blustealer | 2c3ce21aed9ecd191dfefd59e3ea35ec6ec665cbe79f35e628b6e720d2233662

General

Target

hesaphareketi-01.exe
Size

25KB
MD5

e37b33e5a3135cf368bfc434ab681600
SHA1

d0176ba72e96a3ed239965d8ac63e6dba8280a72
SHA256

2c3ce21aed9ecd191dfefd59e3ea35ec6ec665cbe79f35e628b6e720d2233662
SHA512

1c906cd557c4cf62a1c9563fdad81392b4de773b866f376c42da6266b7de0fd3487d47a7346cfb49b41bf827a6d84fa0ed1e40c46c1404fcbf56a48c0f64e873
SSDEEP

384:ovncQtfcSL+x2JQFkLYLvLRHUQUngAFoTT:ozlcoMjxkrov

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/336-154-0x0000000001140000-0x000000000115A000-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\Qsjig = "\"C:\\Users\\Admin\\AppData\\Roaming\\Acxdr\\Qsjig.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
46	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4928 set thread context of 448	4928	hesaphareketi-01.exe	93
PID 448 set thread context of 336	448	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 2 IoCs

pid	Process
4588	powershell.exe
4588	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
448	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4928	hesaphareketi-01.exe
Token: SeDebugPrivilege	4588	powershell.exe
Token: SeDebugPrivilege	336	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
448	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 4588	4928	hesaphareketi-01.exe	83
PID 4928 wrote to memory of 4588	4928	hesaphareketi-01.exe	83
PID 4928 wrote to memory of 4588	4928	hesaphareketi-01.exe	83
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 4928 wrote to memory of 448	4928	hesaphareketi-01.exe	93
PID 448 wrote to memory of 336	448	hesaphareketi-01.exe	94
PID 448 wrote to memory of 336	448	hesaphareketi-01.exe	94
PID 448 wrote to memory of 336	448	hesaphareketi-01.exe	94
PID 448 wrote to memory of 336	448	hesaphareketi-01.exe	94
PID 448 wrote to memory of 336	448	hesaphareketi-01.exe	94

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:4928
- 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:4588
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:448
- - 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:336

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/336-156-0x0000000005E10000-0x0000000005EAC000-memory.dmp

Filesize
624KB

Download
memory/336-154-0x0000000001140000-0x000000000115A000-memory.dmp

Filesize
104KB

Download
memory/448-155-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/448-150-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/448-148-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4588-142-0x0000000005F10000-0x0000000005F76000-memory.dmp

Filesize
408KB

Download
memory/4588-146-0x0000000006AD0000-0x0000000006AEA000-memory.dmp

Filesize
104KB

Download
memory/4588-141-0x0000000005840000-0x0000000005E68000-memory.dmp

Filesize
6.2MB

Download
memory/4588-143-0x0000000005F80000-0x0000000005FE6000-memory.dmp

Filesize
408KB

Download
memory/4588-144-0x00000000065C0000-0x00000000065DE000-memory.dmp

Filesize
120KB

Download
memory/4588-145-0x0000000007C00000-0x000000000827A000-memory.dmp

Filesize
6.5MB

Download
memory/4588-140-0x0000000002FE0000-0x0000000003016000-memory.dmp

Filesize
216KB

Download
memory/4928-132-0x0000000000320000-0x000000000032C000-memory.dmp

Filesize
48KB

Download
memory/4928-138-0x0000000008820000-0x0000000008842000-memory.dmp

Filesize
136KB

Download
memory/4928-137-0x0000000008760000-0x0000000008812000-memory.dmp

Filesize
712KB

Download
memory/4928-136-0x00000000082A0000-0x00000000082F0000-memory.dmp

Filesize
320KB

Download
memory/4928-135-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4928-134-0x0000000004D20000-0x0000000004DB2000-memory.dmp

Filesize
584KB

Download
memory/4928-133-0x00000000053A0000-0x0000000005944000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads