blustealer | fdeafb2bf6cc3d798d2fa099f3619d096f17a57b89172020922c2a63f48d8aeb

General

Target

swift.exe
Size

714KB
MD5

3512514972b6f3d79491a5ded8617788
SHA1

ba6548c7bf1227b05278dc2372a91347d7d100c3
SHA256

fdeafb2bf6cc3d798d2fa099f3619d096f17a57b89172020922c2a63f48d8aeb
SHA512

d638dc0bbd6b81053ed9cd58b7a276801748586a6039371f1a039399e0794a97758011e7bec08bfe7ec5ed25ad229e3d0273cae3b152d37133bb5f9a7b336e18
SSDEEP

12288:a6HZX/QV280RF75ehGBEnuaDDhvJun2zro8b4p00zyIZPzHC2:aUGM80RZ5j8ucFRqQr1b5IVHC2

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 4 IoCs

resource	yara_rule
behavioral1/memory/1732-83-0x0000000000100000-0x000000000011A000-memory.dmp	family_stormkitty
behavioral1/memory/1732-81-0x0000000000114F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1732-80-0x0000000000100000-0x000000000011A000-memory.dmp	family_stormkitty
behavioral1/memory/1732-85-0x0000000000100000-0x000000000011A000-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
16	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1964 set thread context of 1160	1964	swift.exe	34
PID 1160 set thread context of 1732	1160	swift.exe	35

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
1636	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1756	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	1732	AppLaunch.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1964	swift.exe
1964	swift.exe
1160	swift.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1756	1964	swift.exe	30
PID 1964 wrote to memory of 1756	1964	swift.exe	30
PID 1964 wrote to memory of 1756	1964	swift.exe	30
PID 1964 wrote to memory of 1756	1964	swift.exe	30
PID 1964 wrote to memory of 1636	1964	swift.exe	32
PID 1964 wrote to memory of 1636	1964	swift.exe	32
PID 1964 wrote to memory of 1636	1964	swift.exe	32
PID 1964 wrote to memory of 1636	1964	swift.exe	32
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1964 wrote to memory of 1160	1964	swift.exe	34
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35
PID 1160 wrote to memory of 1732	1160	swift.exe	35

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\swift.exe
"C:\Users\Admin\AppData\Local\Temp\swift.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZqJCnirrxQudpN.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZqJCnirrxQudpN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp205F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1636
- C:\Users\Admin\AppData\Local\Temp\swift.exe
  "C:\Users\Admin\AppData\Local\Temp\swift.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1160
- - 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:1732

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

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp205F.tmp

Filesize
1KB

MD5
75a47ece381da3937ee8f3ee8de48698

SHA1
a37c499fb4e69476c8653d6d9540b2acff26c7c9

SHA256
1f893cea8de2fd7d0e33d6ddbf7cc571972a5aacc20c83d650a62ee116d70e40

SHA512
726a74e79224a937fc842953880b5ee0d7356ec8732e6b6f53fea46b3289207efd6771346954122482e66ae292bc3c535ceaf7807073a4e7f5bf3b0d11524e27

Download Submit
memory/1160-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1160-90-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1160-88-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1160-73-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1160-66-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1160-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1160-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1732-83-0x0000000000100000-0x000000000011A000-memory.dmp

Filesize
104KB

Download
memory/1732-80-0x0000000000100000-0x000000000011A000-memory.dmp

Filesize
104KB

Download
memory/1732-85-0x0000000000100000-0x000000000011A000-memory.dmp

Filesize
104KB

Download
memory/1732-78-0x0000000000100000-0x000000000011A000-memory.dmp

Filesize
104KB

Download
memory/1756-87-0x000000006BF30000-0x000000006C4DB000-memory.dmp

Filesize
5.7MB

Download
memory/1756-89-0x000000006BF30000-0x000000006C4DB000-memory.dmp

Filesize
5.7MB

Download
memory/1964-57-0x0000000000A57000-0x0000000000A68000-memory.dmp

Filesize
68KB

Download
memory/1964-75-0x0000000000A57000-0x0000000000A68000-memory.dmp

Filesize
68KB

Download
memory/1964-58-0x0000000000CB0000-0x0000000000CBC000-memory.dmp

Filesize
48KB

Download
memory/1964-54-0x0000000000E50000-0x0000000000F08000-memory.dmp

Filesize
736KB

Download
memory/1964-59-0x0000000008520000-0x000000000859E000-memory.dmp

Filesize
504KB

Download
memory/1964-64-0x0000000004A10000-0x0000000004A38000-memory.dmp

Filesize
160KB

Download
memory/1964-56-0x0000000000630000-0x0000000000648000-memory.dmp

Filesize
96KB

Download
memory/1964-55-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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