blustealer | 8ba60bbd351c55d665279d38e77639cb301ffdacaab09ed66515e9af0387e615

Analysis

max time kernel
135s
max time network
106s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-09-2022 20:50

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General

Target

swift.exe
Size

714KB
MD5

3512514972b6f3d79491a5ded8617788
SHA1

ba6548c7bf1227b05278dc2372a91347d7d100c3
SHA256

fdeafb2bf6cc3d798d2fa099f3619d096f17a57b89172020922c2a63f48d8aeb
SHA512

d638dc0bbd6b81053ed9cd58b7a276801748586a6039371f1a039399e0794a97758011e7bec08bfe7ec5ed25ad229e3d0273cae3b152d37133bb5f9a7b336e18
SSDEEP

12288:a6HZX/QV280RF75ehGBEnuaDDhvJun2zro8b4p00zyIZPzHC2:aUGM80RZ5j8ucFRqQr1b5IVHC2

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

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/1908-80-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1908-81-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1908-83-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1908-85-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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
24	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 1812	2012	swift.exe	34
PID 1812 set thread context of 1908	1812	swift.exe	35

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
1936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2012	swift.exe
2012	swift.exe
1808	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	swift.exe
Token: SeDebugPrivilege	1808	powershell.exe
Token: SeDebugPrivilege	1908	AppLaunch.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2012	swift.exe
2012	swift.exe
1812	swift.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 1808	2012	swift.exe	29
PID 2012 wrote to memory of 1808	2012	swift.exe	29
PID 2012 wrote to memory of 1808	2012	swift.exe	29
PID 2012 wrote to memory of 1808	2012	swift.exe	29
PID 2012 wrote to memory of 1936	2012	swift.exe	31
PID 2012 wrote to memory of 1936	2012	swift.exe	31
PID 2012 wrote to memory of 1936	2012	swift.exe	31
PID 2012 wrote to memory of 1936	2012	swift.exe	31
PID 2012 wrote to memory of 1628	2012	swift.exe	33
PID 2012 wrote to memory of 1628	2012	swift.exe	33
PID 2012 wrote to memory of 1628	2012	swift.exe	33
PID 2012 wrote to memory of 1628	2012	swift.exe	33
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 2012 wrote to memory of 1812	2012	swift.exe	34
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35
PID 1812 wrote to memory of 1908	1812	swift.exe	35

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\swift.exe
"C:\Users\Admin\AppData\Local\Temp\swift.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZqJCnirrxQudpN.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1808
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZqJCnirrxQudpN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC0F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1936
- C:\Users\Admin\AppData\Local\Temp\swift.exe
  "C:\Users\Admin\AppData\Local\Temp\swift.exe"
  2⤵
  PID:1628
- C:\Users\Admin\AppData\Local\Temp\swift.exe
  "C:\Users\Admin\AppData\Local\Temp\swift.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - 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:1908

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEC0F.tmp

Filesize
1KB

MD5
d17f1a02b3da2c1a03481066bf7a4e74

SHA1
191263b172ba32a1b78944c786f1e7fc6bece9f1

SHA256
f9b893538f91a72da838bb5f4f2bb4bb27aacf69b7e2a7483f24764af148150c

SHA512
9503348b99c8418daf71b7f7310447560b6c20201d40ddbb8513c4505b2b6d39261bc772a2209fc057bd87f8038c0f6c255777de7b858ce699f261d47148ed26

Download Submit
memory/1808-88-0x000000006BEB0000-0x000000006C45B000-memory.dmp

Filesize
5.7MB

Download
memory/1812-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1812-89-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1812-87-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1812-73-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1812-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1812-66-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1812-68-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1908-85-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1908-83-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1908-80-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1908-78-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/2012-74-0x0000000004CB7000-0x0000000004CC8000-memory.dmp

Filesize
68KB

Download
memory/2012-56-0x0000000000720000-0x0000000000738000-memory.dmp

Filesize
96KB

Download
memory/2012-58-0x00000000021E0000-0x00000000021EC000-memory.dmp

Filesize
48KB

Download
memory/2012-64-0x0000000005E90000-0x0000000005EB8000-memory.dmp

Filesize
160KB

Download
memory/2012-54-0x00000000008B0000-0x0000000000968000-memory.dmp

Filesize
736KB

Download
memory/2012-57-0x0000000004CB7000-0x0000000004CC8000-memory.dmp

Filesize
68KB

Download
memory/2012-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

Filesize
8KB

Download
memory/2012-59-0x00000000084E0000-0x000000000855E000-memory.dmp

Filesize
504KB

Download