blustealer | 6899dd99687066cc8f69608b5a8dfbc513609eb6232600133ebd23907fced8bc

General

Target

swift.exe
Size

845KB
MD5

30044dde3d49f05feb2da0947e8e6146
SHA1

679429fbaab7148392d7c5c332f668aeb8a77aaf
SHA256

6899dd99687066cc8f69608b5a8dfbc513609eb6232600133ebd23907fced8bc
SHA512

bf1dd6f9cabae31489da9ed746a556aa4389aa01a9e715f2eb0d8242714f6863ab42e8585aa25450101f37982ce7ea6f4dede339401b3d8eaf2dee7ac4b90e95
SSDEEP

24576:U3rnaj5LpegjaQzlfx/yxfFFZNYgXWsDcWI:mw5LpDDlpaxfHYO/D

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/1520-79-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1520-80-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1520-82-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1520-84-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2591564548-2301609547-1748242483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2591564548-2301609547-1748242483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2591564548-2301609547-1748242483-1000\Software\Microsoft\Office\15.0\Outlook\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 624 set thread context of 1804	624	swift.exe	31
PID 1804 set thread context of 1520	1804	swift.exe	32

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
852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
952	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	952	powershell.exe
Token: SeDebugPrivilege	1520	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1804	swift.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 952	624	swift.exe	27
PID 624 wrote to memory of 952	624	swift.exe	27
PID 624 wrote to memory of 952	624	swift.exe	27
PID 624 wrote to memory of 952	624	swift.exe	27
PID 624 wrote to memory of 852	624	swift.exe	29
PID 624 wrote to memory of 852	624	swift.exe	29
PID 624 wrote to memory of 852	624	swift.exe	29
PID 624 wrote to memory of 852	624	swift.exe	29
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 624 wrote to memory of 1804	624	swift.exe	31
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32
PID 1804 wrote to memory of 1520	1804	swift.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2591564548-2301609547-1748242483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2591564548-2301609547-1748242483-1000\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:624
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qWTIsUzw.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:952
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qWTIsUzw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF9F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:852
- 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:1804
- - 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:1520

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\tmpCF9F.tmp

Filesize
1KB

MD5
6b3231617243490fe31b9049b9c1ff9d

SHA1
e2d4783a52af33d1d2c844a93439e8329be5c42a

SHA256
0be1f3a3039feae17eed8a6568116bdc65fcd3d5072ae86700e701c0f8ed7b08

SHA512
44ba74b8a9c35868ca3cb1861d379cd16727f7f5d55909a35716a02e4430edee32e33be1894176b55e47881882d3ed9dd8f1cb03363e714db804422017873b38

Download Submit
memory/624-54-0x00000000013E0000-0x00000000014BA000-memory.dmp

Filesize
872KB

Download
memory/624-55-0x0000000075441000-0x0000000075443000-memory.dmp

Filesize
8KB

Download
memory/624-56-0x0000000000430000-0x0000000000452000-memory.dmp

Filesize
136KB

Download
memory/624-57-0x00000000006E0000-0x00000000006EC000-memory.dmp

Filesize
48KB

Download
memory/624-58-0x0000000008070000-0x00000000080F0000-memory.dmp

Filesize
512KB

Download
memory/624-63-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/624-64-0x00000000048F0000-0x0000000004926000-memory.dmp

Filesize
216KB

Download
memory/952-88-0x000000006EAA0000-0x000000006F04B000-memory.dmp

Filesize
5.7MB

Download
memory/952-86-0x000000006EAA0000-0x000000006F04B000-memory.dmp

Filesize
5.7MB

Download
memory/1520-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1520-79-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1520-82-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1520-84-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1804-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1804-73-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1804-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1804-87-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1804-66-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1804-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1804-89-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads