blustealer | abfc03fd72f7e6827cf30bf0b28bd95fbda4095c549e4a07b5f23b7aeb55f4c8

General

Target

hesaphareketi-01.exe
Size

30KB
MD5

e6afab8c4782348cc7fab5c84acf1883
SHA1

279ebffe57812186e4d4a7d65160b98674950a60
SHA256

abfc03fd72f7e6827cf30bf0b28bd95fbda4095c549e4a07b5f23b7aeb55f4c8
SHA512

6adfd0a446dbe13e09e71d71efc43be8cdf0ef579a5e6182d328da48ff88523c9bac8743e60fa0fbfb033dc12e583972d959ff7d4e6b8725dcedb36499b43678
SSDEEP

768:cobj0sOzazGQloqQFtY2GmmIewLCsXjwmxWtOB/ucCJ:chylovczSLXjwmxWtG/+J

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/2600-149-0x0000000000170000-0x000000000018A000-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\Vjvxt = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gdnunx\\Vjvxt.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
23	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 520 set thread context of 2716	520	hesaphareketi-01.exe	90
PID 2716 set thread context of 2600	2716	hesaphareketi-01.exe	91

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
1680	powershell.exe
1680	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2716	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	520	hesaphareketi-01.exe
Token: SeDebugPrivilege	1680	powershell.exe
Token: SeDebugPrivilege	2600	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2716	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 520 wrote to memory of 1680	520	hesaphareketi-01.exe	81
PID 520 wrote to memory of 1680	520	hesaphareketi-01.exe	81
PID 520 wrote to memory of 1680	520	hesaphareketi-01.exe	81
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 520 wrote to memory of 2716	520	hesaphareketi-01.exe	90
PID 2716 wrote to memory of 2600	2716	hesaphareketi-01.exe	91
PID 2716 wrote to memory of 2600	2716	hesaphareketi-01.exe	91
PID 2716 wrote to memory of 2600	2716	hesaphareketi-01.exe	91
PID 2716 wrote to memory of 2600	2716	hesaphareketi-01.exe	91
PID 2716 wrote to memory of 2600	2716	hesaphareketi-01.exe	91

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:520
- 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:1680
- 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:2716
- - 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:2600

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/520-132-0x0000000000A90000-0x0000000000A9E000-memory.dmp

Filesize
56KB

Download
memory/520-133-0x0000000006040000-0x0000000006062000-memory.dmp

Filesize
136KB

Download
memory/1680-140-0x0000000007780000-0x0000000007DFA000-memory.dmp

Filesize
6.5MB

Download
memory/1680-141-0x0000000006650000-0x000000000666A000-memory.dmp

Filesize
104KB

Download
memory/1680-136-0x0000000005250000-0x0000000005878000-memory.dmp

Filesize
6.2MB

Download
memory/1680-137-0x0000000005880000-0x00000000058E6000-memory.dmp

Filesize
408KB

Download
memory/1680-138-0x0000000005A60000-0x0000000005AC6000-memory.dmp

Filesize
408KB

Download
memory/1680-139-0x0000000006140000-0x000000000615E000-memory.dmp

Filesize
120KB

Download
memory/1680-135-0x0000000002AD0000-0x0000000002B06000-memory.dmp

Filesize
216KB

Download
memory/2600-149-0x0000000000170000-0x000000000018A000-memory.dmp

Filesize
104KB

Download
memory/2600-150-0x0000000005170000-0x000000000520C000-memory.dmp

Filesize
624KB

Download
memory/2716-143-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2716-145-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2716-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads