blustealer | e9a11e6b848b855b9de1d62c8c5d75bb5b850b9e93b2d9d49ee9422950eff9ce

General

Target

SWIFT_IMG_20220901_00078666587900.pdf.exe
Size

18KB
MD5

3ed262a5efb4d40d672c223b158a6b8a
SHA1

8cfdcaab8fa52ed91f52fadef21a8489d24e5011
SHA256

e9a11e6b848b855b9de1d62c8c5d75bb5b850b9e93b2d9d49ee9422950eff9ce
SHA512

bca13e92ef2b67556df52cfa4f187be5c7bf8c4ea8d4799a5729dd680031f42c4e648aa47db49798785797dbd69f9f68f9b49165b16c62f02ea73435f1f6f42d
SSDEEP

384:XasMoP+isALT5me9CI/euqrnHaFVoJagj6JKA4Q27u1wGuhGm:L3sE9LPdzNsXvuuGIG

Score

10^/10

blustealer stormkitty collection persistence 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 1 IoCs

resource	yara_rule
behavioral2/memory/2204-150-0x00000000005B0000-0x00000000005CA000-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	SWIFT_IMG_20220901_00078666587900.pdf.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bvsvinzgo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Kvejhuu\\Bvsvinzgo.exe\""	SWIFT_IMG_20220901_00078666587900.pdf.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
8	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 5040 set thread context of 2204	5040	SWIFT_IMG_20220901_00078666587900.pdf.exe	81

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3680	powershell.exe
3680	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe
Token: SeDebugPrivilege	3680	powershell.exe
Token: SeDebugPrivilege	2204	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5040	SWIFT_IMG_20220901_00078666587900.pdf.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 3680	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	78
PID 3036 wrote to memory of 3680	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	78
PID 3036 wrote to memory of 3680	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	78
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 3036 wrote to memory of 5040	3036	SWIFT_IMG_20220901_00078666587900.pdf.exe	80
PID 5040 wrote to memory of 2204	5040	SWIFT_IMG_20220901_00078666587900.pdf.exe	81
PID 5040 wrote to memory of 2204	5040	SWIFT_IMG_20220901_00078666587900.pdf.exe	81
PID 5040 wrote to memory of 2204	5040	SWIFT_IMG_20220901_00078666587900.pdf.exe	81
PID 5040 wrote to memory of 2204	5040	SWIFT_IMG_20220901_00078666587900.pdf.exe	81
PID 5040 wrote to memory of 2204	5040	SWIFT_IMG_20220901_00078666587900.pdf.exe	81

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\SWIFT_IMG_20220901_00078666587900.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT_IMG_20220901_00078666587900.pdf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3680
- C:\Users\Admin\AppData\Local\Temp\SWIFT_IMG_20220901_00078666587900.pdf.exe
  C:\Users\Admin\AppData\Local\Temp\SWIFT_IMG_20220901_00078666587900.pdf.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5040
- - 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:2204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

memory/2204-151-0x00000000052B0000-0x000000000534C000-memory.dmp

Filesize
624KB

Download
memory/2204-150-0x00000000005B0000-0x00000000005CA000-memory.dmp

Filesize
104KB

Download
memory/3036-132-0x0000000000C70000-0x0000000000C7A000-memory.dmp

Filesize
40KB

Download
memory/3036-133-0x0000000006540000-0x0000000006562000-memory.dmp

Filesize
136KB

Download
memory/3680-140-0x0000000007740000-0x0000000007DBA000-memory.dmp

Filesize
6.5MB

Download
memory/3680-138-0x0000000005B10000-0x0000000005B76000-memory.dmp

Filesize
408KB

Download
memory/3680-139-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/3680-137-0x00000000051E0000-0x0000000005246000-memory.dmp

Filesize
408KB

Download
memory/3680-141-0x00000000065F0000-0x000000000660A000-memory.dmp

Filesize
104KB

Download
memory/3680-136-0x00000000053E0000-0x0000000005A08000-memory.dmp

Filesize
6.2MB

Download
memory/3680-135-0x0000000002B30000-0x0000000002B66000-memory.dmp

Filesize
216KB

Download
memory/5040-143-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/5040-145-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/5040-148-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/5040-152-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads