blustealer | a68672b1ebb95bb719b551cbc3b72c53d5e256004c519039dc02649ff166b4da

General

Target

SWIFT IMG_2022082__000021001.pdf.exe
Size

22KB
MD5

20a84bfdd16cd3e1b6849ea1ea9c4d0a
SHA1

66082f545e8c54c3574aa21c09cc2cafeddc6c59
SHA256

a68672b1ebb95bb719b551cbc3b72c53d5e256004c519039dc02649ff166b4da
SHA512

120d7792ccf28a54b59e62e7e592facd4c7b5247978b6224694aa9be53a36bfb9b258feee87148f750b44d8359b699acb6176f5e8bce9d302a7c1d17bb84e5c8
SSDEEP

192:2f+zZKZFq3WFjLpeBYY8zyfCCZtdT4NYHefn3Z2FT9TDvtAE230ZckEDt3ECJ:TzUZVFYBt8z3C2+Hef4ddBZA0Zva0C

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/1856-150-0x0000000000D90000-0x0000000000DAA000-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 IMG_2022082__000021001.pdf.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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

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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Sazjbvo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Iltgbh\\Sazjbvo.exe\""	SWIFT IMG_2022082__000021001.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
46	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3672 set thread context of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 4648 set thread context of 1856	4648	SWIFT IMG_2022082__000021001.pdf.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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4836	powershell.exe
4836	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4648	SWIFT IMG_2022082__000021001.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3672	SWIFT IMG_2022082__000021001.pdf.exe
Token: SeDebugPrivilege	4836	powershell.exe
Token: SeDebugPrivilege	1856	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4648	SWIFT IMG_2022082__000021001.pdf.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 4836	3672	SWIFT IMG_2022082__000021001.pdf.exe	82
PID 3672 wrote to memory of 4836	3672	SWIFT IMG_2022082__000021001.pdf.exe	82
PID 3672 wrote to memory of 4836	3672	SWIFT IMG_2022082__000021001.pdf.exe	82
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 3672 wrote to memory of 4648	3672	SWIFT IMG_2022082__000021001.pdf.exe	95
PID 4648 wrote to memory of 1856	4648	SWIFT IMG_2022082__000021001.pdf.exe	96
PID 4648 wrote to memory of 1856	4648	SWIFT IMG_2022082__000021001.pdf.exe	96
PID 4648 wrote to memory of 1856	4648	SWIFT IMG_2022082__000021001.pdf.exe	96
PID 4648 wrote to memory of 1856	4648	SWIFT IMG_2022082__000021001.pdf.exe	96
PID 4648 wrote to memory of 1856	4648	SWIFT IMG_2022082__000021001.pdf.exe	96

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 IMG_2022082__000021001.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.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:3672
- 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:4836
- C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4648
- - 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:1856

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/1856-151-0x0000000005D80000-0x0000000005E1C000-memory.dmp

Filesize
624KB

Download
memory/1856-150-0x0000000000D90000-0x0000000000DAA000-memory.dmp

Filesize
104KB

Download
memory/3672-133-0x0000000006140000-0x0000000006162000-memory.dmp

Filesize
136KB

Download
memory/3672-132-0x00000000007C0000-0x00000000007CC000-memory.dmp

Filesize
48KB

Download
memory/4648-152-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4648-148-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4648-145-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4648-143-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4836-136-0x0000000005390000-0x00000000059B8000-memory.dmp

Filesize
6.2MB

Download
memory/4836-141-0x00000000066D0000-0x00000000066EA000-memory.dmp

Filesize
104KB

Download
memory/4836-140-0x0000000007A20000-0x000000000809A000-memory.dmp

Filesize
6.5MB

Download
memory/4836-139-0x00000000061C0000-0x00000000061DE000-memory.dmp

Filesize
120KB

Download
memory/4836-138-0x0000000005BA0000-0x0000000005C06000-memory.dmp

Filesize
408KB

Download
memory/4836-137-0x0000000005B30000-0x0000000005B96000-memory.dmp

Filesize
408KB

Download
memory/4836-135-0x0000000004C00000-0x0000000004C36000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads