blustealer | e0d5b8485b278b1b74915a2d83bffeeb53e67e309620f9eaeb0f836c01813e05

General

Target

hesaphareketi-01.exe
Size

89KB
MD5

a393679a29046acea89136e6924c3e19
SHA1

df345f6ee3e546d6d9320dc68482f0cc643ffed5
SHA256

711d00503de479cd6ffd1492e2d42eecd96c9a946c0d6bb088dd37c696a76f00
SHA512

787dccef6355378219f47217850df51c7ac5a72e2a1d3a04426a89bfe2ca32d0be13a2e421b4ab0cd0c95048dc53ffec1c8a95e0a9cd349b33a6818a159042e2

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/4776-153-0x0000000001160000-0x000000000117A000-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\Ahkpy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Krpxmqcbf\\Ahkpy.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
24	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4936 set thread context of 216	4936	hesaphareketi-01.exe	86
PID 216 set thread context of 4776	216	hesaphareketi-01.exe	87

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
4524	powershell.exe
4524	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
216	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4936	hesaphareketi-01.exe
Token: SeDebugPrivilege	4524	powershell.exe
Token: SeDebugPrivilege	4776	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
216	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4524	4936	hesaphareketi-01.exe	84
PID 4936 wrote to memory of 4524	4936	hesaphareketi-01.exe	84
PID 4936 wrote to memory of 4524	4936	hesaphareketi-01.exe	84
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 4936 wrote to memory of 216	4936	hesaphareketi-01.exe	86
PID 216 wrote to memory of 4776	216	hesaphareketi-01.exe	87
PID 216 wrote to memory of 4776	216	hesaphareketi-01.exe	87
PID 216 wrote to memory of 4776	216	hesaphareketi-01.exe	87
PID 216 wrote to memory of 4776	216	hesaphareketi-01.exe	87
PID 216 wrote to memory of 4776	216	hesaphareketi-01.exe	87

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4936
- 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:4524
- 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:216
- - 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:4776

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/216-155-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/216-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/216-148-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/216-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4524-144-0x0000000006AA0000-0x0000000006ABA000-memory.dmp

Filesize
104KB

Download
memory/4524-139-0x00000000057F0000-0x0000000005E18000-memory.dmp

Filesize
6.2MB

Download
memory/4524-140-0x0000000005760000-0x00000000057C6000-memory.dmp

Filesize
408KB

Download
memory/4524-141-0x0000000005F50000-0x0000000005FB6000-memory.dmp

Filesize
408KB

Download
memory/4524-142-0x0000000006580000-0x000000000659E000-memory.dmp

Filesize
120KB

Download
memory/4524-143-0x0000000007E00000-0x000000000847A000-memory.dmp

Filesize
6.5MB

Download
memory/4524-138-0x0000000002FA0000-0x0000000002FD6000-memory.dmp

Filesize
216KB

Download
memory/4776-153-0x0000000001160000-0x000000000117A000-memory.dmp

Filesize
104KB

Download
memory/4776-154-0x0000000005F30000-0x0000000005FCC000-memory.dmp

Filesize
624KB

Download
memory/4936-132-0x00000000000B0000-0x00000000000CC000-memory.dmp

Filesize
112KB

Download
memory/4936-136-0x0000000006370000-0x0000000006392000-memory.dmp

Filesize
136KB

Download
memory/4936-135-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4936-134-0x0000000004AB0000-0x0000000004B42000-memory.dmp

Filesize
584KB

Download
memory/4936-133-0x0000000004DC0000-0x0000000005364000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads