blustealer | 7cde481029d0f331c932ffb79f04c8113ab6d5b36bbd4cc18f4c54b086910b58

Resubmissions

20-12-2022 23:15

221220-28xl1sbc85 10

20-12-2022 06:45

221220-hh292aca3v 10

Analysis

max time kernel
22s
max time network
23s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
20-12-2022 23:15

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General

Target

FACTURA.exe
Size

164KB
MD5

ed569d6f146f9101293b60dee2e726f6
SHA1

24a5c1579b090e1f8c9a5ff128f9545542fa8a69
SHA256

7cde481029d0f331c932ffb79f04c8113ab6d5b36bbd4cc18f4c54b086910b58
SHA512

36820914cd1605f058a97ecaf2ce5af808648a533abcbb3d5d567f9fc4978d6acc056d28eb629299785b6064481b74f760744c6d8acefb05d8ddb8de3edea974
SSDEEP

3072:DGpmGTuaBefnv1TkuFDMyDGdV0j/uwmyJ+aXE/8brg0TKC0gDm6:qLuaQfv1TkuFDMyD6V0zusJRklI

Score

10^/10

blustealer stormkitty spyware stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

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 2 IoCs

resource	yara_rule
behavioral1/memory/4144-161-0x00000000009E0000-0x00000000009FA000-memory.dmp	family_stormkitty
behavioral1/memory/4144-162-0x00000000009F4F6E-mapping.dmp	family_stormkitty

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

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
1	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5004 set thread context of 1924	5004	FACTURA.exe	66
PID 1924 set thread context of 4144	1924	Caspol.exe	67

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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4144	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1924	Caspol.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 5004 wrote to memory of 1924	5004	FACTURA.exe	66
PID 1924 wrote to memory of 4144	1924	Caspol.exe	67
PID 1924 wrote to memory of 4144	1924	Caspol.exe	67
PID 1924 wrote to memory of 4144	1924	Caspol.exe	67
PID 1924 wrote to memory of 4144	1924	Caspol.exe	67
PID 1924 wrote to memory of 4144	1924	Caspol.exe	67

C:\Users\Admin\AppData\Local\Temp\FACTURA.exe
"C:\Users\Admin\AppData\Local\Temp\FACTURA.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1924
- - 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:4144

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1924-117-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1924-119-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-120-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-121-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-122-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-123-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-125-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-127-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-128-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-129-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-130-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-131-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-132-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-133-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-134-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-135-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-136-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-137-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-139-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-140-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-138-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-141-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-142-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-143-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-144-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-145-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-146-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-148-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-149-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-151-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-152-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-153-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-154-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-155-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-156-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-157-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-158-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-159-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-160-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/1924-246-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4144-161-0x00000000009E0000-0x00000000009FA000-memory.dmp

Filesize
104KB

Download
memory/4144-163-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-164-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-165-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-166-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-167-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-169-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-170-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-172-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-173-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-174-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-175-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-176-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-177-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-178-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-179-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-180-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-181-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-182-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-184-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-183-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-185-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-186-0x0000000077BE0000-0x0000000077D6E000-memory.dmp

Filesize
1.6MB

Download
memory/4144-208-0x0000000009120000-0x0000000009186000-memory.dmp

Filesize
408KB

Download
memory/5004-115-0x000001BDFD4C0000-0x000001BDFD4E8000-memory.dmp

Filesize
160KB

Download
memory/5004-116-0x000001BDFD6E0000-0x000001BDFD6EA000-memory.dmp

Filesize
40KB

Download