blustealer | 812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af

General

Target

812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
Size

763KB
MD5

99a852e331165dac3b18906d680ddde1
SHA1

65f711d7a0c894caa4fcca0001ebe903bc479d35
SHA256

812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af
SHA512

d72b76890b6e00e900ddd33cf553512f92a212c59fcba3ac92887a162d0355e3f89f5649c514d492146801a8370237be3669fd2de892fe10a3219050a23c3652

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/1340-143-0x00000000003C0000-0x00000000003DA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\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
57	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2244 set thread context of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 3052 set thread context of 1340	3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	89

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 4 IoCs

pid	Process
2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
Token: SeDebugPrivilege	1340	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 2244 wrote to memory of 3052	2244	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	88
PID 3052 wrote to memory of 1340	3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	89
PID 3052 wrote to memory of 1340	3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	89
PID 3052 wrote to memory of 1340	3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	89
PID 3052 wrote to memory of 1340	3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	89
PID 3052 wrote to memory of 1340	3052	812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
"C:\Users\Admin\AppData\Local\Temp\812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe
  "C:\Users\Admin\AppData\Local\Temp\812e860ce5f169fed3c366dc9781e342e6c4da50e997c051e3788621ef71b6af.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3052
- - 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:1340

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/1340-143-0x00000000003C0000-0x00000000003DA000-memory.dmp

Filesize
104KB

Download
memory/2244-130-0x0000000000B90000-0x0000000000C56000-memory.dmp

Filesize
792KB

Download
memory/2244-131-0x0000000005B80000-0x0000000006124000-memory.dmp

Filesize
5.6MB

Download
memory/2244-132-0x0000000005670000-0x0000000005702000-memory.dmp

Filesize
584KB

Download
memory/2244-133-0x0000000005B30000-0x0000000005B3A000-memory.dmp

Filesize
40KB

Download
memory/2244-134-0x000000000BA70000-0x000000000BB0C000-memory.dmp

Filesize
624KB

Download
memory/2244-135-0x000000000BDB0000-0x000000000BE16000-memory.dmp

Filesize
408KB

Download
memory/3052-137-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3052-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3052-144-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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