blustealer | 4cb61e7c5bcb9bb42b09516ca92321e2a184a52eeed3274b850656f44d7b05ee

General

Target

hesaphareketi-01.exe
Size

105KB
MD5

675c1ffa6c0f559f2336334f7d69b81b
SHA1

07695f1fe96462bd4f6947973078cd0ecd5a80cb
SHA256

4cb61e7c5bcb9bb42b09516ca92321e2a184a52eeed3274b850656f44d7b05ee
SHA512

0c57b2dd63c423ce4755d83424e1964f9d05fc0a2390667b949501aa5e22670d7be647a664f2f18f9645c1165a43491f2c75882854a62cc298051751f7c5e371
SSDEEP

3072:Qvf3+IZ2ByFUQO7JrnQjm7szl7sC7wwx:XIZ2CUvQj9zl7I

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5468731092:AAGGNQWBVRhX622u6xp1moMhaunIGtXuIxg/sendMessage?chat_id=1639214896

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/3416-150-0x0000000000430000-0x000000000044A000-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-1-5-21-2891029575-1462575-1165213807-1000\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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Meayij = "\"C:\\Users\\Admin\\AppData\\Roaming\\Lestelur\\Meayij.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 3884 set thread context of 4884	3884	hesaphareketi-01.exe	91
PID 4884 set thread context of 3416	4884	hesaphareketi-01.exe	92

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
536	powershell.exe
536	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3884	hesaphareketi-01.exe
Token: SeDebugPrivilege	536	powershell.exe
Token: SeDebugPrivilege	3416	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4884	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3884 wrote to memory of 536	3884	hesaphareketi-01.exe	85
PID 3884 wrote to memory of 536	3884	hesaphareketi-01.exe	85
PID 3884 wrote to memory of 536	3884	hesaphareketi-01.exe	85
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 3884 wrote to memory of 4884	3884	hesaphareketi-01.exe	91
PID 4884 wrote to memory of 3416	4884	hesaphareketi-01.exe	92
PID 4884 wrote to memory of 3416	4884	hesaphareketi-01.exe	92
PID 4884 wrote to memory of 3416	4884	hesaphareketi-01.exe	92
PID 4884 wrote to memory of 3416	4884	hesaphareketi-01.exe	92
PID 4884 wrote to memory of 3416	4884	hesaphareketi-01.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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:3884
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:536
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4884
- - 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

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/536-140-0x0000000007880000-0x0000000007EFA000-memory.dmp

Filesize
6.5MB

Download
memory/536-141-0x0000000006720000-0x000000000673A000-memory.dmp

Filesize
104KB

Download
memory/536-135-0x0000000002880000-0x00000000028B6000-memory.dmp

Filesize
216KB

Download
memory/536-136-0x0000000005490000-0x0000000005AB8000-memory.dmp

Filesize
6.2MB

Download
memory/536-137-0x00000000052A0000-0x0000000005306000-memory.dmp

Filesize
408KB

Download
memory/536-138-0x0000000005310000-0x0000000005376000-memory.dmp

Filesize
408KB

Download
memory/536-139-0x0000000006230000-0x000000000624E000-memory.dmp

Filesize
120KB

Download
memory/3416-150-0x0000000000430000-0x000000000044A000-memory.dmp

Filesize
104KB

Download
memory/3416-151-0x0000000005120000-0x00000000051BC000-memory.dmp

Filesize
624KB

Download
memory/3884-133-0x0000000005880000-0x00000000058A2000-memory.dmp

Filesize
136KB

Download
memory/3884-132-0x00000000001D0000-0x00000000001F0000-memory.dmp

Filesize
128KB

Download
memory/4884-152-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4884-143-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4884-145-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4884-148-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads