stealerium | 16cfc79d7df881059cd59a5bc0fe4211e55a49105eca41810c0fb2a81f1b5fac

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 08:01

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General

Target

build.exe
Size

1.6MB
MD5

a5b27249ecbe247acfc5cf83273d8665
SHA1

95750f6e9ad5575a8ecdfa166360803bae106dea
SHA256

16cfc79d7df881059cd59a5bc0fe4211e55a49105eca41810c0fb2a81f1b5fac
SHA512

0d09d902ea81803b215fd48851fab45e73742468a445699bcb3f167b5a5f624aa15e16e06f30fcbb982f097f234a03794ad90a997895a7ad2204eead2ce93ea0
SSDEEP

24576:Ci2Q9NXw2/wPOjdGxY2rJxkqjVnlqud+/2P+A+ZecdyFoBkkAqmZywW0n:1Tq24GjdGSiJxkqXfd+/9AqYanCLW

Score

10^/10

stealerium collection credential_access discovery persistence privilege_escalation spyware stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1286214415032647690/r-yxbuBi8jgUxjR-tve-DhICa88aywPqPL-phwwQiPH4eUFD5sQGev1sHX8VCx21j5r_

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	discord.com
5	discord.com

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
6	icanhazip.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1524	2504	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 8 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	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	build.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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
2984	cmd.exe
396	netsh.exe

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	build.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	build.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2504	build.exe
2504	build.exe
2504	build.exe
2504	build.exe
2504	build.exe
2504	build.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	build.exe
Token: SeRestorePrivilege	2268	msiexec.exe
Token: SeTakeOwnershipPrivilege	2268	msiexec.exe
Token: SeSecurityPrivilege	2268	msiexec.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2984	2504	build.exe	31
PID 2504 wrote to memory of 2984	2504	build.exe	31
PID 2504 wrote to memory of 2984	2504	build.exe	31
PID 2504 wrote to memory of 2984	2504	build.exe	31
PID 2984 wrote to memory of 1488	2984	cmd.exe	33
PID 2984 wrote to memory of 1488	2984	cmd.exe	33
PID 2984 wrote to memory of 1488	2984	cmd.exe	33
PID 2984 wrote to memory of 1488	2984	cmd.exe	33
PID 2984 wrote to memory of 396	2984	cmd.exe	34
PID 2984 wrote to memory of 396	2984	cmd.exe	34
PID 2984 wrote to memory of 396	2984	cmd.exe	34
PID 2984 wrote to memory of 396	2984	cmd.exe	34
PID 2984 wrote to memory of 1740	2984	cmd.exe	35
PID 2984 wrote to memory of 1740	2984	cmd.exe	35
PID 2984 wrote to memory of 1740	2984	cmd.exe	35
PID 2984 wrote to memory of 1740	2984	cmd.exe	35
PID 2504 wrote to memory of 2628	2504	build.exe	37
PID 2504 wrote to memory of 2628	2504	build.exe	37
PID 2504 wrote to memory of 2628	2504	build.exe	37
PID 2504 wrote to memory of 2628	2504	build.exe	37
PID 2628 wrote to memory of 2664	2628	cmd.exe	39
PID 2628 wrote to memory of 2664	2628	cmd.exe	39
PID 2628 wrote to memory of 2664	2628	cmd.exe	39
PID 2628 wrote to memory of 2664	2628	cmd.exe	39
PID 2628 wrote to memory of 2176	2628	cmd.exe	40
PID 2628 wrote to memory of 2176	2628	cmd.exe	40
PID 2628 wrote to memory of 2176	2628	cmd.exe	40
PID 2628 wrote to memory of 2176	2628	cmd.exe	40
PID 2504 wrote to memory of 1524	2504	build.exe	42
PID 2504 wrote to memory of 1524	2504	build.exe	42
PID 2504 wrote to memory of 1524	2504	build.exe	42
PID 2504 wrote to memory of 1524	2504	build.exe	42

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
1⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2504
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Wi-Fi Discovery
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1488
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:396
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1740
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2664
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2504 -s 1892
  2⤵
  - Program crash
  PID:1524

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Discovery

Browser Information Discovery

T1217

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

Email Collection

T1114

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\c90794045f73dd693d04cf27e1744555\Admin@MXQFNXLT_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\c90794045f73dd693d04cf27e1744555\Admin@MXQFNXLT_en-US\Directories\Startup.txt

Filesize
24B

MD5
68c93da4981d591704cea7b71cebfb97

SHA1
fd0f8d97463cd33892cc828b4ad04e03fc014fa6

SHA256
889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483

SHA512
63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

Download Submit
C:\Users\Admin\AppData\Local\c90794045f73dd693d04cf27e1744555\Admin@MXQFNXLT_en-US\Directories\Videos.txt

Filesize
23B

MD5
1fddbf1169b6c75898b86e7e24bc7c1f

SHA1
d2091060cb5191ff70eb99c0088c182e80c20f8c

SHA256
a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733

SHA512
20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

Download Submit
C:\Users\Admin\AppData\Local\c90794045f73dd693d04cf27e1744555\Admin@MXQFNXLT_en-US\System\Apps.txt

Filesize
4KB

MD5
cc72af93ff0032af559eddf65ac44e34

SHA1
be3788fb5fb3cecb8a5e8111405d7dfb935bd10a

SHA256
63ada6c55f446ec65a413cc79d792546c4342be990a3ce1c30bdcf817daea0ab

SHA512
ff0a34c62925d88d02e1abfe8b0bdd520a936fa63b649ca245498298605b5d2db171663d8a21b27bb2be13495c3e753e5c9d2d796532cca88a239c6620d30eaf

Download Submit
C:\Users\Admin\AppData\Local\c90794045f73dd693d04cf27e1744555\Admin@MXQFNXLT_en-US\System\Debug.txt

Filesize
1KB

MD5
6d49b5fb12a952d44ef68b21be4926b6

SHA1
fd9e089c0a93bec84e0f94886f731fd31875cda5

SHA256
2bda8f7412a7ecabd70df00566a625b7cf0fee8c893c725f21e5ff9987f58a75

SHA512
2a59b25200941cf6a0361509b869244e036f3a5ad70e51a4d94827e2783816751c42b8be60f08c623c1a96a8ab7c1b3bb328f88b8034b6d0f43fc53c27779c51

Download Submit
C:\Users\Admin\AppData\Local\c90794045f73dd693d04cf27e1744555\Admin@MXQFNXLT_en-US\System\ProductKey.txt

Filesize
29B

MD5
cad6c6bee6c11c88f5e2f69f0be6deb7

SHA1
289d74c3bebe6cca4e1d2e084482ad6d21316c84

SHA256
dc288491fadc4a85e71085890e3d6a7746e99a317cd5ef09a30272dfb10398c0

SHA512
e02cf6bff8b4ebd7a1346ecb1667be36c3ef7415fff77c3b9cfb370f3d0dc861f74d3e0e49065699850ba6cc025cd68d14ceb73f3b512c2a9b28873a69aff097

Download Submit
memory/2504-6-0x0000000000690000-0x00000000006B6000-memory.dmp

Filesize
152KB

Download
memory/2504-9-0x00000000022E0000-0x00000000022FE000-memory.dmp

Filesize
120KB

Download
memory/2504-8-0x00000000008D0000-0x00000000008D8000-memory.dmp

Filesize
32KB

Download
memory/2504-85-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2504-7-0x00000000007B0000-0x00000000007BA000-memory.dmp

Filesize
40KB

Download
memory/2504-130-0x0000000006120000-0x000000000619A000-memory.dmp

Filesize
488KB

Download
memory/2504-131-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2504-5-0x0000000005380000-0x0000000005420000-memory.dmp

Filesize
640KB

Download
memory/2504-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-1-0x0000000000920000-0x0000000000AB6000-memory.dmp

Filesize
1.6MB

Download
memory/2504-195-0x0000000006B60000-0x0000000006C12000-memory.dmp

Filesize
712KB

Download
memory/2504-197-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download