blustealer | d079abc9b57395804589c2583f98855b02d8aab8f850df5c56a9ce0aa1114508

General

Target

hesaphareketi-01.exe
Size

597KB
MD5

da88f31c52b2e7db62ae5840870b2a37
SHA1

7ba2fc17c47159045f52ca317c581f2a2b79939f
SHA256

d079abc9b57395804589c2583f98855b02d8aab8f850df5c56a9ce0aa1114508
SHA512

c7a78c7026e6a2dbf3080d19c7ff311448e3c59f937f1d2b8397965f872fffad10f8c2be1385284ec9ab24d1d6ce87f021da90a2f8307729f0ba116a5872823b
SSDEEP

12288:7acepbKbfqHbOAHD0j356a5R6P2mQtqSBwAqV+:7ZMbKibZHD0zz5EemaqswT

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718

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 4 IoCs

resource	yara_rule
behavioral1/memory/1396-78-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1396-79-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1396-81-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1396-83-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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
4	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 828 set thread context of 1240	828	hesaphareketi-01.exe	31
PID 1240 set thread context of 1396	1240	hesaphareketi-01.exe	32

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

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
520	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
856	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1240	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	powershell.exe
Token: SeDebugPrivilege	1396	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1240	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 856	828	hesaphareketi-01.exe	27
PID 828 wrote to memory of 856	828	hesaphareketi-01.exe	27
PID 828 wrote to memory of 856	828	hesaphareketi-01.exe	27
PID 828 wrote to memory of 856	828	hesaphareketi-01.exe	27
PID 828 wrote to memory of 520	828	hesaphareketi-01.exe	29
PID 828 wrote to memory of 520	828	hesaphareketi-01.exe	29
PID 828 wrote to memory of 520	828	hesaphareketi-01.exe	29
PID 828 wrote to memory of 520	828	hesaphareketi-01.exe	29
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 828 wrote to memory of 1240	828	hesaphareketi-01.exe	31
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32
PID 1240 wrote to memory of 1396	1240	hesaphareketi-01.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xPhyAb.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:856
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPhyAb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp25AB.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:520
- 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:1240
- - 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:1396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp25AB.tmp

Filesize
1KB

MD5
b048a2c1c6c5f84f673791e292838500

SHA1
112a672d4991329a28a14ce62ecf5f4d25812bda

SHA256
f28f52a7da829bfcdac58623c775b3140c23f99c1f5bb3ab1717d6951a5bf7b2

SHA512
527a93ce3e259dca542bf55501877edcba4c6e84b073437382a0f3ad50f8d77ee6d54fff2abfa5f82b1e3cc305417a6ba725274ea3976bfc8d6eb391228299bb

Download Submit
memory/828-54-0x0000000000940000-0x00000000009DA000-memory.dmp

Filesize
616KB

Download
memory/828-55-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

Filesize
8KB

Download
memory/828-56-0x0000000000340000-0x0000000000356000-memory.dmp

Filesize
88KB

Download
memory/828-57-0x0000000000390000-0x000000000039E000-memory.dmp

Filesize
56KB

Download
memory/828-58-0x0000000004360000-0x00000000043C2000-memory.dmp

Filesize
392KB

Download
memory/828-63-0x0000000002110000-0x000000000213C000-memory.dmp

Filesize
176KB

Download
memory/856-87-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/856-86-0x0000000074760000-0x0000000074D0B000-memory.dmp

Filesize
5.7MB

Download
memory/1240-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1240-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1240-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1240-85-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1240-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1240-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1240-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1396-76-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1396-78-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1396-81-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1396-83-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads