blustealer | 629d37e0a390d5e32a6896c94cf2751e773a3031302f95ceac300af47b6a3f44

General

Target

swift.exe
Size

748KB
MD5

540985315d9b263a1dea5285e2b00782
SHA1

f8765bbbdce220e3090cdac3a2e915a73b8d4393
SHA256

629d37e0a390d5e32a6896c94cf2751e773a3031302f95ceac300af47b6a3f44
SHA512

d8c9cbe2c81027da34c8892965dc8b4d30f00da23c845ce835d35c4c746e26e6910fad497b64cda77f53145c518e589104578989bab88a609e8fd15cbb26e5c8
SSDEEP

12288:n+ZV2iNanwHSHe+IYPMutQuPh2bhMuLD9F6hQLRhpn6QgrAvR+Jy5dxuc5fvN6zI:ng18naPYhe2uX99X6Q1vkcv3czWsDc

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/828-79-0x00000000000E0000-0x00000000000FA000-memory.dmp	family_stormkitty
behavioral1/memory/828-80-0x00000000000F4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/828-82-0x00000000000E0000-0x00000000000FA000-memory.dmp	family_stormkitty
behavioral1/memory/828-84-0x00000000000E0000-0x00000000000FA000-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 1088 set thread context of 1364	1088	swift.exe	32
PID 1364 set thread context of 828	1364	swift.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
1996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2040	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	powershell.exe
Token: SeDebugPrivilege	828	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1364	swift.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 2040	1088	swift.exe	28
PID 1088 wrote to memory of 2040	1088	swift.exe	28
PID 1088 wrote to memory of 2040	1088	swift.exe	28
PID 1088 wrote to memory of 2040	1088	swift.exe	28
PID 1088 wrote to memory of 1996	1088	swift.exe	30
PID 1088 wrote to memory of 1996	1088	swift.exe	30
PID 1088 wrote to memory of 1996	1088	swift.exe	30
PID 1088 wrote to memory of 1996	1088	swift.exe	30
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1088 wrote to memory of 1364	1088	swift.exe	32
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33
PID 1364 wrote to memory of 828	1364	swift.exe	33

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 WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ENQdnSeSxpLCZe.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ENQdnSeSxpLCZe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD72E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1996
- 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:1364
- - 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:828

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD72E.tmp

Filesize
1KB

MD5
011d2b6aacaf7bef080a4d50ab1bc806

SHA1
6b99995331f7f7362bf762b6398fa6ac71410af8

SHA256
ab41a2242efc647f9af155abcfea17c8203e0daa7dc83d5d531b0c4c31c13f65

SHA512
33685d6a3466b571f7c547505191c074509e8a8b4557712cc3d457bb031a8a2d678db29324aadd8571410226a35e76d8479c44a19e885ae5f724af87f2c2849e

Download Submit
memory/828-82-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/828-79-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/828-77-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/828-84-0x00000000000E0000-0x00000000000FA000-memory.dmp

Filesize
104KB

Download
memory/1088-57-0x00000000003B0000-0x00000000003BC000-memory.dmp

Filesize
48KB

Download
memory/1088-58-0x0000000005C40000-0x0000000005CC8000-memory.dmp

Filesize
544KB

Download
memory/1088-63-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

Filesize
24KB

Download
memory/1088-64-0x0000000004580000-0x00000000045BE000-memory.dmp

Filesize
248KB

Download
memory/1088-56-0x00000000003D0000-0x00000000003F2000-memory.dmp

Filesize
136KB

Download
memory/1088-55-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

Download
memory/1088-54-0x0000000001000000-0x00000000010C2000-memory.dmp

Filesize
776KB

Download
memory/1364-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1364-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1364-73-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1364-66-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1364-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1364-87-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1364-89-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2040-86-0x000000006EC50000-0x000000006F1FB000-memory.dmp

Filesize
5.7MB

Download
memory/2040-88-0x000000006EC50000-0x000000006F1FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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