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 1 IoCs

resource	yara_rule
behavioral2/memory/4952-153-0x00000000009C0000-0x00000000009DA000-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-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
44	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1720 set thread context of 3528	1720	hesaphareketi-01.exe	95
PID 3528 set thread context of 4952	3528	hesaphareketi-01.exe	96

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	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
3584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4588	powershell.exe
4588	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3528	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	powershell.exe
Token: SeDebugPrivilege	4952	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3528	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 4588	1720	hesaphareketi-01.exe	91
PID 1720 wrote to memory of 4588	1720	hesaphareketi-01.exe	91
PID 1720 wrote to memory of 4588	1720	hesaphareketi-01.exe	91
PID 1720 wrote to memory of 3584	1720	hesaphareketi-01.exe	93
PID 1720 wrote to memory of 3584	1720	hesaphareketi-01.exe	93
PID 1720 wrote to memory of 3584	1720	hesaphareketi-01.exe	93
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 1720 wrote to memory of 3528	1720	hesaphareketi-01.exe	95
PID 3528 wrote to memory of 4952	3528	hesaphareketi-01.exe	96
PID 3528 wrote to memory of 4952	3528	hesaphareketi-01.exe	96
PID 3528 wrote to memory of 4952	3528	hesaphareketi-01.exe	96
PID 3528 wrote to memory of 4952	3528	hesaphareketi-01.exe	96
PID 3528 wrote to memory of 4952	3528	hesaphareketi-01.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1720
- 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:4588
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPhyAb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC227.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3584
- 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:3528
- - 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:4952

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

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC227.tmp

Filesize
1KB

MD5
c0f862f6328f93ea5624e4bfa68e5e34

SHA1
9ea74206f6ad0f514ae62548757b2094d0ecc727

SHA256
b140f0a7b91e6c36666aa9c8c290b89c34301780d0ec4d81bed205ae75983836

SHA512
b845f3198220ae901cc6377eb71c5e2f40f6f8bef6e485ea2eb46796becac680443994f8019ae953246e3c48253a8d717c0f8dfad68bbbaa69cdfb547c30195c

Download Submit
memory/1720-133-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/1720-134-0x00000000051C0000-0x0000000005252000-memory.dmp

Filesize
584KB

Download
memory/1720-135-0x0000000002D20000-0x0000000002D2A000-memory.dmp

Filesize
40KB

Download
memory/1720-136-0x0000000008E90000-0x0000000008F2C000-memory.dmp

Filesize
624KB

Download
memory/1720-132-0x0000000000740000-0x00000000007DA000-memory.dmp

Filesize
616KB

Download
memory/3528-144-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3528-161-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3528-142-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4588-149-0x0000000005960000-0x00000000059C6000-memory.dmp

Filesize
408KB

Download
memory/4588-155-0x0000000071CD0000-0x0000000071D1C000-memory.dmp

Filesize
304KB

Download
memory/4588-148-0x0000000005840000-0x0000000005862000-memory.dmp

Filesize
136KB

Download
memory/4588-139-0x0000000002F00000-0x0000000002F36000-memory.dmp

Filesize
216KB

Download
memory/4588-150-0x00000000061D0000-0x0000000006236000-memory.dmp

Filesize
408KB

Download
memory/4588-151-0x00000000067F0000-0x000000000680E000-memory.dmp

Filesize
120KB

Download
memory/4588-164-0x0000000007E30000-0x0000000007E38000-memory.dmp

Filesize
32KB

Download
memory/4588-163-0x0000000007E40000-0x0000000007E5A000-memory.dmp

Filesize
104KB

Download
memory/4588-154-0x0000000006DC0000-0x0000000006DF2000-memory.dmp

Filesize
200KB

Download
memory/4588-145-0x0000000005A30000-0x0000000006058000-memory.dmp

Filesize
6.2MB

Download
memory/4588-156-0x0000000006DA0000-0x0000000006DBE000-memory.dmp

Filesize
120KB

Download
memory/4588-157-0x0000000008140000-0x00000000087BA000-memory.dmp

Filesize
6.5MB

Download
memory/4588-158-0x0000000005590000-0x00000000055AA000-memory.dmp

Filesize
104KB

Download
memory/4588-159-0x0000000007B80000-0x0000000007B8A000-memory.dmp

Filesize
40KB

Download
memory/4588-160-0x0000000007D80000-0x0000000007E16000-memory.dmp

Filesize
600KB

Download
memory/4588-162-0x0000000007D40000-0x0000000007D4E000-memory.dmp

Filesize
56KB

Download
memory/4952-153-0x00000000009C0000-0x00000000009DA000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads