blustealer | 4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f

General

Target

4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
Size

871KB
MD5

48ed3a5b89df4c83f43c231d190c4726
SHA1

7acba69249c5081577c60d5e05c5b96ffc3bf1de
SHA256

4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f
SHA512

d1a89fa9fdbe13912a45a69084bd14a3ad593106b061e55c872d7985407e118da33741db81de4565b99d613db139bf3cd32c33ed015a73bf82582ed0d8cddc38
SSDEEP

6144:1Rlbcr0FdRmvct7YOjTZGN6O46h5iIWROT+e1L1ludK0INglez2YNnIkta8mhiKS:d3pz05iveBludK0EhNIkQ900pw3bK

Score

10^/10

blustealer stormkitty collection 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 4 IoCs

resource	yara_rule
behavioral1/memory/1072-86-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1072-84-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1072-82-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1072-81-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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 1012 set thread context of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1536 set thread context of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.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
952	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
2044	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	1072	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 2044	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	28
PID 1012 wrote to memory of 2044	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	28
PID 1012 wrote to memory of 2044	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	28
PID 1012 wrote to memory of 2044	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	28
PID 1012 wrote to memory of 952	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	30
PID 1012 wrote to memory of 952	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	30
PID 1012 wrote to memory of 952	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	30
PID 1012 wrote to memory of 952	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	30
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1012 wrote to memory of 1536	1012	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	32
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33
PID 1536 wrote to memory of 1072	1536	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
"C:\Users\Admin\AppData\Local\Temp\4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fDmOIVxv.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2044
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fDmOIVxv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp95BB.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:952
- C:\Users\Admin\AppData\Local\Temp\4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
  "C:\Users\Admin\AppData\Local\Temp\4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1536
- - 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:1072

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp95BB.tmp

Filesize
1KB

MD5
61c84f73c9be5fd0cf735f43eb536c23

SHA1
ecaf3dc8bb016ae8435ce0410defbdf99f218d50

SHA256
87c693c416476364f30feffc66ca69b392b9416c21f444fd2dfc7c4255160836

SHA512
140104b918c890ce519f85eff64c8c87d181b56291d3bd06da150bb534b61d6a47d385f7abb43bad6091123e3a1646a45e5987a77a3d06bfe3f8fca2c9d56510

Download Submit
memory/1012-64-0x0000000004F50000-0x0000000004F7C000-memory.dmp

Filesize
176KB

Download
memory/1012-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/1012-56-0x0000000000860000-0x000000000087A000-memory.dmp

Filesize
104KB

Download
memory/1012-57-0x0000000000970000-0x000000000097C000-memory.dmp

Filesize
48KB

Download
memory/1012-58-0x0000000005F60000-0x0000000005FE2000-memory.dmp

Filesize
520KB

Download
memory/1012-54-0x0000000001130000-0x0000000001210000-memory.dmp

Filesize
896KB

Download
memory/1072-79-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1072-86-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1072-81-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1072-84-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1536-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1536-70-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1536-77-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1536-73-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1536-66-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1536-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1536-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2044-63-0x000000006EE30000-0x000000006F3DB000-memory.dmp

Filesize
5.7MB

Download
memory/2044-78-0x000000006EE30000-0x000000006F3DB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads