blustealer | 5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14

Analysis

max time kernel
148s
max time network
83s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
10-10-2022 12:09

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General

Target

5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe
Size

916KB
MD5

36fdb48cc5c22aa2830b34fccb9fca3d
SHA1

9fa2af364b6320a09cd19bb5d4f4469751125f6a
SHA256

5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14
SHA512

7e84aad88a7c926df983d111144c5c5d2de878b0ee2cb302efa57dadea56c206542ca6c32fa0098581cf6b4cb9508e3f5473f56b106388cc32615a4595754e06
SSDEEP

12288:1hLuyAHx4AlAp8uoJbd4Hjt4ukeYotkFSfvXTKEZixlARHwsb+zv0B636:1hLuyyEpuat4uk5EnTvU6MvSn

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/908-80-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/908-81-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/908-83-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/908-85-0x0000000000090000-0x00000000000AA000-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 1212 set thread context of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1540 set thread context of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33

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
1200	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe
1736	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe
Token: SeDebugPrivilege	1736	powershell.exe
Token: SeDebugPrivilege	908	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 1736	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	27
PID 1212 wrote to memory of 1736	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	27
PID 1212 wrote to memory of 1736	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	27
PID 1212 wrote to memory of 1736	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	27
PID 1212 wrote to memory of 1200	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	29
PID 1212 wrote to memory of 1200	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	29
PID 1212 wrote to memory of 1200	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	29
PID 1212 wrote to memory of 1200	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	29
PID 1212 wrote to memory of 1712	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	31
PID 1212 wrote to memory of 1712	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	31
PID 1212 wrote to memory of 1712	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	31
PID 1212 wrote to memory of 1712	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	31
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1212 wrote to memory of 1540	1212	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	32
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33
PID 1540 wrote to memory of 908	1540	5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe	33

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\5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe
"C:\Users\Admin\AppData\Local\Temp\5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\arGJPDxqejOAVq.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1736
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\arGJPDxqejOAVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp658.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1200
- C:\Users\Admin\AppData\Local\Temp\5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe
  "C:\Users\Admin\AppData\Local\Temp\5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe"
  2⤵
  PID:1712
- C:\Users\Admin\AppData\Local\Temp\5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe
  "C:\Users\Admin\AppData\Local\Temp\5adfdecdb6a36f1923e0effdd948c8be0cfa51e27135777289024a398f55ac14.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1540
- - 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:908

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp658.tmp

Filesize
1KB

MD5
3f0f15646245c7bdda1ed245fb77b11d

SHA1
4aa306ca3eb655146b6b9e4636b96724feb97534

SHA256
56bcc9f1ebd297e97f1f165840c859f226a62cd179254f956b4e551c34a04d08

SHA512
636021c879f75b2160d06592d9310b51322971d7691bd4871991f119ab007fdc7c102f7e3974a236cfdb1e269d570679e9096165fe007b76d440266e2378b0c4

Download Submit
memory/908-85-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/908-83-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/908-80-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/908-78-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1212-58-0x00000000080E0000-0x000000000817C000-memory.dmp

Filesize
624KB

Download
memory/1212-63-0x0000000005DC0000-0x0000000005E06000-memory.dmp

Filesize
280KB

Download
memory/1212-55-0x0000000075E11000-0x0000000075E13000-memory.dmp

Filesize
8KB

Download
memory/1212-56-0x00000000004F0000-0x0000000000504000-memory.dmp

Filesize
80KB

Download
memory/1212-54-0x00000000001E0000-0x00000000002CA000-memory.dmp

Filesize
936KB

Download
memory/1212-57-0x0000000000510000-0x000000000051C000-memory.dmp

Filesize
48KB

Download
memory/1540-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1540-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1540-76-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1540-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1540-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1540-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1540-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1736-77-0x000000006E110000-0x000000006E6BB000-memory.dmp

Filesize
5.7MB

Download
memory/1736-87-0x000000006E110000-0x000000006E6BB000-memory.dmp

Filesize
5.7MB

Download