blustealer | 72f5582cc2f5a103307f8af4745d621c226dfb7940d33d18e8998b4ad1087373

General

Target

hesaphareketi-01.exe
Size

33KB
MD5

d6870407aa950cb957d5953ca8f369f6
SHA1

b4b01dbcd3ff4c93b5bed2caca65ae5161f8da4f
SHA256

72f5582cc2f5a103307f8af4745d621c226dfb7940d33d18e8998b4ad1087373
SHA512

6cd9cd4873f1c0fb4091bc4ab5b6c1f2c66490adc7fb94a763f060e9ba91b624ea175ce340fcbfd85f8ccb1f4869bd2093f02e4e210e926af28d499a7a9fdfdf
SSDEEP

384:C+6mGkLVeSK3rBXnXOEGLkgt5JFV7XGddMKJKVGxovRZhYzQTBHCZJ5H1A:C+dvK3Zn+vkzzxo3TBi3vA

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5732817033:AAFBYIIZmJ7NuvVwD7WRcbV9qwcOqT7RpwM/sendMessage?chat_id=1638137774

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/2236-150-0x0000000000D60000-0x0000000000D7A000-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-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nsnldvaq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Xmaxswoucmv\\Nsnldvaq.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
31	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4760 set thread context of 2864	4760	hesaphareketi-01.exe	91
PID 2864 set thread context of 2236	2864	hesaphareketi-01.exe	93

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 2 IoCs

pid	Process
2180	powershell.exe
2180	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2864	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4760	hesaphareketi-01.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeDebugPrivilege	2236	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2864	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 2180	4760	hesaphareketi-01.exe	89
PID 4760 wrote to memory of 2180	4760	hesaphareketi-01.exe	89
PID 4760 wrote to memory of 2180	4760	hesaphareketi-01.exe	89
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 4760 wrote to memory of 2864	4760	hesaphareketi-01.exe	91
PID 2864 wrote to memory of 2236	2864	hesaphareketi-01.exe	93
PID 2864 wrote to memory of 2236	2864	hesaphareketi-01.exe	93
PID 2864 wrote to memory of 2236	2864	hesaphareketi-01.exe	93
PID 2864 wrote to memory of 2236	2864	hesaphareketi-01.exe	93
PID 2864 wrote to memory of 2236	2864	hesaphareketi-01.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2180
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2864
- - 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:2236

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/2180-140-0x0000000007D70000-0x00000000083EA000-memory.dmp

Filesize
6.5MB

Download
memory/2180-135-0x0000000003170000-0x00000000031A6000-memory.dmp

Filesize
216KB

Download
memory/2180-136-0x00000000058A0000-0x0000000005EC8000-memory.dmp

Filesize
6.2MB

Download
memory/2180-137-0x0000000005F70000-0x0000000005FD6000-memory.dmp

Filesize
408KB

Download
memory/2180-138-0x0000000006050000-0x00000000060B6000-memory.dmp

Filesize
408KB

Download
memory/2180-139-0x0000000006730000-0x000000000674E000-memory.dmp

Filesize
120KB

Download
memory/2180-141-0x0000000006C30000-0x0000000006C4A000-memory.dmp

Filesize
104KB

Download
memory/2236-151-0x0000000005D30000-0x0000000005DCC000-memory.dmp

Filesize
624KB

Download
memory/2236-150-0x0000000000D60000-0x0000000000D7A000-memory.dmp

Filesize
104KB

Download
memory/2864-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2864-148-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2864-143-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2864-152-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4760-132-0x00000000004E0000-0x00000000004EE000-memory.dmp

Filesize
56KB

Download
memory/4760-133-0x0000000006C30000-0x0000000006C52000-memory.dmp

Filesize
136KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads