blustealer | 2aad22bee9e2bb4ef6370fde5e0a43b06e541235e314b5a4a52dfb8357d477c3

Analysis

max time kernel
152s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2022 07:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

hesaphareketi-01.exe
Size

25KB
MD5

aef764d141280332ade9518ffdcdcb98
SHA1

65d4f7cfcd3732a45312aa38e112513ef63a4c1f
SHA256

2aad22bee9e2bb4ef6370fde5e0a43b06e541235e314b5a4a52dfb8357d477c3
SHA512

802f9a05a2e39863a6ddf8e1f0eabdf4c7ccd2c94d52a08fac24e7a60721d95400801ed31eb72fcb6e2bd75981a797e67ce9ef84950ea65a02e8ce3a58662c70
SSDEEP

384:70EWl++F6Lv9OecKbgQBSsMcptYcFmVc03K:evsVvEsMotYcFmVc6K

Score

10^/10

blustealer stormkitty collection persistence stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718

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/4332-6473-0x0000000000D80000-0x0000000000D9A000-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\Rdhaw = "\"C:\\Users\\Admin\\AppData\\Roaming\\Rafksgpgf\\Rdhaw.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
40	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4948 set thread context of 1876	4948	hesaphareketi-01.exe	91
PID 1876 set thread context of 4332	1876	InstallUtil.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 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 2 IoCs

pid	Process
4520	powershell.exe
4520	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1876	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4948	hesaphareketi-01.exe
Token: SeDebugPrivilege	4520	powershell.exe
Token: SeDebugPrivilege	4332	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1876	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 4520	4948	hesaphareketi-01.exe	83
PID 4948 wrote to memory of 4520	4948	hesaphareketi-01.exe	83
PID 4948 wrote to memory of 4520	4948	hesaphareketi-01.exe	83
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 4948 wrote to memory of 1876	4948	hesaphareketi-01.exe	91
PID 1876 wrote to memory of 4332	1876	InstallUtil.exe	92
PID 1876 wrote to memory of 4332	1876	InstallUtil.exe	92
PID 1876 wrote to memory of 4332	1876	InstallUtil.exe	92
PID 1876 wrote to memory of 4332	1876	InstallUtil.exe	92
PID 1876 wrote to memory of 4332	1876	InstallUtil.exe	92

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4948
- 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:4520
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1876
- - 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:4332

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1876-6470-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1876-6474-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4332-6473-0x0000000000D80000-0x0000000000D9A000-memory.dmp

Filesize
104KB

Download
memory/4332-6475-0x0000000005D60000-0x0000000005DFC000-memory.dmp

Filesize
624KB

Download
memory/4520-6463-0x0000000006120000-0x000000000613A000-memory.dmp

Filesize
104KB

Download
memory/4520-6462-0x0000000007240000-0x00000000078BA000-memory.dmp

Filesize
6.5MB

Download
memory/4520-6461-0x0000000004950000-0x000000000496E000-memory.dmp

Filesize
120KB

Download
memory/4520-6460-0x0000000004DF0000-0x0000000004E56000-memory.dmp

Filesize
408KB

Download
memory/4520-6459-0x0000000004D80000-0x0000000004DE6000-memory.dmp

Filesize
408KB

Download
memory/4520-6458-0x0000000004ED0000-0x00000000054F8000-memory.dmp

Filesize
6.2MB

Download
memory/4520-6457-0x00000000025B0000-0x00000000025E6000-memory.dmp

Filesize
216KB

Download
memory/4948-154-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-192-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-162-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-164-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-166-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-168-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-170-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-172-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-174-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-176-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-178-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-180-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-182-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-184-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-186-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-188-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-190-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-160-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-194-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-196-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-6455-0x0000000006D80000-0x0000000006DA2000-memory.dmp

Filesize
136KB

Download
memory/4948-158-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-156-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-132-0x0000000000910000-0x000000000091C000-memory.dmp

Filesize
48KB

Download
memory/4948-152-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-150-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-148-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-146-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-144-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-142-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-140-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-138-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-136-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-133-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download
memory/4948-134-0x0000000008EF0000-0x0000000008F31000-memory.dmp

Filesize
260KB

Download