a2d3d6430f6775951cf988d960cfae4093d7a1e4d0f684ddfffaf4599ace9a71

Resubmissions

11-11-2024 03:14

241111-dreswavmgp 10

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-11-2024 03:14

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General

Target

VPN/VyprVPN.exe
Size

1.6MB
MD5

f1d5f022e71b8bc9e3241fbb72e87be2
SHA1

1b8abac6f9ffc3571b14c68ae1bc5e7568b4106c
SHA256

08fb58bfaee81d99cbb71bf71ba8f2ab4f107563c5b0c3f20484d096b337e50d
SHA512

f16130958a3ff33b21623881cbdeec018dd031b4aeb01bbb676c4bdeb1ec1d4f7d312efab48b4125eaaf6ea1c8b0aa4e037b1959af1f10c2a55fbc2da9f3924f
SSDEEP

24576:nTadGsNY1i8fWCsSpqq5M0bOk61uyG2CWm3U9X+Y0ttcN0sH2U9:nsGsm1qSp/MzRuI19X+Y0w39

Score

10^/10

discovery persistence spyware stealer

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

Clipper.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\WinService.exe"	Clipper.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\WinService.exe"	Clipper.exe

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

Processes:

1111.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Control Panel\International\Geo\Nation 1111.exe
Executes dropped EXE 6 IoCs

Processes:

joinResult.exeVyprVPN.exe1111.exeClipper.exeWinService.exeWinService.exe

pid process

1872 joinResult.exe
1640 VyprVPN.exe
2720 1111.exe
2832 Clipper.exe
2964 WinService.exe
2288 WinService.exe
Loads dropped DLL 6 IoCs

Processes:

VyprVPN.exejoinResult.exe

pid process

1628 VyprVPN.exe
1628 VyprVPN.exe
1628 VyprVPN.exe
1872 joinResult.exe
1872 joinResult.exe
1872 joinResult.exe
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

Processes:

1111.exe

pid process

2720 1111.exe
2720 1111.exe
2720 1111.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Control Panel\International\Geo\Nation	1111.exe

pid	process
1872	joinResult.exe
1640	VyprVPN.exe
2720	1111.exe
2832	Clipper.exe
2964	WinService.exe
2288	WinService.exe

pid	process
1628	VyprVPN.exe
1628	VyprVPN.exe
1628	VyprVPN.exe
1872	joinResult.exe
1872	joinResult.exe
1872	joinResult.exe

pid	process
2720	1111.exe
2720	1111.exe
2720	1111.exe

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

PING.EXEVyprVPN.exejoinResult.exeVyprVPN.exe1111.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VyprVPN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	joinResult.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VyprVPN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1111.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
discovery

Internet Connection Discovery
T1016.001

Processes:

PING.EXEcmd.exe

pid process

1148 PING.EXE
1912 cmd.exe

pid	process
1148	PING.EXE
1912	cmd.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\1337\joinResult.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\1337\joinResult.exe	nsis_installer_2

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1148 PING.EXE
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2900 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

1111.exe

pid process

2720 1111.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

VyprVPN.exe

pid process

1640 VyprVPN.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Clipper.exeWinService.exeWinService.exe

description pid process

Token: SeDebugPrivilege 2832 Clipper.exe
Token: SeDebugPrivilege 2964 WinService.exe
Token: SeDebugPrivilege 2288 WinService.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

1111.exe

pid process

2720 1111.exe

pid	process
1148	PING.EXE

pid	process
2900	schtasks.exe

pid	process
2720	1111.exe

pid	process
1640	VyprVPN.exe

description	pid	process
Token: SeDebugPrivilege	2832	Clipper.exe
Token: SeDebugPrivilege	2964	WinService.exe
Token: SeDebugPrivilege	2288	WinService.exe

pid	process
2720	1111.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

VyprVPN.exejoinResult.exeClipper.exe1111.execmd.exetaskeng.exe

description	pid	process	target process
PID 1628 wrote to memory of 1872	1628	VyprVPN.exe	joinResult.exe
PID 1628 wrote to memory of 1872	1628	VyprVPN.exe	joinResult.exe
PID 1628 wrote to memory of 1872	1628	VyprVPN.exe	joinResult.exe
PID 1628 wrote to memory of 1872	1628	VyprVPN.exe	joinResult.exe
PID 1628 wrote to memory of 1640	1628	VyprVPN.exe	VyprVPN.exe
PID 1628 wrote to memory of 1640	1628	VyprVPN.exe	VyprVPN.exe
PID 1628 wrote to memory of 1640	1628	VyprVPN.exe	VyprVPN.exe
PID 1628 wrote to memory of 1640	1628	VyprVPN.exe	VyprVPN.exe
PID 1872 wrote to memory of 2720	1872	joinResult.exe	1111.exe
PID 1872 wrote to memory of 2720	1872	joinResult.exe	1111.exe
PID 1872 wrote to memory of 2720	1872	joinResult.exe	1111.exe
PID 1872 wrote to memory of 2720	1872	joinResult.exe	1111.exe
PID 1872 wrote to memory of 2832	1872	joinResult.exe	Clipper.exe
PID 1872 wrote to memory of 2832	1872	joinResult.exe	Clipper.exe
PID 1872 wrote to memory of 2832	1872	joinResult.exe	Clipper.exe
PID 1872 wrote to memory of 2832	1872	joinResult.exe	Clipper.exe
PID 2832 wrote to memory of 2900	2832	Clipper.exe	schtasks.exe
PID 2832 wrote to memory of 2900	2832	Clipper.exe	schtasks.exe
PID 2832 wrote to memory of 2900	2832	Clipper.exe	schtasks.exe
PID 2832 wrote to memory of 2964	2832	Clipper.exe	WinService.exe
PID 2832 wrote to memory of 2964	2832	Clipper.exe	WinService.exe
PID 2832 wrote to memory of 2964	2832	Clipper.exe	WinService.exe
PID 2720 wrote to memory of 1912	2720	1111.exe	cmd.exe
PID 2720 wrote to memory of 1912	2720	1111.exe	cmd.exe
PID 2720 wrote to memory of 1912	2720	1111.exe	cmd.exe
PID 2720 wrote to memory of 1912	2720	1111.exe	cmd.exe
PID 1912 wrote to memory of 1148	1912	cmd.exe	PING.EXE
PID 1912 wrote to memory of 1148	1912	cmd.exe	PING.EXE
PID 1912 wrote to memory of 1148	1912	cmd.exe	PING.EXE
PID 1912 wrote to memory of 1148	1912	cmd.exe	PING.EXE
PID 2108 wrote to memory of 2288	2108	taskeng.exe	WinService.exe
PID 2108 wrote to memory of 2288	2108	taskeng.exe	WinService.exe
PID 2108 wrote to memory of 2288	2108	taskeng.exe	WinService.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\VPN\VyprVPN.exe
"C:\Users\Admin\AppData\Local\Temp\VPN\VyprVPN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Roaming\1337\joinResult.exe
  "C:\Users\Admin\AppData\Roaming\1337\joinResult.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Users\Admin\AppData\Roaming\1337\1111.exe
    "C:\Users\Admin\AppData\Roaming\1337\1111.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2720
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C ping 1.1.1.1 -n 3 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Roaming\1337\1111.exe"
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Suspicious use of WriteProcessMemory
      PID:1912
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 1.1.1.1 -n 3 -w 3000
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:1148
- - C:\Users\Admin\AppData\Roaming\1337\Clipper.exe
    "C:\Users\Admin\AppData\Roaming\1337\Clipper.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Service" /tr "C:\Users\Admin\WinService.exe" /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2900
  - - C:\Users\Admin\WinService.exe
      "C:\Users\Admin\WinService.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:2964
- C:\Users\Admin\AppData\Roaming\1337\VyprVPN.exe
  "C:\Users\Admin\AppData\Roaming\1337\VyprVPN.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1640

C:\Windows\system32\taskeng.exe
taskeng.exe {FE0AAB72-DDC7-42C8-B383-57DCA0769C33} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\WinService.exe
  C:\Users\Admin\WinService.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\1337\1111.exe

Filesize
1.4MB

MD5
32373185ece79936dfd0fd41d2848a2e

SHA1
591f92bcaeeea85e8bba6988ef0d1afcea35fbbd

SHA256
5390fc20629a4a350dc8f0482472f9962f50364b7818b2d510beb4e520581ad4

SHA512
443b8df46dd6009285500148d2c4e0654e20e24b897fb29a9eded1cb21da6c495feaa1df81043ed4818f6ea511813c926e9f645b3ec4c8ab5c2c79f0fb5859dc

Download Submit
C:\Users\Admin\AppData\Roaming\1337\Clipper.exe

Filesize
18KB

MD5
c7e43ab36c3da3371fc915de9dc5106f

SHA1
f1bb12ae485853c1a28a8306604ef3eb3939068d

SHA256
4ff04b9be72efe982594832d51681c08334f4d8512c3560c646c21f88fd5e532

SHA512
383a02a7a338ca66077f5d577ae7f63f95cf1b711f1338e9dd11867a62d6dc298e0fd01878adc273669f5f1e8cffb0aa4ea3efa75ffb870616a0d3fef3cb454e

Download Submit
C:\Users\Admin\AppData\Roaming\1337\VyprVPN.exe

Filesize
3.2MB

MD5
25e9776bb3965060ac5d9234fd25a11d

SHA1
5df6e261a930c0068c94542ef5180722a513e4fb

SHA256
8321b2785893442efeedddc40f0979563e8e2fc1a51cc3e4ee93d6f36d4e154d

SHA512
8735acb4bad98ad06b9cee96cda9a3c5026e5f584bd4efb782cf9a8a6f3ea9e39f7d280497dabbb5f6662a6a63bb9a6674c4c020bc73669517b05d0e708d0d7c

Download Submit
\Users\Admin\AppData\Local\Temp\nstD01D.tmp\System.dll

Filesize
11KB

MD5
2ae993a2ffec0c137eb51c8832691bcb

SHA1
98e0b37b7c14890f8a599f35678af5e9435906e1

SHA256
681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59

SHA512
2501371eb09c01746119305ba080f3b8c41e64535ff09cee4f51322530366d0bd5322ea5290a466356598027e6cda8ab360caef62dcaf560d630742e2dd9bcd9

Download Submit
\Users\Admin\AppData\Roaming\1337\joinResult.exe

Filesize
1.8MB

MD5
79022fbafee9fe740a5230f87bd33171

SHA1
42bf0f7bf41009fd0009535a8b1162cbe60dce6f

SHA256
640c30cfa519be11c02c4e51bf18979a93266887cc9ef19076b3d0f1f20528b6

SHA512
48e0d4a18d99dce4398de73895a157e13293115b52ee5158f9ea6fc73c4d5f4133e1cebba14ff5482b8c4f7dfeebfe3b003df1caf351314f1cc16944818df4b3

Download Submit
memory/1640-25-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/1640-28-0x0000000000210000-0x0000000000540000-memory.dmp

Filesize
3.2MB

Download
memory/1640-75-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/2288-82-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/2720-44-0x00000000008F0000-0x0000000000CE9000-memory.dmp

Filesize
4.0MB

Download
memory/2720-76-0x00000000008F0000-0x0000000000CE9000-memory.dmp

Filesize
4.0MB

Download
memory/2720-77-0x00000000008F0000-0x0000000000CE9000-memory.dmp

Filesize
4.0MB

Download
memory/2720-78-0x00000000008F0000-0x0000000000CE9000-memory.dmp

Filesize
4.0MB

Download
memory/2720-80-0x00000000008F0000-0x0000000000CE9000-memory.dmp

Filesize
4.0MB

Download
memory/2832-46-0x0000000000AC0000-0x0000000000ACA000-memory.dmp

Filesize
40KB

Download