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 1 IoCs

resource	yara_rule
behavioral2/memory/3564-153-0x0000000000E20000-0x0000000000E3A000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	swift.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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
47	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 3608	4832	swift.exe	91
PID 3608 set thread context of 3564	3608	swift.exe	92

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
1072	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3896	powershell.exe
3896	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3896	powershell.exe
Token: SeDebugPrivilege	3564	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3608	swift.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 3896	4832	swift.exe	87
PID 4832 wrote to memory of 3896	4832	swift.exe	87
PID 4832 wrote to memory of 3896	4832	swift.exe	87
PID 4832 wrote to memory of 1072	4832	swift.exe	89
PID 4832 wrote to memory of 1072	4832	swift.exe	89
PID 4832 wrote to memory of 1072	4832	swift.exe	89
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 4832 wrote to memory of 3608	4832	swift.exe	91
PID 3608 wrote to memory of 3564	3608	swift.exe	92
PID 3608 wrote to memory of 3564	3608	swift.exe	92
PID 3608 wrote to memory of 3564	3608	swift.exe	92
PID 3608 wrote to memory of 3564	3608	swift.exe	92
PID 3608 wrote to memory of 3564	3608	swift.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4832
- 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:3896
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ENQdnSeSxpLCZe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp48D0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1072
- 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:3608
- - 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:3564

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\tmp48D0.tmp

Filesize
1KB

MD5
a86a9994a0b3e3f8042ecfc2b4b840a4

SHA1
c127fe742849f03c89c6d6284f6bb916a11d1611

SHA256
1942856701b2e33a5849174d0f6047b3d5cfe97f62cd6c2e851ebc44c994a301

SHA512
7a77d47adc4904fadfc26569a4fdf7d0bda7e4b5cdc89ee009bf0c7d9b5f82d1bf8036eaa188860b576593afd41ae3f1bd33e203376371330f8441fc16e8c68b

Download Submit
memory/3564-153-0x0000000000E20000-0x0000000000E3A000-memory.dmp

Filesize
104KB

Download
memory/3608-165-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3608-154-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3608-147-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3608-143-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3896-139-0x0000000000D10000-0x0000000000D46000-memory.dmp

Filesize
216KB

Download
memory/3896-155-0x0000000006A40000-0x0000000006A72000-memory.dmp

Filesize
200KB

Download
memory/3896-164-0x00000000070C0000-0x00000000070C8000-memory.dmp

Filesize
32KB

Download
memory/3896-145-0x0000000004AD0000-0x0000000004AF2000-memory.dmp

Filesize
136KB

Download
memory/3896-146-0x0000000004CF0000-0x0000000004D56000-memory.dmp

Filesize
408KB

Download
memory/3896-148-0x0000000004E10000-0x0000000004E76000-memory.dmp

Filesize
408KB

Download
memory/3896-151-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

Filesize
120KB

Download
memory/3896-163-0x00000000070E0000-0x00000000070FA000-memory.dmp

Filesize
104KB

Download
memory/3896-162-0x0000000006FD0000-0x0000000006FDE000-memory.dmp

Filesize
56KB

Download
memory/3896-161-0x0000000007020000-0x00000000070B6000-memory.dmp

Filesize
600KB

Download
memory/3896-141-0x0000000004F60000-0x0000000005588000-memory.dmp

Filesize
6.2MB

Download
memory/3896-156-0x0000000071740000-0x000000007178C000-memory.dmp

Filesize
304KB

Download
memory/3896-157-0x0000000006A00000-0x0000000006A1E000-memory.dmp

Filesize
120KB

Download
memory/3896-158-0x00000000073E0000-0x0000000007A5A000-memory.dmp

Filesize
6.5MB

Download
memory/3896-159-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

Filesize
104KB

Download
memory/3896-160-0x0000000006E10000-0x0000000006E1A000-memory.dmp

Filesize
40KB

Download
memory/4832-134-0x0000000004C00000-0x0000000004C92000-memory.dmp

Filesize
584KB

Download
memory/4832-135-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

Filesize
40KB

Download
memory/4832-136-0x00000000084E0000-0x000000000857C000-memory.dmp

Filesize
624KB

Download
memory/4832-132-0x0000000000140000-0x0000000000202000-memory.dmp

Filesize
776KB

Download
memory/4832-133-0x0000000005110000-0x00000000056B4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads