00000000061BE000-memory.dmp

Filesize
120KB

Download
memory/608-140-0x0000000002880000-0x00000000028B6000-memory.dmp

Filesize
216KB

Download
memory/608-162-0x00000000076E0000-0x00000000076EE000-memory.dmp

Filesize
56KB

Download
memory/608-161-0x0000000007730000-0x00000000077C6000-memory.dmp

Filesize
600KB

Download
memory/608-142-0x0000000005500000-0x0000000005B28000-memory.dmp

Filesize
6.2MB

Download
memory/608-160-0x0000000007520000-0x000000000752A000-memory.dmp

Filesize
40KB

Download
memory/608-157-0x00000000074B0000-0x00000000074CA000-memory.dmp

Filesize
104KB

Download
memory/608-153-0x0000000007360000-0x0000000007392000-memory.dmp

Filesize
200KB

Download
memory/608-156-0x0000000007B10000-0x000000000818A000-memory.dmp

Filesize
6.5MB

Download
memory/608-149-0x0000000005380000-0x00000000053E6000-memory.dmp

Filesize
408KB

Download
memory/608-155-0x0000000007320000-0x000000000733E000-memory.dmp

Filesize
120KB

Download
memory/608-154-0x0000000070A60000-0x0000000070AAC000-memory.dmp

Filesize
304KB

Download
memory/3180-159-0x0000000000E00000-0x0000000000E1A000-memory.dmp

Filesize
104KB

Download
memory/4588-144-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4588-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4588-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4588-165-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4800-132-0x0000000000E20000-0x0000000000EDE000-memory.dmp

Filesize
760KB

Download
memory/4800-136-0x00000000082B0000-0x000000000834C000-memory.dmp

Filesize
624KB

Download
memory/4800-134-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/4800-133-0x0000000005DE0000-0x0000000006384000-memory.dmp

Filesize
5.6MB

Download
memory/4800-135-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/4800-137-0x00000000018C0000-0x0000000001926000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads