blustealer | c6deef7825e9fc588ee77c25398896ac695e0c02c44276fc4382218807b01e17

Analysis

max time kernel
125s
max time network
63s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-11-2022 06:38

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General

Target

SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe
Size

943KB
MD5

779aba07d9e38600f5d56b1cdb4b13b3
SHA1

978dbdd1de6938658fd2bb7fa62504bc9854e7df
SHA256

c6deef7825e9fc588ee77c25398896ac695e0c02c44276fc4382218807b01e17
SHA512

c1cb51a4be7c0c76b038aa22bdb3e171e7a07104ca87195f5dd854bfd56b48d101b630addce08d3bae5b86e6cf6ac82c5ce01cf0d2d1c8254b0f3e6c51a743ad
SSDEEP

12288:njm1ajgVIqHZCWRehw84H+ZzF0ImT9JfeDH8EM1xr:cajysjhw+MImTbfmrwxr

Score

10^/10

blustealer stormkitty collection 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 4 IoCs

resource	yara_rule
behavioral1/memory/868-80-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/868-81-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/868-83-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/868-85-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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 1280 set thread context of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 592 set thread context of 868	592	RegSvcs.exe	34

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
1760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe
1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe
624	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
592	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe
Token: SeDebugPrivilege	624	powershell.exe
Token: SeDebugPrivilege	868	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
592	RegSvcs.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 624	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	28
PID 1280 wrote to memory of 624	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	28
PID 1280 wrote to memory of 624	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	28
PID 1280 wrote to memory of 624	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	28
PID 1280 wrote to memory of 1760	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	30
PID 1280 wrote to memory of 1760	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	30
PID 1280 wrote to memory of 1760	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	30
PID 1280 wrote to memory of 1760	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	30
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 904	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	32
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 1280 wrote to memory of 592	1280	SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe	33
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34
PID 592 wrote to memory of 868	592	RegSvcs.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.16062.16220.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lOtOQV.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:624
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lOtOQV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A46.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1760
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:904
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:592
- - 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:868

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8A46.tmp

Filesize
1KB

MD5
0114a3f68744cc8b05d1fa67fb62c9f5

SHA1
3f779d5f0d7d5622cb792181913fe9f075f01269

SHA256
91cc2da060eebdce2bdb1f10313c283c609fad7e0017b63919fb4e0cfc647cbb

SHA512
b079c533d1779d703584add24f39645f2bfb09b5837f3955a1734f7f33352aa3cadcba9e0176ff36a88c61c8c5c4e223b611e8881f0329720ebb527a70dd8e35

Download Submit
memory/592-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/592-89-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/592-87-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/592-73-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/592-70-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/592-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/592-66-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/624-77-0x000000006E6C0000-0x000000006EC6B000-memory.dmp

Filesize
5.7MB

Download
memory/624-88-0x000000006E6C0000-0x000000006EC6B000-memory.dmp

Filesize
5.7MB

Download
memory/868-78-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/868-80-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/868-83-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/868-85-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1280-59-0x0000000005190000-0x00000000051F2000-memory.dmp

Filesize
392KB

Download
memory/1280-58-0x0000000000440000-0x000000000044E000-memory.dmp

Filesize
56KB

Download
memory/1280-57-0x00000000003D0000-0x00000000003E6000-memory.dmp

Filesize
88KB

Download
memory/1280-54-0x0000000000C80000-0x0000000000D72000-memory.dmp

Filesize
968KB

Download
memory/1280-64-0x0000000005650000-0x000000000567C000-memory.dmp

Filesize
176KB

Download
memory/1280-56-0x0000000004810000-0x00000000048A2000-memory.dmp

Filesize
584KB

Download
memory/1280-55-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download