blustealer | 9e67169785560714650f46f52a0a04d3520d07fc3d431f6f537897bda3334403

General

Target

hesaphareketi-01.exe
Size

238KB
MD5

b26acc800dd682972c7d6369df815636
SHA1

70bcaf8b0f4b74816365cf87df00360325a33d58
SHA256

9e67169785560714650f46f52a0a04d3520d07fc3d431f6f537897bda3334403
SHA512

c96a205e421d6f18393c2d9aca67804c5cf21cd5e1378bccd575796b1172ba044b414b38f169bf24564cf5815d4689884e8cf29a23f322ea5279e7742aaa6731

Score

10^/10

blustealer stormkitty collection persistence 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/3828-150-0x00000000005B0000-0x00000000005CA000-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	hesaphareketi-01.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wsxeud = "\"C:\\Users\\Admin\\AppData\\Roaming\\Thrzrgns\\Wsxeud.exe\""	hesaphareketi-01.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
20	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4056 set thread context of 1764	4056	hesaphareketi-01.exe	85
PID 1764 set thread context of 3828	1764	InstallUtil.exe	86

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 8 IoCs

pid	Process
2876	powershell.exe
2876	powershell.exe
4056	hesaphareketi-01.exe
4056	hesaphareketi-01.exe
4056	hesaphareketi-01.exe
4056	hesaphareketi-01.exe
4056	hesaphareketi-01.exe
4056	hesaphareketi-01.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1764	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4056	hesaphareketi-01.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	3828	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1764	InstallUtil.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 2876	4056	hesaphareketi-01.exe	82
PID 4056 wrote to memory of 2876	4056	hesaphareketi-01.exe	82
PID 4056 wrote to memory of 2876	4056	hesaphareketi-01.exe	82
PID 4056 wrote to memory of 4012	4056	hesaphareketi-01.exe	84
PID 4056 wrote to memory of 4012	4056	hesaphareketi-01.exe	84
PID 4056 wrote to memory of 4012	4056	hesaphareketi-01.exe	84
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 4056 wrote to memory of 1764	4056	hesaphareketi-01.exe	85
PID 1764 wrote to memory of 3828	1764	InstallUtil.exe	86
PID 1764 wrote to memory of 3828	1764	InstallUtil.exe	86
PID 1764 wrote to memory of 3828	1764	InstallUtil.exe	86
PID 1764 wrote to memory of 3828	1764	InstallUtil.exe	86
PID 1764 wrote to memory of 3828	1764	InstallUtil.exe	86

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\hesaphareketi-01.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:4012
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1764
- - 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:3828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

memory/1764-152-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1764-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1764-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1764-144-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2876-136-0x0000000004D00000-0x0000000005328000-memory.dmp

Filesize
6.2MB

Download
memory/2876-135-0x0000000004690000-0x00000000046C6000-memory.dmp

Filesize
216KB

Download
memory/2876-139-0x0000000005C50000-0x0000000005C6E000-memory.dmp

Filesize
120KB

Download
memory/2876-140-0x00000000072A0000-0x000000000791A000-memory.dmp

Filesize
6.5MB

Download
memory/2876-141-0x0000000006150000-0x000000000616A000-memory.dmp

Filesize
104KB

Download
memory/2876-137-0x0000000005560000-0x00000000055C6000-memory.dmp

Filesize
408KB

Download
memory/2876-138-0x0000000005640000-0x00000000056A6000-memory.dmp

Filesize
408KB

Download
memory/3828-150-0x00000000005B0000-0x00000000005CA000-memory.dmp

Filesize
104KB

Download
memory/3828-153-0x00000000053B0000-0x000000000544C000-memory.dmp

Filesize
624KB

Download
memory/4056-132-0x0000000000F00000-0x0000000000F40000-memory.dmp

Filesize
256KB

Download
memory/4056-133-0x0000000006380000-0x00000000063A2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads