blustealer | 826e3671ba9e4e5b882513fe4805843f9ed48d26738e2072d33655ffcafca83d

General

Target

hesaphareketi-01.exe
Size

23KB
MD5

f6b1dd2591feab56f364a1ccaa7e2538
SHA1

4a703eebae8be5be510b2a77f8c0c3c02eb67a32
SHA256

826e3671ba9e4e5b882513fe4805843f9ed48d26738e2072d33655ffcafca83d
SHA512

616a976e8108801e3e94128596bab266606fbc4edabccfbdd269121967fe1ecf948619e128775c8ca25e3df95cb67538d14dca2d9e633acd2935c8480cc684b8
SSDEEP

192:GqjfkKXPCGDAev2PcoFTPnxcFz7Fs2WST6zvlRJTHhnj4OpqZndlJ4biHPNyW1:GqjfkFYAev2PbLYzQTBHCZJ5H1T

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5617443580:AAFX8iYrXMCASkw95O815OVGuLWLdSgh8Qo/sendMessage?chat_id=5334267822

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/4720-154-0x0000000000E20000-0x0000000000E3A000-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\Mmuioy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Hfpkxpe\\Mmuioy.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
51	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3756 set thread context of 3016	3756	hesaphareketi-01.exe	89
PID 3016 set thread context of 4720	3016	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
3624	powershell.exe
3624	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3016	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3756	hesaphareketi-01.exe
Token: SeDebugPrivilege	3624	powershell.exe
Token: SeDebugPrivilege	4720	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3016	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3756 wrote to memory of 3624	3756	hesaphareketi-01.exe	82
PID 3756 wrote to memory of 3624	3756	hesaphareketi-01.exe	82
PID 3756 wrote to memory of 3624	3756	hesaphareketi-01.exe	82
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3756 wrote to memory of 3016	3756	hesaphareketi-01.exe	89
PID 3016 wrote to memory of 4720	3016	hesaphareketi-01.exe	92
PID 3016 wrote to memory of 4720	3016	hesaphareketi-01.exe	92
PID 3016 wrote to memory of 4720	3016	hesaphareketi-01.exe	92
PID 3016 wrote to memory of 4720	3016	hesaphareketi-01.exe	92
PID 3016 wrote to memory of 4720	3016	hesaphareketi-01.exe	92

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:3756
- 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:3624
- 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:3016
- - 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:4720

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/3016-152-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3016-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3016-148-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3016-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3624-144-0x00000000064E0000-0x00000000064FA000-memory.dmp

Filesize
104KB

Download
memory/3624-139-0x00000000053B0000-0x00000000059D8000-memory.dmp

Filesize
6.2MB

Download
memory/3624-140-0x0000000005160000-0x00000000051C6000-memory.dmp

Filesize
408KB

Download
memory/3624-141-0x00000000051D0000-0x0000000005236000-memory.dmp

Filesize
408KB

Download
memory/3624-142-0x0000000006160000-0x000000000617E000-memory.dmp

Filesize
120KB

Download
memory/3624-143-0x0000000007790000-0x0000000007E0A000-memory.dmp

Filesize
6.5MB

Download
memory/3624-138-0x0000000002A80000-0x0000000002AB6000-memory.dmp

Filesize
216KB

Download
memory/3756-132-0x0000000000740000-0x000000000074C000-memory.dmp

Filesize
48KB

Download
memory/3756-136-0x0000000008450000-0x0000000008472000-memory.dmp

Filesize
136KB

Download
memory/3756-135-0x0000000005180000-0x000000000518A000-memory.dmp

Filesize
40KB

Download
memory/3756-134-0x00000000050D0000-0x0000000005162000-memory.dmp

Filesize
584KB

Download
memory/3756-133-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/4720-154-0x0000000000E20000-0x0000000000E3A000-memory.dmp

Filesize
104KB

Download
memory/4720-155-0x0000000005D10000-0x0000000005DAC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads