blustealer | 755de0017346d362f97a588336b88adc8d078bb699a2395c2957daa26207c16b

General

Target

SWIFT_ IMG 20220905-000022.exe
Size

646KB
MD5

4179939afb1db82fc27df59af2bd11ae
SHA1

dbf869f15934922f0eab9fee87341ef2387e02ec
SHA256

755de0017346d362f97a588336b88adc8d078bb699a2395c2957daa26207c16b
SHA512

4f9f422435ef0daf8b30987569ed03968dfe76926c8da33da4a4b6cb9242b41523058764271c123a6117f090c2b67489b2ee2cfc564a6d8b6b7952f986eccd2c
SSDEEP

12288:kzE+8K2iNEF75euLU//hykf0VVDYSNGlFuomH4oY3Cd0GCiTHcBXXt:tK16Z5foyA0VVDYSNyFuVH91dDG

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/1708-74-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1708-75-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1708-77-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1708-79-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\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 1268 set thread context of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 812 set thread context of 1708	812	SWIFT_ IMG 20220905-000022.exe	28

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1268	SWIFT_ IMG 20220905-000022.exe
1268	SWIFT_ IMG 20220905-000022.exe
1268	SWIFT_ IMG 20220905-000022.exe
1268	SWIFT_ IMG 20220905-000022.exe
1268	SWIFT_ IMG 20220905-000022.exe
1268	SWIFT_ IMG 20220905-000022.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
812	SWIFT_ IMG 20220905-000022.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1268	SWIFT_ IMG 20220905-000022.exe
Token: SeDebugPrivilege	1708	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
812	SWIFT_ IMG 20220905-000022.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 1268 wrote to memory of 812	1268	SWIFT_ IMG 20220905-000022.exe	27
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28
PID 812 wrote to memory of 1708	812	SWIFT_ IMG 20220905-000022.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SWIFT_ IMG 20220905-000022.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT_ IMG 20220905-000022.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\SWIFT_ IMG 20220905-000022.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT_ IMG 20220905-000022.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:812
- - 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:1708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

memory/812-63-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/812-82-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/812-81-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/812-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/812-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/812-60-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/812-61-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1268-58-0x0000000005BD0000-0x0000000005C52000-memory.dmp

Filesize
520KB

Download
memory/1268-59-0x0000000000B00000-0x0000000000B2C000-memory.dmp

Filesize
176KB

Download
memory/1268-54-0x0000000000D90000-0x0000000000E38000-memory.dmp

Filesize
672KB

Download
memory/1268-57-0x00000000005B0000-0x00000000005BC000-memory.dmp

Filesize
48KB

Download
memory/1268-56-0x0000000000600000-0x0000000000618000-memory.dmp

Filesize
96KB

Download
memory/1268-55-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/1708-72-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1708-74-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1708-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1708-79-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download

Analysis

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