vipkeylogger | 26c434592adaffa102b1cc61983fd9355dfa4fe0e06ad3acb50732892f67d466

Analysis

max time kernel
122s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 13:00

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General

Target

BQ_PO#385995.exe
Size

398KB
MD5

7e3e88fad78dff83ea421084315bfd78
SHA1

2e185874ff61f0097b34ae66cdc09bbbf1951f62
SHA256

26c434592adaffa102b1cc61983fd9355dfa4fe0e06ad3acb50732892f67d466
SHA512

432da571335f6eb1b827eceb1bf0b0cc62b2a1a7734fce3374620769487e908916a39b0e4c94ef6e764f65f3ce7066040055e52d14a7b84bb1e1650ec355460f
SSDEEP

6144:OzzpHNxvSI3xlkVxOwDWcvPRavLhOPxersLWd3JyQdETiOhhe3DU705AN8u1tdQM:INxvSec3RMY+sLSZyyETvzck05AGuvr

Score

10^/10

vipkeylogger xworm collection discovery execution keylogger rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Version

3.1

69.174.100.131:7000

Mutex

I1KOVoZcD6Qqbmm9

Attributes

install_file
USB.exe

aes.plain

Extracted

Family

vipkeylogger

https://api.telegram.org/bot7721085569:AAH1tkciy-nKykIEUNjOAUsItTcvNCVmFLo/sendMessage?chat_id=6236275763

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2812-7-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2812-6-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2812-9-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2812-11-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2812-13-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2612	powershell.exe
1044	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
1980	nywnzo.exe

Loads dropped DLL 1 IoCs

pid	Process
2812	jsc.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nywnzo.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nywnzo.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nywnzo.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
5	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2812	2668	BQ_PO#385995.exe	32

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nywnzo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2612	powershell.exe
1044	powershell.exe
1980	nywnzo.exe
1980	nywnzo.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	jsc.exe
Token: SeDebugPrivilege	2612	powershell.exe
Token: SeDebugPrivilege	1044	powershell.exe
Token: SeDebugPrivilege	1980	nywnzo.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2664	2668	BQ_PO#385995.exe	31
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2812	2668	BQ_PO#385995.exe	32
PID 2668 wrote to memory of 2720	2668	BQ_PO#385995.exe	33
PID 2668 wrote to memory of 2720	2668	BQ_PO#385995.exe	33
PID 2668 wrote to memory of 2720	2668	BQ_PO#385995.exe	33
PID 2812 wrote to memory of 2612	2812	jsc.exe	34
PID 2812 wrote to memory of 2612	2812	jsc.exe	34
PID 2812 wrote to memory of 2612	2812	jsc.exe	34
PID 2812 wrote to memory of 2612	2812	jsc.exe	34
PID 2812 wrote to memory of 1044	2812	jsc.exe	36
PID 2812 wrote to memory of 1044	2812	jsc.exe	36
PID 2812 wrote to memory of 1044	2812	jsc.exe	36
PID 2812 wrote to memory of 1044	2812	jsc.exe	36
PID 2812 wrote to memory of 1980	2812	jsc.exe	39
PID 2812 wrote to memory of 1980	2812	jsc.exe	39
PID 2812 wrote to memory of 1980	2812	jsc.exe	39
PID 2812 wrote to memory of 1980	2812	jsc.exe	39

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nywnzo.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nywnzo.exe

C:\Users\Admin\AppData\Local\Temp\BQ_PO#385995.exe
"C:\Users\Admin\AppData\Local\Temp\BQ_PO#385995.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
  2⤵
  PID:2664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2612
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'jsc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1044
- - C:\Users\Admin\AppData\Local\Temp\nywnzo.exe
    "C:\Users\Admin\AppData\Local\Temp\nywnzo.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1980
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2668 -s 636
  2⤵
  PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
c2ecc3b3b5441c8aaaebaa1fef6b4cd7

SHA1
56f541c9dba45a8eafbd043ee2f2aefa7bc9f0c0

SHA256
3a6056892240d8c6f43565ae1f6ef4bcb32b9053880fea1162c9bb6769be6c1e

SHA512
9aeee2db11ca0c900c0e6c7b1faf64ac0dd1d43741484064e1d14c3689328092b7a32f1bd1f405308ec46a85f336875b01425e7036e01bd6b3a009ad4320e371

Download Submit
\Users\Admin\AppData\Local\Temp\nywnzo.exe

Filesize
271KB

MD5
4c8c1ceb91408ad5a5011b56b325419e

SHA1
1c4164b98be5d5235eebfd8a54f45a8e07b229ea

SHA256
3dcb27942e0687d24841db48d2b91ff2ae749be95655af9bb10f8a2c46052773

SHA512
a4be594b66ef0981edd13519690395405d1a982d35eba8814b8fc69c1a4b6693df382c4d979b277615728c593942be9fcd6494dc12510f4eb71f233b1e7fb6a2

Download Submit
memory/1980-36-0x00000000000B0000-0x00000000000FA000-memory.dmp

Filesize
296KB

Download
memory/2668-1-0x0000000000220000-0x0000000000288000-memory.dmp

Filesize
416KB

Download
memory/2668-2-0x0000000000470000-0x00000000004D0000-memory.dmp

Filesize
384KB

Download
memory/2668-3-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2668-0-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

Filesize
4KB

Download
memory/2668-23-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2812-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2812-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2812-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2812-13-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2812-14-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2812-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-22-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2812-24-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2812-25-0x0000000006430000-0x00000000064B2000-memory.dmp

Filesize
520KB

Download
memory/2812-26-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-28-0x0000000006AA0000-0x0000000006B2C000-memory.dmp

Filesize
560KB

Download
memory/2812-29-0x0000000006110000-0x0000000006174000-memory.dmp

Filesize
400KB

Download
memory/2812-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2812-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download