blustealer | 91d4f5bc34ba71ca8044248ace62f835ae6007f02a12cb61c853ef980cf105fa

General

Target

02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
Size

1.0MB
MD5

82a1be67742da347df519c0c0b75ed87
SHA1

163e5d1758c7be66a6a3a35d2f9973d209383567
SHA256

02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd
SHA512

d2051aa0284e0ab9151417d05eafc037695c32d6bf67512b2c8155ecc303774bdc950c24a658fb88787c4f1c3f6ae8bb0bba2017d90129afcbf484f40baaa4a7
SSDEEP

12288:I5bIINzS9JAJgapke+yoaYRy6Wrq2vElGv9W:qbNzoJ0gakNy9cjWm2UGv

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5415235188:AAGqakDD6FZcw5LLX6hH5qVayV-1OGURlEo/sendMessage?chat_id=1372472614

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/4564-153-0x00000000004D0000-0x00000000004EA000-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	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
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

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
42	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4820 set thread context of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 1812 set thread context of 4564	1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	97

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
484	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
2364	powershell.exe
2364	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
Token: SeDebugPrivilege	2364	powershell.exe
Token: SeDebugPrivilege	4564	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4820 wrote to memory of 2364	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	92
PID 4820 wrote to memory of 2364	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	92
PID 4820 wrote to memory of 2364	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	92
PID 4820 wrote to memory of 484	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	94
PID 4820 wrote to memory of 484	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	94
PID 4820 wrote to memory of 484	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	94
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 4820 wrote to memory of 1812	4820	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	96
PID 1812 wrote to memory of 4564	1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	97
PID 1812 wrote to memory of 4564	1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	97
PID 1812 wrote to memory of 4564	1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	97
PID 1812 wrote to memory of 4564	1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	97
PID 1812 wrote to memory of 4564	1812	02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe	97

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\02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
"C:\Users\Admin\AppData\Local\Temp\02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fjuIjtcpvLma.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2364
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fjuIjtcpvLma" /XML "C:\Users\Admin\AppData\Local\Temp\tmp566D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:484
- C:\Users\Admin\AppData\Local\Temp\02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe
  "C:\Users\Admin\AppData\Local\Temp\02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1812
- - 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:4564

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\tmp566D.tmp

Filesize
1KB

MD5
16b6aef9fd2b3176be229d43983ccc72

SHA1
8991400ffd4fdf34ff3b875065a0e13b165dde39

SHA256
a75900d67b8a0d6a0fb47cd1a830891b903a11c9b583cede66c1dfc9068e0510

SHA512
2605577c6cc4db43d3341a2ca4c4a9425480ff75b72baca6a1f5bb100d61bb4e408390ba89d336b93d7689ac31a0425eed35f16f97a7dd86e022f84faebf25af

Download Submit
memory/1812-165-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1812-154-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1812-146-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1812-144-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2364-149-0x0000000005610000-0x0000000005632000-memory.dmp

Filesize
136KB

Download
memory/2364-161-0x0000000007BF0000-0x0000000007C86000-memory.dmp

Filesize
600KB

Download
memory/2364-143-0x0000000005880000-0x0000000005EA8000-memory.dmp

Filesize
6.2MB

Download
memory/2364-164-0x0000000007C90000-0x0000000007C98000-memory.dmp

Filesize
32KB

Download
memory/2364-163-0x0000000007CB0000-0x0000000007CCA000-memory.dmp

Filesize
104KB

Download
memory/2364-162-0x0000000007BA0000-0x0000000007BAE000-memory.dmp

Filesize
56KB

Download
memory/2364-158-0x0000000007FB0000-0x000000000862A000-memory.dmp

Filesize
6.5MB

Download
memory/2364-150-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/2364-152-0x0000000006660000-0x000000000667E000-memory.dmp

Filesize
120KB

Download
memory/2364-160-0x00000000079E0000-0x00000000079EA000-memory.dmp

Filesize
40KB

Download
memory/2364-140-0x0000000002CA0000-0x0000000002CD6000-memory.dmp

Filesize
216KB

Download
memory/2364-159-0x0000000007970000-0x000000000798A000-memory.dmp

Filesize
104KB

Download
memory/2364-155-0x0000000007630000-0x0000000007662000-memory.dmp

Filesize
200KB

Download
memory/2364-156-0x0000000070570000-0x00000000705BC000-memory.dmp

Filesize
304KB

Download
memory/2364-157-0x0000000006C30000-0x0000000006C4E000-memory.dmp

Filesize
120KB

Download
memory/4564-153-0x00000000004D0000-0x00000000004EA000-memory.dmp

Filesize
104KB

Download
memory/4820-134-0x0000000004D50000-0x0000000004DE2000-memory.dmp

Filesize
584KB

Download
memory/4820-132-0x00000000001A0000-0x00000000002AE000-memory.dmp

Filesize
1.1MB

Download
memory/4820-135-0x0000000004DF0000-0x0000000004DFA000-memory.dmp

Filesize
40KB

Download
memory/4820-136-0x00000000088B0000-0x000000000894C000-memory.dmp

Filesize
624KB

Download
memory/4820-137-0x0000000008BC0000-0x0000000008C26000-memory.dmp

Filesize
408KB

Download
memory/4820-133-0x0000000005300000-0x00000000058A4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads