blustealer | 5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02

General

Target

41570002689_20221003_05352297_HesapOzeti.exe
Size

986KB
MD5

105955bc97408324ae104395d1f027bf
SHA1

a9b8d839c3f4d2c4cd20831127ae1d5b02ff8664
SHA256

5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02
SHA512

2ad552ad8272aea0161d0a212925e9fc9cbbb690cfb701bb332525cf1150c92344c355a2dc7fab9931338e5110295f31f520cdbf57ec390e24f4aec50be14d37
SSDEEP

12288:FnJSxRRBR7yXKBs8ypLpeYqktgNeBwyPX2c00QEhWT5MWwtr4veUCyK+zWkv:zwWXKBs5dQYqktE87/2cVQLFwR4veU

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

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 4 IoCs

resource	yara_rule
behavioral1/memory/1104-78-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1104-79-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1104-81-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1104-83-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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
4	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1468 set thread context of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1952 set thread context of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32

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

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1368	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1468	41570002689_20221003_05352297_HesapOzeti.exe
1468	41570002689_20221003_05352297_HesapOzeti.exe
1468	41570002689_20221003_05352297_HesapOzeti.exe
1468	41570002689_20221003_05352297_HesapOzeti.exe
576	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1952	41570002689_20221003_05352297_HesapOzeti.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1468	41570002689_20221003_05352297_HesapOzeti.exe
Token: SeDebugPrivilege	576	powershell.exe
Token: SeDebugPrivilege	1104	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1952	41570002689_20221003_05352297_HesapOzeti.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 576	1468	41570002689_20221003_05352297_HesapOzeti.exe	27
PID 1468 wrote to memory of 576	1468	41570002689_20221003_05352297_HesapOzeti.exe	27
PID 1468 wrote to memory of 576	1468	41570002689_20221003_05352297_HesapOzeti.exe	27
PID 1468 wrote to memory of 576	1468	41570002689_20221003_05352297_HesapOzeti.exe	27
PID 1468 wrote to memory of 1368	1468	41570002689_20221003_05352297_HesapOzeti.exe	29
PID 1468 wrote to memory of 1368	1468	41570002689_20221003_05352297_HesapOzeti.exe	29
PID 1468 wrote to memory of 1368	1468	41570002689_20221003_05352297_HesapOzeti.exe	29
PID 1468 wrote to memory of 1368	1468	41570002689_20221003_05352297_HesapOzeti.exe	29
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1468 wrote to memory of 1952	1468	41570002689_20221003_05352297_HesapOzeti.exe	31
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32
PID 1952 wrote to memory of 1104	1952	41570002689_20221003_05352297_HesapOzeti.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221003_05352297_HesapOzeti.exe
"C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221003_05352297_HesapOzeti.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bTCHuL.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:576
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bTCHuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF51.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1368
- C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221003_05352297_HesapOzeti.exe
  "C:\Users\Admin\AppData\Local\Temp\ 41570002689_20221003_05352297_HesapOzeti.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1952
- - 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:1104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCF51.tmp

Filesize
1KB

MD5
ee81a6a9090164b76d001f141eb38d44

SHA1
b42933d88fb25924869045f2a5eb38b62ed3954c

SHA256
d94718f1274bafea66f56030f3ecf85f861e6ebd5d7d8bb4120337a965f9cb76

SHA512
1850be0c6031e13b840b7ec2c8b1a1649649432e57700062c25db1e0e3f0eb59ccddc9537c0ba7036373ee1ab3ee578e0db4db7070cbe3b202dbaccd3bba4d33

Download Submit
memory/576-87-0x000000006F110000-0x000000006F6BB000-memory.dmp

Filesize
5.7MB

Download
memory/576-86-0x000000006F110000-0x000000006F6BB000-memory.dmp

Filesize
5.7MB

Download
memory/1104-76-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1104-83-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1104-81-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1104-78-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1468-57-0x0000000000CE0000-0x0000000000CEC000-memory.dmp

Filesize
48KB

Download
memory/1468-58-0x0000000004B40000-0x0000000004BC2000-memory.dmp

Filesize
520KB

Download
memory/1468-55-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/1468-56-0x0000000000770000-0x000000000078C000-memory.dmp

Filesize
112KB

Download
memory/1468-54-0x0000000000EF0000-0x0000000000FEC000-memory.dmp

Filesize
1008KB

Download
memory/1468-63-0x0000000007570000-0x000000000759C000-memory.dmp

Filesize
176KB

Download
memory/1952-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1952-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1952-85-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1952-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1952-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1952-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1952-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads