blustealer | 6899dd99687066cc8f69608b5a8dfbc513609eb6232600133ebd23907fced8bc

General

Target

swift.exe
Size

845KB
MD5

30044dde3d49f05feb2da0947e8e6146
SHA1

679429fbaab7148392d7c5c332f668aeb8a77aaf
SHA256

6899dd99687066cc8f69608b5a8dfbc513609eb6232600133ebd23907fced8bc
SHA512

bf1dd6f9cabae31489da9ed746a556aa4389aa01a9e715f2eb0d8242714f6863ab42e8585aa25450101f37982ce7ea6f4dede339401b3d8eaf2dee7ac4b90e95
SSDEEP

24576:U3rnaj5LpegjaQzlfx/yxfFFZNYgXWsDcWI:mw5LpDDlpaxfHYO/D

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 1 IoCs

resource	yara_rule
behavioral2/memory/1460-153-0x0000000000B60000-0x0000000000B7A000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	swift.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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
46	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5004 set thread context of 1908	5004	swift.exe	97
PID 1908 set thread context of 1460	1908	swift.exe	99

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
3952	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2296	powershell.exe
2296	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	powershell.exe
Token: SeDebugPrivilege	1460	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1908	swift.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 2296	5004	swift.exe	93
PID 5004 wrote to memory of 2296	5004	swift.exe	93
PID 5004 wrote to memory of 2296	5004	swift.exe	93
PID 5004 wrote to memory of 3952	5004	swift.exe	94
PID 5004 wrote to memory of 3952	5004	swift.exe	94
PID 5004 wrote to memory of 3952	5004	swift.exe	94
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 5004 wrote to memory of 1908	5004	swift.exe	97
PID 1908 wrote to memory of 1460	1908	swift.exe	99
PID 1908 wrote to memory of 1460	1908	swift.exe	99
PID 1908 wrote to memory of 1460	1908	swift.exe	99
PID 1908 wrote to memory of 1460	1908	swift.exe	99
PID 1908 wrote to memory of 1460	1908	swift.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qWTIsUzw.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2296
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qWTIsUzw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp37E8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3952
- 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:1908
- - 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:1460

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\tmp37E8.tmp

Filesize
1KB

MD5
3d30d97510648823eac4dacb6832cc2e

SHA1
1960c78af65b1c9714fd71dbc917fdc6137935f4

SHA256
aaee0bbc17a135b952da1f2534beee49bca0b25cfebe8bbb66123ab2c64b3c99

SHA512
f1c2822ada2201efdef5cd2e5786818363294c1627ae20c4a01dd97779d027c45eea575fc50d50b9a80962c3e8df71a44028698f4be2d4756fb1df5a906e1edf

Download Submit
memory/1460-153-0x0000000000B60000-0x0000000000B7A000-memory.dmp

Filesize
104KB

Download
memory/1908-165-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1908-151-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1908-145-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1908-143-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2296-149-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/2296-159-0x0000000007960000-0x000000000797A000-memory.dmp

Filesize
104KB

Download
memory/2296-140-0x0000000002D70000-0x0000000002DA6000-memory.dmp

Filesize
216KB

Download
memory/2296-164-0x0000000007C80000-0x0000000007C88000-memory.dmp

Filesize
32KB

Download
memory/2296-148-0x00000000056C0000-0x00000000056E2000-memory.dmp

Filesize
136KB

Download
memory/2296-163-0x0000000007CA0000-0x0000000007CBA000-memory.dmp

Filesize
104KB

Download
memory/2296-150-0x0000000006060000-0x00000000060C6000-memory.dmp

Filesize
408KB

Download
memory/2296-162-0x0000000007B90000-0x0000000007B9E000-memory.dmp

Filesize
56KB

Download
memory/2296-161-0x0000000007BE0000-0x0000000007C76000-memory.dmp

Filesize
600KB

Download
memory/2296-160-0x00000000079D0000-0x00000000079DA000-memory.dmp

Filesize
40KB

Download
memory/2296-154-0x0000000006640000-0x000000000665E000-memory.dmp

Filesize
120KB

Download
memory/2296-155-0x0000000007610000-0x0000000007642000-memory.dmp

Filesize
200KB

Download
memory/2296-156-0x00000000702C0000-0x000000007030C000-memory.dmp

Filesize
304KB

Download
memory/2296-157-0x0000000006B90000-0x0000000006BAE000-memory.dmp

Filesize
120KB

Download
memory/2296-158-0x0000000007FA0000-0x000000000861A000-memory.dmp

Filesize
6.5MB

Download
memory/2296-141-0x0000000005A30000-0x0000000006058000-memory.dmp

Filesize
6.2MB

Download
memory/5004-134-0x0000000004B40000-0x0000000004BD2000-memory.dmp

Filesize
584KB

Download
memory/5004-135-0x0000000004AF0000-0x0000000004AFA000-memory.dmp

Filesize
40KB

Download
memory/5004-136-0x00000000085E0000-0x000000000867C000-memory.dmp

Filesize
624KB

Download
memory/5004-132-0x0000000000080000-0x000000000015A000-memory.dmp

Filesize
872KB

Download
memory/5004-133-0x0000000005050000-0x00000000055F4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads