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 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/4008-150-0x0000000000680000-0x000000000069A000-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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	SWIFT_IMG_20220901_00078666587900.pdf.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-1-5-21-2295526160-1155304984-640977766-1000\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
97	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2412 set thread context of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 3108 set thread context of 4008	3108	SWIFT_IMG_20220901_00078666587900.pdf.exe	105

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 4 IoCs

pid	Process
2712	powershell.exe
2712	powershell.exe
2412	SWIFT_IMG_20220901_00078666587900.pdf.exe
2412	SWIFT_IMG_20220901_00078666587900.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	4008	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3108	SWIFT_IMG_20220901_00078666587900.pdf.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2712	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	101
PID 2412 wrote to memory of 2712	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	101
PID 2412 wrote to memory of 2712	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	101
PID 2412 wrote to memory of 3552	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	103
PID 2412 wrote to memory of 3552	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	103
PID 2412 wrote to memory of 3552	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	103
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 2412 wrote to memory of 3108	2412	SWIFT_IMG_20220901_00078666587900.pdf.exe	104
PID 3108 wrote to memory of 4008	3108	SWIFT_IMG_20220901_00078666587900.pdf.exe	105
PID 3108 wrote to memory of 4008	3108	SWIFT_IMG_20220901_00078666587900.pdf.exe	105
PID 3108 wrote to memory of 4008	3108	SWIFT_IMG_20220901_00078666587900.pdf.exe	105
PID 3108 wrote to memory of 4008	3108	SWIFT_IMG_20220901_00078666587900.pdf.exe	105
PID 3108 wrote to memory of 4008	3108	SWIFT_IMG_20220901_00078666587900.pdf.exe	105

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412
- 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:2712
- 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⤵
  PID:3552
- 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:3108
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:4008

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

Command and Control

Exfiltration

Impact

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Downloads

memory/2412-132-0x0000000000E50000-0x0000000000E5A000-memory.dmp

Filesize
40KB

Download
memory/2412-133-0x0000000006450000-0x0000000006472000-memory.dmp

Filesize
136KB

Download
memory/2712-140-0x0000000007990000-0x000000000800A000-memory.dmp

Filesize
6.5MB

Download
memory/2712-141-0x0000000006630000-0x000000000664A000-memory.dmp

Filesize
104KB

Download
memory/2712-136-0x0000000005340000-0x0000000005968000-memory.dmp

Filesize
6.2MB

Download
memory/2712-137-0x0000000005A60000-0x0000000005AC6000-memory.dmp

Filesize
408KB

Download
memory/2712-138-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Filesize
408KB

Download
memory/2712-139-0x0000000006130000-0x000000000614E000-memory.dmp

Filesize
120KB

Download
memory/2712-135-0x0000000004B70000-0x0000000004BA6000-memory.dmp

Filesize
216KB

Download
memory/3108-144-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3108-146-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3108-151-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3108-152-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4008-150-0x0000000000680000-0x000000000069A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads