blustealer | 93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d

General

Target

93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe
Size

152KB
MD5

3218a6b674d56aff678ef803ac3b7b57
SHA1

180c1091753861286f391d1b4cf5d4c80333e762
SHA256

93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d
SHA512

198e0c0a03761301248511bac393a2722b05bf32f6351b2baea9f363f67226c5981ed39cfb091daa77aed862b973bd11e35a0a4cde1e74dca8c865cde0141618

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/3416-141-0x0000000000A10000-0x0000000000A2A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\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
26	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1748 set thread context of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 2796 set thread context of 3416	2796	cvtres.exe	88

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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3416	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2796	cvtres.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 1748 wrote to memory of 2796	1748	93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe	86
PID 2796 wrote to memory of 3416	2796	cvtres.exe	88
PID 2796 wrote to memory of 3416	2796	cvtres.exe	88
PID 2796 wrote to memory of 3416	2796	cvtres.exe	88
PID 2796 wrote to memory of 3416	2796	cvtres.exe	88
PID 2796 wrote to memory of 3416	2796	cvtres.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe
"C:\Users\Admin\AppData\Local\Temp\93099d7605c84c5fcbd45ec0e6b4210c20a4ac7194680de845116b9af0286d2d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2796
- - 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:3416

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1748-132-0x00000000006C0000-0x00000000006E8000-memory.dmp

Filesize
160KB

Download
memory/2796-134-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2796-136-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2796-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2796-143-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3416-141-0x0000000000A10000-0x0000000000A2A000-memory.dmp

Filesize
104KB

Download
memory/3416-142-0x0000000004E90000-0x0000000004EF6000-memory.dmp

Filesize
408KB

Download
memory/3416-144-0x0000000005840000-0x00000000058DC000-memory.dmp

Filesize
624KB

Download

Analysis

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