blustealer | 5e24b8db8856eba5cb5a2547949d3a3fbfb9c125172de04f8eb598f4ef33b526

General

Target

hesaphareketi-01,pdf.exe
Size

22KB
MD5

d8748aaaee46da2fc83ef3122863cd41
SHA1

df2a9725d6d3df7d53137300e9e6197ff161ff58
SHA256

5e24b8db8856eba5cb5a2547949d3a3fbfb9c125172de04f8eb598f4ef33b526
SHA512

64810d855583b27fe27f58ae22497df9debbcd3d59ebcd4842fa6734a27a9c93e47f3a72f0a2d5f33ec03cdf5ef15ba992daf7b332f491844a466bb168961925
SSDEEP

192:4b16DLDiNHv+figinxcsz7Fs2WS7M6zvlRJTHhnj4OpqZndlJ4biHPNLm:vDLDiJv+atZz5TBHCZJ5H1L

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5576673774:AAF__hFRh9bcJV72HkFb-9eZR9JNNyuOmFM/sendMessage?chat_id=1194722650

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/1984-142-0x0000000000F60000-0x0000000000F7A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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

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
11	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4956 set thread context of 992	4956	hesaphareketi-01,pdf.exe	83
PID 992 set thread context of 1984	992	hesaphareketi-01,pdf.exe	86

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 use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4956	hesaphareketi-01,pdf.exe
Token: SeDebugPrivilege	1984	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
992	hesaphareketi-01,pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 4956 wrote to memory of 992	4956	hesaphareketi-01,pdf.exe	83
PID 992 wrote to memory of 1984	992	hesaphareketi-01,pdf.exe	86
PID 992 wrote to memory of 1984	992	hesaphareketi-01,pdf.exe	86
PID 992 wrote to memory of 1984	992	hesaphareketi-01,pdf.exe	86
PID 992 wrote to memory of 1984	992	hesaphareketi-01,pdf.exe	86
PID 992 wrote to memory of 1984	992	hesaphareketi-01,pdf.exe	86

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\hesaphareketi-01,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe
  C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:992
- - 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:1984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/992-135-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/992-137-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/992-140-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/992-145-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1984-142-0x0000000000F60000-0x0000000000F7A000-memory.dmp

Filesize
104KB

Download
memory/1984-143-0x00000000053B0000-0x0000000005416000-memory.dmp

Filesize
408KB

Download
memory/1984-144-0x0000000005C30000-0x0000000005CCC000-memory.dmp

Filesize
624KB

Download
memory/4956-132-0x0000000000CF0000-0x0000000000CFC000-memory.dmp

Filesize
48KB

Download
memory/4956-133-0x00000000065C0000-0x00000000065E2000-memory.dmp

Filesize
136KB

Download

Analysis

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