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 1 IoCs

resource	yara_rule
behavioral2/memory/4368-154-0x0000000000A20000-0x0000000000A3A000-memory.dmp	family_stormkitty

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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
49	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4064 set thread context of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4104 set thread context of 4368	4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	96

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	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
2388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
3844	powershell.exe
3844	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
Token: SeDebugPrivilege	3844	powershell.exe
Token: SeDebugPrivilege	4368	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4064 wrote to memory of 3844	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	88
PID 4064 wrote to memory of 3844	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	88
PID 4064 wrote to memory of 3844	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	88
PID 4064 wrote to memory of 2388	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	91
PID 4064 wrote to memory of 2388	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	91
PID 4064 wrote to memory of 2388	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	91
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4064 wrote to memory of 4104	4064	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	94
PID 4104 wrote to memory of 4368	4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	96
PID 4104 wrote to memory of 4368	4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	96
PID 4104 wrote to memory of 4368	4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	96
PID 4104 wrote to memory of 4368	4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	96
PID 4104 wrote to memory of 4368	4104	4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4064
- 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:3844
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fDmOIVxv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E2F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2388
- C:\Users\Admin\AppData\Local\Temp\4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe
  "C:\Users\Admin\AppData\Local\Temp\4a4ce6ec040bc9218e968e392a46a9e19380bf8be1bc7f989715e2d53770c77f.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4104
- - 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:4368

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

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2E2F.tmp

Filesize
1KB

MD5
ecc06b2a7e998325b980fc91bd773e28

SHA1
5b205cd230d68590577fe8f657678026305811d8

SHA256
f58c7cb306f5ff4849e112fe7bb8ef9becdcac397d7a3ceedefafa229829434f

SHA512
b6ebdd861b25367190d07822acc6917e42650056e50aa847148d254ba31b04a066287fd51f910d382a3cca706b697b979e59ef3d613d1d72711fd294ceaafb48

Download Submit
memory/3844-149-0x0000000004E40000-0x0000000004E62000-memory.dmp

Filesize
136KB

Download
memory/3844-159-0x0000000007100000-0x000000000711A000-memory.dmp

Filesize
104KB

Download
memory/3844-165-0x0000000007330000-0x0000000007338000-memory.dmp

Filesize
32KB

Download
memory/3844-164-0x0000000007460000-0x000000000747A000-memory.dmp

Filesize
104KB

Download
memory/3844-152-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

Filesize
120KB

Download
memory/3844-163-0x0000000007350000-0x000000000735E000-memory.dmp

Filesize
56KB

Download
memory/3844-162-0x0000000007380000-0x0000000007416000-memory.dmp

Filesize
600KB

Download
memory/3844-141-0x00000000024F0000-0x0000000002526000-memory.dmp

Filesize
216KB

Download
memory/3844-161-0x0000000007170000-0x000000000717A000-memory.dmp

Filesize
40KB

Download
memory/3844-158-0x0000000007750000-0x0000000007DCA000-memory.dmp

Filesize
6.5MB

Download
memory/3844-146-0x0000000005080000-0x00000000056A8000-memory.dmp

Filesize
6.2MB

Download
memory/3844-157-0x0000000006350000-0x000000000636E000-memory.dmp

Filesize
120KB

Download
memory/3844-156-0x0000000070370000-0x00000000703BC000-memory.dmp

Filesize
304KB

Download
memory/3844-150-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/3844-155-0x0000000006DE0000-0x0000000006E12000-memory.dmp

Filesize
200KB

Download
memory/4064-135-0x0000000003160000-0x000000000316A000-memory.dmp

Filesize
40KB

Download
memory/4064-137-0x00000000015D0000-0x0000000001636000-memory.dmp

Filesize
408KB

Download
memory/4064-136-0x00000000094C0000-0x000000000955C000-memory.dmp

Filesize
624KB

Download
memory/4064-132-0x0000000000C30000-0x0000000000D10000-memory.dmp

Filesize
896KB

Download
memory/4064-134-0x0000000005770000-0x0000000005802000-memory.dmp

Filesize
584KB

Download
memory/4064-133-0x0000000005C80000-0x0000000006224000-memory.dmp

Filesize
5.6MB

Download
memory/4104-143-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4104-145-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4104-160-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4104-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4368-154-0x0000000000A20000-0x0000000000A3A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads