eff5fad47b9c739b09e760813b2bcbb0788eb35598f72e64ff95c794e72e6676

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 06:46

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General

Target

4962575a2378d5c72e7a836ea766e2ad.exe
Size

431KB
MD5

4962575a2378d5c72e7a836ea766e2ad
SHA1

549964178b12017622d3cbdda6dbfdef0904e7e2
SHA256

eff5fad47b9c739b09e760813b2bcbb0788eb35598f72e64ff95c794e72e6676
SHA512

911a59f7a6785dd09a57dcd6d977b8abd5e160bd613786e871a1e92377c9e6f3b85fe3037431754bbdb1212e153776efca5fadac1de6b2ad474253da176e8e53
SSDEEP

12288:JOKJim5EI9tVEw/JF4+D3q2IMbgiDK7mWasB:Jj9tL8ZMEiDfWb

Score

8^/10

credential_access discovery execution persistence privilege_escalation spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
25	5100	rundll32.exe
27	5100	rundll32.exe
28	2812	rundll32.exe
29	2812	rundll32.exe
44	2776	rundll32.exe
45	2776	rundll32.exe
46	924	rundll32.exe
47	924	rundll32.exe

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	4962575a2378d5c72e7a836ea766e2ad.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	Gxtuum.exe

Executes dropped EXE 3 IoCs

pid	Process
5064	Gxtuum.exe
1944	Gxtuum.exe
1384	Gxtuum.exe

Loads dropped DLL 6 IoCs

pid	Process
2100	rundll32.exe
5100	rundll32.exe
2232	rundll32.exe
2812	rundll32.exe
2776	rundll32.exe
924	rundll32.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Gxtuum.job	4962575a2378d5c72e7a836ea766e2ad.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1316	powershell.exe
3152	powershell.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gxtuum.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4962575a2378d5c72e7a836ea766e2ad.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
2916	netsh.exe
2464	netsh.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
5100	rundll32.exe
1316	powershell.exe
1316	powershell.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
2812	rundll32.exe
3152	powershell.exe
3152	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1316	powershell.exe
Token: SeDebugPrivilege	3152	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 5064	4968	4962575a2378d5c72e7a836ea766e2ad.exe	82
PID 4968 wrote to memory of 5064	4968	4962575a2378d5c72e7a836ea766e2ad.exe	82
PID 4968 wrote to memory of 5064	4968	4962575a2378d5c72e7a836ea766e2ad.exe	82
PID 5064 wrote to memory of 2100	5064	Gxtuum.exe	90
PID 5064 wrote to memory of 2100	5064	Gxtuum.exe	90
PID 5064 wrote to memory of 2100	5064	Gxtuum.exe	90
PID 2100 wrote to memory of 5100	2100	rundll32.exe	91
PID 2100 wrote to memory of 5100	2100	rundll32.exe	91
PID 5100 wrote to memory of 2916	5100	rundll32.exe	92
PID 5100 wrote to memory of 2916	5100	rundll32.exe	92
PID 5100 wrote to memory of 1316	5100	rundll32.exe	94
PID 5100 wrote to memory of 1316	5100	rundll32.exe	94
PID 5064 wrote to memory of 2232	5064	Gxtuum.exe	96
PID 5064 wrote to memory of 2232	5064	Gxtuum.exe	96
PID 5064 wrote to memory of 2232	5064	Gxtuum.exe	96
PID 2232 wrote to memory of 2812	2232	rundll32.exe	97
PID 2232 wrote to memory of 2812	2232	rundll32.exe	97
PID 2812 wrote to memory of 2464	2812	rundll32.exe	98
PID 2812 wrote to memory of 2464	2812	rundll32.exe	98
PID 2812 wrote to memory of 3152	2812	rundll32.exe	100
PID 2812 wrote to memory of 3152	2812	rundll32.exe	100
PID 5064 wrote to memory of 2776	5064	Gxtuum.exe	104
PID 5064 wrote to memory of 2776	5064	Gxtuum.exe	104
PID 5064 wrote to memory of 2776	5064	Gxtuum.exe	104
PID 5064 wrote to memory of 924	5064	Gxtuum.exe	105
PID 5064 wrote to memory of 924	5064	Gxtuum.exe	105
PID 5064 wrote to memory of 924	5064	Gxtuum.exe	105

C:\Users\Admin\AppData\Local\Temp\4962575a2378d5c72e7a836ea766e2ad.exe
"C:\Users\Admin\AppData\Local\Temp\4962575a2378d5c72e7a836ea766e2ad.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe
  "C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5064
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\43266f2abbf198\cred64.dll, Main
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2100
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\43266f2abbf198\cred64.dll, Main
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:5100
    - - C:\Windows\system32\netsh.exe
        
        netsh wlan show profiles
        5⤵
        Event Triggered Execution: Netsh Helper DLL
        System Network Configuration Discovery: Wi-Fi Discovery
        
        PID:2916
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\050598569159_Desktop.zip' -CompressionLevel Optimal
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1316
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\43266f2abbf198\cred64.dll, Main
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2232
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\43266f2abbf198\cred64.dll, Main
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2812
    - - C:\Windows\system32\netsh.exe
        
        netsh wlan show profiles
        5⤵
        Event Triggered Execution: Netsh Helper DLL
        System Network Configuration Discovery: Wi-Fi Discovery
        
        PID:2464
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\050598569159_Desktop.zip' -CompressionLevel Optimal
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3152
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\43266f2abbf198\clip64.dll, Main
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2776
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\43266f2abbf198\clip64.dll, Main
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:924

C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe
C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe
1⤵
- Executes dropped EXE
PID:1944

C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe
C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe
1⤵
- Executes dropped EXE
PID:1384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
fe3aab3ae544a134b68e881b82b70169

SHA1
926e9b4e527ae1bd9b3b25726e1f59d5a34d36a6

SHA256
bda499e3f69d8fe0227e734bbb935dc5bf0050d37adf03bc41356dfcb5bcca0b

SHA512
3fbd3499d98280b6c79c67b0ee183b27692dbc31acf103b4f8ca4dcdf392afff2b3aad500037f4288581ed37e85f45c3bbb5dcde11cddf3ef0609f44b2ecb280

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
fd252dc779057e73982ed35b2bd253da

SHA1
6c3bf7b1dedf640fc90de7bdf3b456d1ffdb1e8c

SHA256
372e07ccd9023096ccdff5c060084973b7c21f41179ec95cef0514854fbf05bd

SHA512
e2cdd4c229e3a543409db13bb0b40b0e00f642edb2ad50a9108662937ea190ce1212c165dfafdbd0ad2a58b83836afc8e289bd52f3381deffb66caa3b38c68f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\050598569159_Desktop.zip

Filesize
18KB

MD5
0d3aa00f3e5d2a8a54419990aa2eaa8c

SHA1
1d384a03d5c358fba8c89c63bbb2ec77964b7215

SHA256
5e7059ecca471bc1990a51b78a9546f87dd60e38bb730509d64dd662bd3374b4

SHA512
baa0fc556c3e7fcf0bda171c6bf7ecbf461a6b86641f3e90492a00391dee4ee3970f6832a2c4210e3021575b49419f9f06cf294e04e4cbcdb81ad9f69136ae37

Download Submit
C:\Users\Admin\AppData\Local\Temp\_Files_\GrantSave.xlsx

Filesize
11KB

MD5
1f8ef0b2e7a4d9d46aaf737c5359ba4a

SHA1
8b85491094058b37beb0344d86eecdf8c246f99b

SHA256
4bad34ef4b7b0cb230c756b60cd6a661d6fa0a2615e9dcde0b7326971f986ce5

SHA512
7dced85f1e4eddebeb73171665ab7de1e5988173de6328ec9303a557e617b21c12c63e89f4f2bd2164c9347e4a0ecd145ba1859ba700f32a36da6d1d9b907a65

Download Submit
C:\Users\Admin\AppData\Local\Temp\_Files_\JoinSearch.xlsx

Filesize
11KB

MD5
3509278bfa9b5a6344f158100e9920bb

SHA1
455405dd8041ff6bcbec3f65e7d43e5f0657f8bc

SHA256
39e3881b76986002284d1d3fff9571d5549c4ce257b1b66889e21227bec6a865

SHA512
9071c65e1ecb9411c34ce6267468ccdefa4ca51523241971d9b3b38318aa43b10e0b6123d473d7385ab10655a00095c6a9d630fe536f2378bc18e45d0fadf19e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d5s0f2wh.3k5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\ee29ea508b\Gxtuum.exe

Filesize
431KB

MD5
4962575a2378d5c72e7a836ea766e2ad

SHA1
549964178b12017622d3cbdda6dbfdef0904e7e2

SHA256
eff5fad47b9c739b09e760813b2bcbb0788eb35598f72e64ff95c794e72e6676

SHA512
911a59f7a6785dd09a57dcd6d977b8abd5e160bd613786e871a1e92377c9e6f3b85fe3037431754bbdb1212e153776efca5fadac1de6b2ad474253da176e8e53

Download Submit
C:\Users\Admin\AppData\Roaming\43266f2abbf198\clip64.dll

Filesize
124KB

MD5
c2f3fbbbe6d5f48a71b6b168b1485866

SHA1
1cd56cfc2dc07880b65bd8a1f5b7147633f5d553

SHA256
c7ed512058bc924045144daa16701da10f244ac12a5ea2de901e59dce6470839

SHA512
e211f18c2850987529336e0d20aa894533c1f6a8ae6745e320fd394a9481d3a956c719ac29627afd783e36e5429c0325b98e60aee2a830e75323c276c72f845a

Download Submit
C:\Users\Admin\AppData\Roaming\43266f2abbf198\cred64.dll

Filesize
1.2MB

MD5
c6aabb27450f1a9939a417e86bf53217

SHA1
b8ef3bb7575139fd6997379415d7119e452b5fc4

SHA256
b91a3743c7399aee454491862e015ef6fc668a25d1aa2816e065a86a03f6be35

SHA512
e5fe205cb0f419e0a320488d6fa4a70e5ed58f25b570b41412ebd4f32bbe504ff75acb20bfea22513102630cf653a41e5090051f20af2ed3aadb53ce16a05944

Download Submit
memory/1316-23-0x00000246DE520000-0x00000246DE542000-memory.dmp

Filesize
136KB

Download
memory/1316-32-0x00000246DE650000-0x00000246DE662000-memory.dmp

Filesize
72KB

Download
memory/1316-33-0x00000246DC420000-0x00000246DC42A000-memory.dmp

Filesize
40KB

Download