blustealer | bb5efa133c2756135061e56c3a7e739e246827412af03a33557886e60b36c2d8

General

Target

hesaphareketi-01.exe
Size

878KB
MD5

cd65a330e760b1fc08352119b418aaa4
SHA1

d6af2bc47eb595fba9a377c72e2f28a9d7b7c081
SHA256

bb5efa133c2756135061e56c3a7e739e246827412af03a33557886e60b36c2d8
SHA512

98780942122329e4e41ff622b12547352f185b77460d2a4f7c90572e1e5ff058bda27d33f7a72b3fb4b05a9246efc34ee9eb542a4d42502afa6a43508880a1a7

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

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/1080-146-0x0000000000700000-0x000000000071A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\16.0\Outlook\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
1	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 3764	4260	hesaphareketi-01.exe	92
PID 3764 set thread context of 1080	3764	hesaphareketi-01.exe	94

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 7 IoCs

pid	Process
4260	hesaphareketi-01.exe
4260	hesaphareketi-01.exe
4260	hesaphareketi-01.exe
4260	hesaphareketi-01.exe
4260	hesaphareketi-01.exe
4260	hesaphareketi-01.exe
4260	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	hesaphareketi-01.exe
Token: SeDebugPrivilege	1080	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3764	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 4260 wrote to memory of 3764	4260	hesaphareketi-01.exe	92
PID 3764 wrote to memory of 1080	3764	hesaphareketi-01.exe	94
PID 3764 wrote to memory of 1080	3764	hesaphareketi-01.exe	94
PID 3764 wrote to memory of 1080	3764	hesaphareketi-01.exe	94
PID 3764 wrote to memory of 1080	3764	hesaphareketi-01.exe	94
PID 3764 wrote to memory of 1080	3764	hesaphareketi-01.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\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⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4260
- 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:3764
- - 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:1080

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/1080-146-0x0000000000700000-0x000000000071A000-memory.dmp

Filesize
104KB

Download
memory/3764-144-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3764-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3764-141-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3764-147-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4260-135-0x0000000005540000-0x000000000554A000-memory.dmp

Filesize
40KB

Download
memory/4260-136-0x00000000075F0000-0x000000000768C000-memory.dmp

Filesize
624KB

Download
memory/4260-137-0x0000000001290000-0x00000000012F6000-memory.dmp

Filesize
408KB

Download
memory/4260-132-0x0000000000AA0000-0x0000000000B82000-memory.dmp

Filesize
904KB

Download
memory/4260-134-0x0000000005590000-0x0000000005622000-memory.dmp

Filesize
584KB

Download
memory/4260-133-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download

Analysis

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