blustealer | ba92119725503b0b5e754a57af62b63d72db95940051489a188ddc8133f416ff

General

Target

Ziraat Bankasi Swift Mesaji.pdf.exe
Size

33KB
MD5

9455a7717d998dc24c5fc7a1246982e1
SHA1

936922703bc7fefc3a327d85cfa175722f58f6bd
SHA256

ba92119725503b0b5e754a57af62b63d72db95940051489a188ddc8133f416ff
SHA512

32ffa42e92027902944a24d297c979068de4cd2588730df6f4f889e6c476df9c8bc0d6f30137933e64b4e66c834083ac481108b1acb2e7d24cc7f5c86e0469ef
SSDEEP

768:W5skIZ2HBGYd6SPdPR9/hIqQFtY2GmmIewLCsXjwmxWtOB/ucCtrOl:oXWYd6ALJmvczSLXjwmxWtG/+0

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/4416-149-0x0000000000980000-0x000000000099A000-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	Ziraat Bankasi Swift Mesaji.pdf.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\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
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\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\Pbigml = "\"C:\\Users\\Admin\\AppData\\Roaming\\Sgkcrysjxk\\Pbigml.exe\""	Ziraat Bankasi Swift Mesaji.pdf.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
23	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3480 set thread context of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 4460 set thread context of 4416	4460	Ziraat Bankasi Swift Mesaji.pdf.exe	91

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4708	powershell.exe
4708	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4460	Ziraat Bankasi Swift Mesaji.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3480	Ziraat Bankasi Swift Mesaji.pdf.exe
Token: SeDebugPrivilege	4708	powershell.exe
Token: SeDebugPrivilege	4416	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4460	Ziraat Bankasi Swift Mesaji.pdf.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 4708	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	82
PID 3480 wrote to memory of 4708	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	82
PID 3480 wrote to memory of 4708	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	82
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 3480 wrote to memory of 4460	3480	Ziraat Bankasi Swift Mesaji.pdf.exe	90
PID 4460 wrote to memory of 4416	4460	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4460 wrote to memory of 4416	4460	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4460 wrote to memory of 4416	4460	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4460 wrote to memory of 4416	4460	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4460 wrote to memory of 4416	4460	Ziraat Bankasi Swift Mesaji.pdf.exe	91

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\Ziraat Bankasi Swift Mesaji.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.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:3480
- 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:4708
- C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4460
- - 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:4416

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/3480-133-0x0000000006880000-0x00000000068A2000-memory.dmp

Filesize
136KB

Download
memory/3480-132-0x0000000000D20000-0x0000000000D2E000-memory.dmp

Filesize
56KB

Download
memory/4416-151-0x0000000005770000-0x000000000580C000-memory.dmp

Filesize
624KB

Download
memory/4416-149-0x0000000000980000-0x000000000099A000-memory.dmp

Filesize
104KB

Download
memory/4460-152-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4460-150-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4460-145-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4460-143-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4708-136-0x00000000059A0000-0x0000000005FC8000-memory.dmp

Filesize
6.2MB

Download
memory/4708-141-0x0000000006CA0000-0x0000000006CBA000-memory.dmp

Filesize
104KB

Download
memory/4708-140-0x0000000007E20000-0x000000000849A000-memory.dmp

Filesize
6.5MB

Download
memory/4708-139-0x0000000006790000-0x00000000067AE000-memory.dmp

Filesize
120KB

Download
memory/4708-138-0x0000000006180000-0x00000000061E6000-memory.dmp

Filesize
408KB

Download
memory/4708-137-0x00000000060A0000-0x0000000006106000-memory.dmp

Filesize
408KB

Download
memory/4708-135-0x00000000031A0000-0x00000000031D6000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads