blustealer | 1de6232574a545bdc8d105cbdaaa84dcf6dc0d71774d46c7fbe158b13e11dd1a

General

Target

Hesaphareketi-01.exe
Size

87KB
MD5

4696c1991b56b936a260d10c24e9f0a6
SHA1

e0a92d221c411e55435f032713e399723a06d707
SHA256

1de6232574a545bdc8d105cbdaaa84dcf6dc0d71774d46c7fbe158b13e11dd1a
SHA512

038975431034090209b381f84a2b71b3cc77f795ccf163c58dda28a17d5d1020b00f966393e1acbaeced298e3f5ce4f859242e3a4350c36f7011d2763a9d4447
SSDEEP

1536:PeEjNohembYWbo39G6AwOCy1hQfCw071xg/59jf:WEeho3rHyvo/bjf

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5472661190:AAH0_Es3-7EvHKo3diARLmBSPyMQ64sYLC8/sendMessage?chat_id=1148000519

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/4760-154-0x0000000000F00000-0x0000000000F1A000-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\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
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

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\Enigjxotvq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Evfixj\\Enigjxotvq.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
37	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4912 set thread context of 4592	4912	Hesaphareketi-01.exe	95
PID 4592 set thread context of 4760	4592	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 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 4 IoCs

pid	Process
4332	powershell.exe
4332	powershell.exe
4912	Hesaphareketi-01.exe
4912	Hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	Hesaphareketi-01.exe
Token: SeDebugPrivilege	4332	powershell.exe
Token: SeDebugPrivilege	4760	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4592	Hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 4332	4912	Hesaphareketi-01.exe	87
PID 4912 wrote to memory of 4332	4912	Hesaphareketi-01.exe	87
PID 4912 wrote to memory of 4332	4912	Hesaphareketi-01.exe	87
PID 4912 wrote to memory of 3232	4912	Hesaphareketi-01.exe	94
PID 4912 wrote to memory of 3232	4912	Hesaphareketi-01.exe	94
PID 4912 wrote to memory of 3232	4912	Hesaphareketi-01.exe	94
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4912 wrote to memory of 4592	4912	Hesaphareketi-01.exe	95
PID 4592 wrote to memory of 4760	4592	Hesaphareketi-01.exe	96
PID 4592 wrote to memory of 4760	4592	Hesaphareketi-01.exe	96
PID 4592 wrote to memory of 4760	4592	Hesaphareketi-01.exe	96
PID 4592 wrote to memory of 4760	4592	Hesaphareketi-01.exe	96
PID 4592 wrote to memory of 4760	4592	Hesaphareketi-01.exe	96

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4912
- 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:4332
- C:\Users\Admin\AppData\Local\Temp\Hesaphareketi-01.exe
  C:\Users\Admin\AppData\Local\Temp\Hesaphareketi-01.exe
  2⤵
  PID:3232
- 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:4592
- - 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:4760

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/4332-142-0x00000000066A0000-0x00000000066BE000-memory.dmp

Filesize
120KB

Download
memory/4332-143-0x0000000007D70000-0x00000000083EA000-memory.dmp

Filesize
6.5MB

Download
memory/4332-141-0x0000000006010000-0x0000000006076000-memory.dmp

Filesize
408KB

Download
memory/4332-144-0x0000000006B80000-0x0000000006B9A000-memory.dmp

Filesize
104KB

Download
memory/4332-138-0x0000000005130000-0x0000000005166000-memory.dmp

Filesize
216KB

Download
memory/4332-139-0x00000000057A0000-0x0000000005DC8000-memory.dmp

Filesize
6.2MB

Download
memory/4332-140-0x0000000005FA0000-0x0000000006006000-memory.dmp

Filesize
408KB

Download
memory/4592-149-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4592-152-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4592-147-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4592-156-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4760-154-0x0000000000F00000-0x0000000000F1A000-memory.dmp

Filesize
104KB

Download
memory/4760-155-0x0000000005EF0000-0x0000000005F8C000-memory.dmp

Filesize
624KB

Download
memory/4912-132-0x0000000000900000-0x000000000091C000-memory.dmp

Filesize
112KB

Download
memory/4912-135-0x0000000002F60000-0x0000000002F6A000-memory.dmp

Filesize
40KB

Download
memory/4912-134-0x00000000052F0000-0x0000000005382000-memory.dmp

Filesize
584KB

Download
memory/4912-136-0x0000000008700000-0x0000000008722000-memory.dmp

Filesize
136KB

Download
memory/4912-133-0x00000000058A0000-0x0000000005E44000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads