blustealer | 5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02

General

Target

5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
Size

986KB
MD5

105955bc97408324ae104395d1f027bf
SHA1

a9b8d839c3f4d2c4cd20831127ae1d5b02ff8664
SHA256

5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02
SHA512

2ad552ad8272aea0161d0a212925e9fc9cbbb690cfb701bb332525cf1150c92344c355a2dc7fab9931338e5110295f31f520cdbf57ec390e24f4aec50be14d37
SSDEEP

12288:FnJSxRRBR7yXKBs8ypLpeYqktgNeBwyPX2c00QEhWT5MWwtr4veUCyK+zWkv:zwWXKBs5dQYqktE87/2cVQLFwR4veU

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

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 1 IoCs

resource	yara_rule
behavioral2/memory/4316-160-0x0000000000D40000-0x0000000000D5A000-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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
36	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2236 set thread context of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 4548 set thread context of 4316	4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.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 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
5080	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
3020	powershell.exe
3020	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
Token: SeDebugPrivilege	3020	powershell.exe
Token: SeDebugPrivilege	4316	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 3020	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	91
PID 2236 wrote to memory of 3020	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	91
PID 2236 wrote to memory of 3020	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	91
PID 2236 wrote to memory of 5080	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	93
PID 2236 wrote to memory of 5080	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	93
PID 2236 wrote to memory of 5080	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	93
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 2236 wrote to memory of 4548	2236	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	95
PID 4548 wrote to memory of 4316	4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	96
PID 4548 wrote to memory of 4316	4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	96
PID 4548 wrote to memory of 4316	4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	96
PID 4548 wrote to memory of 4316	4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	96
PID 4548 wrote to memory of 4316	4548	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
"C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bTCHuL.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3020
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bTCHuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp829D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:5080
- C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
  "C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4548
- - 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:4316

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\tmp829D.tmp

Filesize
1KB

MD5
512af9bb2df85495d9b6e4de3140f096

SHA1
53c4bebe89b5a60081f7fef9e282d4ab9e566566

SHA256
ed3de85569bdd75e2e4c952769ec9d89608d2c5c3633fd1ffbc8d2ca45307d18

SHA512
f42489ae907b7021ffffa7bb11ae6228a7be2bc354d2272014523cf329b5bb7d41d3a229e17edc0218c5db93cb8ea0f7c0d152459f603fd6172da74df5be7901

Download Submit
memory/2236-133-0x00000000078B0000-0x0000000007E54000-memory.dmp

Filesize
5.6MB

Download
memory/2236-134-0x00000000073A0000-0x0000000007432000-memory.dmp

Filesize
584KB

Download
memory/2236-135-0x0000000007310000-0x000000000731A000-memory.dmp

Filesize
40KB

Download
memory/2236-136-0x000000000ACD0000-0x000000000AD6C000-memory.dmp

Filesize
624KB

Download
memory/2236-137-0x000000000AFE0000-0x000000000B046000-memory.dmp

Filesize
408KB

Download
memory/2236-132-0x00000000003B0000-0x00000000004AC000-memory.dmp

Filesize
1008KB

Download
memory/3020-156-0x0000000007CB0000-0x000000000832A000-memory.dmp

Filesize
6.5MB

Download
memory/3020-148-0x00000000054A0000-0x00000000054C2000-memory.dmp

Filesize
136KB

Download
memory/3020-164-0x0000000007990000-0x0000000007998000-memory.dmp

Filesize
32KB

Download
memory/3020-143-0x00000000055B0000-0x0000000005BD8000-memory.dmp

Filesize
6.2MB

Download
memory/3020-163-0x00000000079B0000-0x00000000079CA000-memory.dmp

Filesize
104KB

Download
memory/3020-162-0x00000000078A0000-0x00000000078AE000-memory.dmp

Filesize
56KB

Download
memory/3020-161-0x00000000078F0000-0x0000000007986000-memory.dmp

Filesize
600KB

Download
memory/3020-140-0x0000000004D90000-0x0000000004DC6000-memory.dmp

Filesize
216KB

Download
memory/3020-149-0x0000000005C50000-0x0000000005CB6000-memory.dmp

Filesize
408KB

Download
memory/3020-152-0x0000000006340000-0x000000000635E000-memory.dmp

Filesize
120KB

Download
memory/3020-159-0x00000000076E0000-0x00000000076EA000-memory.dmp

Filesize
40KB

Download
memory/3020-153-0x0000000006930000-0x0000000006962000-memory.dmp

Filesize
200KB

Download
memory/3020-154-0x0000000070E40000-0x0000000070E8C000-memory.dmp

Filesize
304KB

Download
memory/3020-155-0x0000000006910000-0x000000000692E000-memory.dmp

Filesize
120KB

Download
memory/3020-157-0x0000000007670000-0x000000000768A000-memory.dmp

Filesize
104KB

Download
memory/4316-160-0x0000000000D40000-0x0000000000D5A000-memory.dmp

Filesize
104KB

Download
memory/4548-151-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4548-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4548-144-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4548-165-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads