blustealer | 5d84455c995581344c9e8eeb50acc7542ddfc4077a482f2a04719b0b559c15db

General

Target

b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
Size

1.0MB
MD5

56ef7a3ec68e156065b4ca3a21b677c0
SHA1

1921d5a2f2d1094d57ed81cf0fb4f1972d5ec314
SHA256

b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab
SHA512

4c5a5246a5f464cceaee9b000d21d3ae5aa88226ef6f0ab64e63ddbeacbfc302d017a472aaa89e4d0a52d40288f3c8219bf023f04e9a6978598728a1b2f413d1
SSDEEP

12288:0kNjmex1ahAd3gFuKlthapQXWtG6o/mFM+aG:0kxmeLdQjrGtho/EM+

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/432-146-0x0000000000720000-0x000000000073A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\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
45	icanhazip.com

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{548EFDDD-87B9-4BA6-B01B-369B4FA65C10}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{26BCF806-0729-4A72-9AE8-9489A6EB99B3}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4904 set thread context of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 3236 set thread context of 432	3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	89

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 5 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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
Token: SeDebugPrivilege	432	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 4904 wrote to memory of 3236	4904	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	88
PID 3236 wrote to memory of 432	3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	89
PID 3236 wrote to memory of 432	3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	89
PID 3236 wrote to memory of 432	3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	89
PID 3236 wrote to memory of 432	3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	89
PID 3236 wrote to memory of 432	3236	b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe	89

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\b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
"C:\Users\Admin\AppData\Local\Temp\b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe
  "C:\Users\Admin\AppData\Local\Temp\b034103df2ee0d962c9e614fc8f54ddfee1b74a815a1af90e5f90b03db3f6bab.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3236
- - 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:432

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:2140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/432-146-0x0000000000720000-0x000000000073A000-memory.dmp

Filesize
104KB

Download
memory/3236-144-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3236-139-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3236-141-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3236-147-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4904-135-0x0000000005960000-0x000000000596A000-memory.dmp

Filesize
40KB

Download
memory/4904-136-0x0000000009320000-0x00000000093BC000-memory.dmp

Filesize
624KB

Download
memory/4904-137-0x00000000016E0000-0x0000000001746000-memory.dmp

Filesize
408KB

Download
memory/4904-132-0x0000000000EB0000-0x0000000000FBC000-memory.dmp

Filesize
1.0MB

Download
memory/4904-134-0x0000000005A20000-0x0000000005AB2000-memory.dmp

Filesize
584KB

Download
memory/4904-133-0x0000000005FD0000-0x0000000006574000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads