blustealer | 72f830e51eb1757b6f3a32a3d97e6e74975cbb87d0b719a8a985e3949a6e645b

General

Target

hesaphareketi-01.exe
Size

21KB
MD5

5cb067a6198acceabf2b866d832451ca
SHA1

a3cd2c82a3d0cd4e4c69f7541c49795c36376c4f
SHA256

72f830e51eb1757b6f3a32a3d97e6e74975cbb87d0b719a8a985e3949a6e645b
SHA512

98d5bb09ec4d46dc27d92d1cce06e1c8bb91341324d513212632eb19b5508cd17243196e31f62adebd89162eb7c2befb571dab9edb3b7d381c7f2ab613baa7e8
SSDEEP

384:ZX30HvRyAi34bh2NWWF0J8HTQS0qPnW900eAaX6SV0xYWZjANN2xeuP:B3rAO4bUNWWF0J8HTQS0qPnW900eAaX+

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/948-150-0x0000000000F40000-0x0000000000F5A000-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-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mmpbcvtr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Oozwbdst\\Mmpbcvtr.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
17	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 2728	2220	hesaphareketi-01.exe	90
PID 2728 set thread context of 948	2728	hesaphareketi-01.exe	91

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
2132	powershell.exe
2132	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2728	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	hesaphareketi-01.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	948	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2728	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2132	2220	hesaphareketi-01.exe	84
PID 2220 wrote to memory of 2132	2220	hesaphareketi-01.exe	84
PID 2220 wrote to memory of 2132	2220	hesaphareketi-01.exe	84
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2220 wrote to memory of 2728	2220	hesaphareketi-01.exe	90
PID 2728 wrote to memory of 948	2728	hesaphareketi-01.exe	91
PID 2728 wrote to memory of 948	2728	hesaphareketi-01.exe	91
PID 2728 wrote to memory of 948	2728	hesaphareketi-01.exe	91
PID 2728 wrote to memory of 948	2728	hesaphareketi-01.exe	91
PID 2728 wrote to memory of 948	2728	hesaphareketi-01.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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:2220
- 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:2132
- 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:2728
- - 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:948

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/948-151-0x0000000005D10000-0x0000000005DAC000-memory.dmp

Filesize
624KB

Download
memory/948-150-0x0000000000F40000-0x0000000000F5A000-memory.dmp

Filesize
104KB

Download
memory/2132-140-0x00000000072A0000-0x000000000791A000-memory.dmp

Filesize
6.5MB

Download
memory/2132-135-0x0000000002430000-0x0000000002466000-memory.dmp

Filesize
216KB

Download
memory/2132-137-0x0000000004F60000-0x0000000004FC6000-memory.dmp

Filesize
408KB

Download
memory/2132-138-0x0000000004FD0000-0x0000000005036000-memory.dmp

Filesize
408KB

Download
memory/2132-139-0x0000000005C50000-0x0000000005C6E000-memory.dmp

Filesize
120KB

Download
memory/2132-141-0x0000000006150000-0x000000000616A000-memory.dmp

Filesize
104KB

Download
memory/2132-136-0x0000000005060000-0x0000000005688000-memory.dmp

Filesize
6.2MB

Download
memory/2220-132-0x00000000007C0000-0x00000000007CC000-memory.dmp

Filesize
48KB

Download
memory/2220-133-0x0000000005C30000-0x0000000005C52000-memory.dmp

Filesize
136KB

Download
memory/2728-148-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2728-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2728-143-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2728-152-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads