blustealer | f636d15642c8a199f125c5128bae3f367e7e9595af631d1080f24fc6d94fcb2a

General

Target

swift Zirat Bankasi Swift Mesaji,pdf.exe
Size

42KB
MD5

950b2eb32fcabb720d713f05a9e621bd
SHA1

8f4123b348c93691b5ef56c2280d027343686c68
SHA256

f636d15642c8a199f125c5128bae3f367e7e9595af631d1080f24fc6d94fcb2a
SHA512

23667ade6b2c826a10cdc303c7d0af97b79d13dfbac1eea5a4b823e12e845c104074847ae285225fc233dec920323f80ed514fe9cd81afdc1137899efbcbd226
SSDEEP

384:n1YgDFY7RNpfkLxmnSj3ge0G9s3CkEZsHLEn74i/8E9VF0Ny2ZxkEZsHLEs4i/8R:1YgRmnSj3gYCB2eE/beEm

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5583812995:AAFKzjSLC2-pDvMQ8X47-80XjrRiWrDtxA/sendMessage?chat_id=5434600361

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/3952-153-0x0000000000990000-0x00000000009AA000-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	swift Zirat 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-1-5-21-2295526160-1155304984-640977766-1000\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\Puvhllps = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ljvagaluf\\Puvhllps.exe\""	swift Zirat 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
42	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3588 set thread context of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3788 set thread context of 3952	3788	swift Zirat Bankasi Swift Mesaji,pdf.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 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
2348	powershell.exe
2348	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe
Token: SeDebugPrivilege	2348	powershell.exe
Token: SeDebugPrivilege	3952	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3788	swift Zirat Bankasi Swift Mesaji,pdf.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 2348	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	84
PID 3588 wrote to memory of 2348	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	84
PID 3588 wrote to memory of 2348	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	84
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3588 wrote to memory of 3788	3588	swift Zirat Bankasi Swift Mesaji,pdf.exe	91
PID 3788 wrote to memory of 3952	3788	swift Zirat Bankasi Swift Mesaji,pdf.exe	92
PID 3788 wrote to memory of 3952	3788	swift Zirat Bankasi Swift Mesaji,pdf.exe	92
PID 3788 wrote to memory of 3952	3788	swift Zirat Bankasi Swift Mesaji,pdf.exe	92
PID 3788 wrote to memory of 3952	3788	swift Zirat Bankasi Swift Mesaji,pdf.exe	92
PID 3788 wrote to memory of 3952	3788	swift Zirat Bankasi Swift Mesaji,pdf.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\swift Zirat Bankasi Swift Mesaji,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\swift Zirat 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:3588
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2348
- C:\Users\Admin\AppData\Local\Temp\swift Zirat Bankasi Swift Mesaji,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\swift Zirat Bankasi Swift Mesaji,pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3788
- - 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:3952

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

Replay Monitor

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Downloads

memory/2348-142-0x0000000005D90000-0x0000000005DAE000-memory.dmp

Filesize
120KB

Download
memory/2348-140-0x00000000056B0000-0x0000000005716000-memory.dmp

Filesize
408KB

Download
memory/2348-141-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/2348-144-0x0000000006270000-0x000000000628A000-memory.dmp

Filesize
104KB

Download
memory/2348-143-0x00000000075D0000-0x0000000007C4A000-memory.dmp

Filesize
6.5MB

Download
memory/2348-138-0x00000000047C0000-0x00000000047F6000-memory.dmp

Filesize
216KB

Download
memory/2348-139-0x0000000004EB0000-0x00000000054D8000-memory.dmp

Filesize
6.2MB

Download
memory/3588-136-0x0000000008B60000-0x0000000008B82000-memory.dmp

Filesize
136KB

Download
memory/3588-132-0x0000000000E50000-0x0000000000E5C000-memory.dmp

Filesize
48KB

Download
memory/3588-134-0x0000000005740000-0x00000000057D2000-memory.dmp

Filesize
584KB

Download
memory/3588-133-0x0000000005C50000-0x00000000061F4000-memory.dmp

Filesize
5.6MB

Download
memory/3588-135-0x00000000056D0000-0x00000000056DA000-memory.dmp

Filesize
40KB

Download
memory/3788-146-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3788-148-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3788-151-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3788-154-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3952-153-0x0000000000990000-0x00000000009AA000-memory.dmp

Filesize
104KB

Download
memory/3952-155-0x00000000058B0000-0x000000000594C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads