55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a

Analysis

max time kernel
134s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
10-03-2022 17:16

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General

Target

55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a.exe
Size

3.0MB
MD5

09fb8646753f7041cb0dc124b3c571cf
SHA1

d41f962c8b308802635a446d1637a1316be54da1
SHA256

55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a
SHA512

7e0bc327c63acfc77c4276b6e7cffdd6514a4512fe76ebed360c629d94511f20dd0368c6220a21c40e1bb64b53e9a86ccb971a4c38c5cdf813a431716b15a536

Score

9^/10

spyware stealer upx

Malware Config

Signatures

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/files/0x000300000000072f-149.dat	WebBrowserPassView
behavioral2/files/0x000300000000072f-150.dat	WebBrowserPassView

Nirsoft 6 IoCs

resource	yara_rule
behavioral2/files/0x000300000000072f-149.dat	Nirsoft
behavioral2/files/0x000300000000072f-150.dat	Nirsoft
behavioral2/files/0x0003000000000729-158.dat	Nirsoft
behavioral2/files/0x0003000000000729-159.dat	Nirsoft
behavioral2/files/0x000300000000072d-164.dat	Nirsoft
behavioral2/files/0x000300000000072d-165.dat	Nirsoft

Executes dropped EXE 6 IoCs

pid	Process
4848	RtkBtManServ.exe
4780	snuvcdsm.exe
1272	winhlp32.exe
1376	splwow64.exe
4764	hh.exe
680	xwizard.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0003000000000725-154.dat	upx
behavioral2/files/0x0003000000000725-155.dat	upx
behavioral2/files/0x000300000000072b-157.dat	upx
behavioral2/files/0x000300000000072b-156.dat	upx

Checks computer location settings 2 TTPs 5 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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	RtkBtManServ.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	WScript.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	api64.ipify.org
11	api64.ipify.org

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings	RtkBtManServ.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4780	snuvcdsm.exe
4780	snuvcdsm.exe
4780	snuvcdsm.exe
4780	snuvcdsm.exe
4764	hh.exe
4764	hh.exe
680	xwizard.exe
680	xwizard.exe
680	xwizard.exe
680	xwizard.exe
680	xwizard.exe
680	xwizard.exe
680	xwizard.exe
680	xwizard.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	RtkBtManServ.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 4848	1656	55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a.exe	81
PID 1656 wrote to memory of 4848	1656	55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a.exe	81
PID 4848 wrote to memory of 4584	4848	RtkBtManServ.exe	82
PID 4848 wrote to memory of 4584	4848	RtkBtManServ.exe	82
PID 4584 wrote to memory of 2236	4584	WScript.exe	83
PID 4584 wrote to memory of 2236	4584	WScript.exe	83
PID 2236 wrote to memory of 4780	2236	cmd.exe	85
PID 2236 wrote to memory of 4780	2236	cmd.exe	85
PID 2236 wrote to memory of 4780	2236	cmd.exe	85
PID 4848 wrote to memory of 3972	4848	RtkBtManServ.exe	86
PID 4848 wrote to memory of 3972	4848	RtkBtManServ.exe	86
PID 3972 wrote to memory of 764	3972	WScript.exe	87
PID 3972 wrote to memory of 764	3972	WScript.exe	87
PID 764 wrote to memory of 1272	764	cmd.exe	89
PID 764 wrote to memory of 1272	764	cmd.exe	89
PID 764 wrote to memory of 1272	764	cmd.exe	89
PID 764 wrote to memory of 1376	764	cmd.exe	91
PID 764 wrote to memory of 1376	764	cmd.exe	91
PID 764 wrote to memory of 1376	764	cmd.exe	91
PID 764 wrote to memory of 4764	764	cmd.exe	90
PID 764 wrote to memory of 4764	764	cmd.exe	90
PID 764 wrote to memory of 4764	764	cmd.exe	90
PID 4848 wrote to memory of 2336	4848	RtkBtManServ.exe	92
PID 4848 wrote to memory of 2336	4848	RtkBtManServ.exe	92
PID 2336 wrote to memory of 4000	2336	WScript.exe	93
PID 2336 wrote to memory of 4000	2336	WScript.exe	93
PID 4000 wrote to memory of 680	4000	cmd.exe	95
PID 4000 wrote to memory of 680	4000	cmd.exe	95
PID 4000 wrote to memory of 680	4000	cmd.exe	95
PID 4848 wrote to memory of 5112	4848	RtkBtManServ.exe	96
PID 4848 wrote to memory of 5112	4848	RtkBtManServ.exe	96
PID 5112 wrote to memory of 1692	5112	cmd.exe	98
PID 5112 wrote to memory of 1692	5112	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a.exe
"C:\Users\Admin\AppData\Local\Temp\55e0722ff82fa927a04cb6911c3726b78e6b892d400753d853d0ddbc7dba4b2a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe
  "C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe" ZhXl39BlhP84+Y4kurA8wpehxxqA0X22IMYZ6Vpiqs4iWQts1PND+kGJ4xdmGirFtT5W3OXFMbjE8CmdHgtOm0xo8eWTYs60ZjZMZYNO9Oj+IEZX5hTZz71kfTdlEjihNmMmWELE++ykkeW58BqUkHKYnClrsLhUECbONhhqWho=
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4584
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c compile.bat
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2236
    - - C:\Users\Admin\AppData\Local\Temp\snuvcdsm.exe
        
        C:\Users\Admin\AppData\Local\Temp\snuvcdsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\Admin_Passwords.txt"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        
        PID:4780
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:3972
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c compile.bat
      4⤵
      Suspicious use of WriteProcessMemory
      PID:764
    - - C:\Users\Admin\AppData\Local\Temp\winhlp32.exe
        
        C:\Users\Admin\AppData\Local\Temp\winhlp32.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies1"
        5⤵
        Executes dropped EXE
        
        PID:1272
    - - C:\Users\Admin\AppData\Local\Temp\hh.exe
        
        C:\Users\Admin\AppData\Local\Temp\hh.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies3"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        
        PID:4764
    - - C:\Users\Admin\AppData\Local\Temp\splwow64.exe
        
        C:\Users\Admin\AppData\Local\Temp\splwow64.exe /stext "C:\Users\Admin\AppData\Local\Temp\Cookies2"
        5⤵
        Executes dropped EXE
        
        PID:1376
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\compile.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c compile.bat
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4000
    - - C:\Users\Admin\AppData\Local\Temp\xwizard.exe
        
        C:\Users\Admin\AppData\Local\Temp\xwizard.exe /stext "C:\Users\Admin\AppData\Local\Temp\Admin_History.txt"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        
        PID:680
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\RtkBtManServ.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5112
  - - C:\Windows\system32\choice.exe
      choice /C Y /N /D Y /T 3
      4⤵
      PID:1692

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1656-135-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/1656-134-0x0000000000370000-0x000000000066C000-memory.dmp

Filesize
3.0MB

Download
memory/1656-130-0x0000000000370000-0x000000000066C000-memory.dmp

Filesize
3.0MB

Download
memory/1656-131-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1656-132-0x0000000005DD0000-0x0000000006374000-memory.dmp

Filesize
5.6MB

Download
memory/1656-133-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/4848-138-0x00000181EB1F0000-0x00000181EB4CA000-memory.dmp

Filesize
2.9MB

Download
memory/4848-141-0x00000181ED280000-0x00000181ED282000-memory.dmp

Filesize
8KB

Download
memory/4848-140-0x00000181EEFA0000-0x00000181EF016000-memory.dmp

Filesize
472KB

Download
memory/4848-146-0x00000181EF130000-0x00000181EF14E000-memory.dmp

Filesize
120KB

Download
memory/4848-143-0x00000181ED240000-0x00000181ED262000-memory.dmp

Filesize
136KB

Download
memory/4848-144-0x00000181ED2B0000-0x00000181ED2CA000-memory.dmp

Filesize
104KB

Download
memory/4848-139-0x00007FFF38300000-0x00007FFF38DC1000-memory.dmp

Filesize
10.8MB

Download
memory/4848-145-0x00000181ED290000-0x00000181ED298000-memory.dmp

Filesize
32KB

Download