blustealer | 5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02

Analysis

max time kernel
102s
max time network
100s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20-10-2022 15:07

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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

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/1948-79-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/1948-80-0x00000000000E4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1948-82-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/1948-84-0x00000000000D0000-0x00000000000EA000-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 288 set thread context of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 1892 set thread context of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34

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
1736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
956	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
Token: SeDebugPrivilege	956	powershell.exe
Token: SeDebugPrivilege	1948	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 288 wrote to memory of 956	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	28
PID 288 wrote to memory of 956	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	28
PID 288 wrote to memory of 956	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	28
PID 288 wrote to memory of 956	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	28
PID 288 wrote to memory of 1736	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	30
PID 288 wrote to memory of 1736	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	30
PID 288 wrote to memory of 1736	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	30
PID 288 wrote to memory of 1736	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	30
PID 288 wrote to memory of 524	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	32
PID 288 wrote to memory of 524	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	32
PID 288 wrote to memory of 524	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	32
PID 288 wrote to memory of 524	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	32
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 288 wrote to memory of 1892	288	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	33
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34
PID 1892 wrote to memory of 1948	1892	5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe	34

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\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
"C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:288
- 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:956
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bTCHuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB942.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1736
- C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
  "C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe"
  2⤵
  PID:524
- C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe
  "C:\Users\Admin\AppData\Local\Temp\5496c892434815b96f2e87625ea81ee5fd67af10a3416f84d1cf74da03d23b02.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1892
- - 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:1948

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\tmpB942.tmp

Filesize
1KB

MD5
3f3edb9dd09676a766dc212206e83e38

SHA1
f0f194b690dcafbb3220641f21c4d9fc82514b5d

SHA256
c374900417ad7902a0f8738f06a6b91846c069dda61fc3999b0f2acc9106ab53

SHA512
aea4bb8baa4cbe50c6513d4883e1a1ba3beac2fc1dc4a47abdbe639d230d7f0066587ad35c87ffd69722a50225021cc94637da235f51ed236daadade13f29527

Download Submit
memory/288-54-0x0000000000250000-0x000000000034C000-memory.dmp

Filesize
1008KB

Download
memory/288-55-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/288-56-0x00000000021A0000-0x00000000021BC000-memory.dmp

Filesize
112KB

Download
memory/288-57-0x00000000005F0000-0x00000000005FC000-memory.dmp

Filesize
48KB

Download
memory/288-58-0x00000000080B0000-0x0000000008132000-memory.dmp

Filesize
520KB

Download
memory/288-63-0x00000000075F0000-0x000000000761C000-memory.dmp

Filesize
176KB

Download
memory/956-64-0x000000006E8A0000-0x000000006EE4B000-memory.dmp

Filesize
5.7MB

Download
memory/956-87-0x000000006E8A0000-0x000000006EE4B000-memory.dmp

Filesize
5.7MB

Download
memory/1892-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1892-66-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1892-70-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1892-73-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1892-86-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1892-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1892-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1948-77-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1948-79-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1948-82-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1948-84-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download