stealerium | 6e5d248ddb830cd208fc28cd6c8a67f1de3cfc2f08ce17ca6628094ab5b2c0b0

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
02-09-2024 04:58

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General

Target

build.exe
Size

1.6MB
MD5

bdd8720f26b3c7a8571a19be138d104c
SHA1

1703280d57df7ed7f0fb0ba07e4db9e920bc7888
SHA256

6e5d248ddb830cd208fc28cd6c8a67f1de3cfc2f08ce17ca6628094ab5b2c0b0
SHA512

f66d40d32c72cb4ad4cd0d757e7d7a2265a5a388751fb802a22278e44c6d57145854de403b646cef7b0a12a9ea1d6877628bc640e95626b879337450c001af30
SSDEEP

49152:skTq24GjdGSiqkqXfd+/9AqYanieKdsB:s1EjdGSiqkqXf0FLYW

Score

10^/10

stealerium collection credential_access discovery persistence privilege_escalation spyware stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1200737559454699621/mFXBB-ZPPDQWIQJYiv55QprpsoLEFc02oIhLL6DCGzur6yESPcQzMQDCm4PwbSt9Fgxj

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-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\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
8	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
684	2780	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	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
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

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
2640	cmd.exe
1168	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 7 IoCs

pid	Process
2780	build.exe
2780	build.exe
2780	build.exe
2780	build.exe
2780	build.exe
2780	build.exe
2780	build.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	build.exe
Token: SeRestorePrivilege	1524	msiexec.exe
Token: SeTakeOwnershipPrivilege	1524	msiexec.exe
Token: SeSecurityPrivilege	1524	msiexec.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2640	2780	build.exe	31
PID 2780 wrote to memory of 2640	2780	build.exe	31
PID 2780 wrote to memory of 2640	2780	build.exe	31
PID 2780 wrote to memory of 2640	2780	build.exe	31
PID 2640 wrote to memory of 1284	2640	cmd.exe	33
PID 2640 wrote to memory of 1284	2640	cmd.exe	33
PID 2640 wrote to memory of 1284	2640	cmd.exe	33
PID 2640 wrote to memory of 1284	2640	cmd.exe	33
PID 2640 wrote to memory of 1168	2640	cmd.exe	34
PID 2640 wrote to memory of 1168	2640	cmd.exe	34
PID 2640 wrote to memory of 1168	2640	cmd.exe	34
PID 2640 wrote to memory of 1168	2640	cmd.exe	34
PID 2640 wrote to memory of 1812	2640	cmd.exe	35
PID 2640 wrote to memory of 1812	2640	cmd.exe	35
PID 2640 wrote to memory of 1812	2640	cmd.exe	35
PID 2640 wrote to memory of 1812	2640	cmd.exe	35
PID 2780 wrote to memory of 408	2780	build.exe	36
PID 2780 wrote to memory of 408	2780	build.exe	36
PID 2780 wrote to memory of 408	2780	build.exe	36
PID 2780 wrote to memory of 408	2780	build.exe	36
PID 408 wrote to memory of 2464	408	cmd.exe	38
PID 408 wrote to memory of 2464	408	cmd.exe	38
PID 408 wrote to memory of 2464	408	cmd.exe	38
PID 408 wrote to memory of 2464	408	cmd.exe	38
PID 408 wrote to memory of 2032	408	cmd.exe	39
PID 408 wrote to memory of 2032	408	cmd.exe	39
PID 408 wrote to memory of 2032	408	cmd.exe	39
PID 408 wrote to memory of 2032	408	cmd.exe	39
PID 2780 wrote to memory of 684	2780	build.exe	41
PID 2780 wrote to memory of 684	2780	build.exe	41
PID 2780 wrote to memory of 684	2780	build.exe	41
PID 2780 wrote to memory of 684	2780	build.exe	41

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\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:2780
- 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:2640
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1284
- - 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:1168
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1812
- 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:408
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2464
- - 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:2032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 2620
  2⤵
  - Program crash
  PID:684

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1524

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\65d977c3a279af98cde09a8b14e5c3be\Admin@PSBQWFYT_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\65d977c3a279af98cde09a8b14e5c3be\Admin@PSBQWFYT_en-US\Directories\Startup.txt

Filesize
24B

MD5
68c93da4981d591704cea7b71cebfb97

SHA1
fd0f8d97463cd33892cc828b4ad04e03fc014fa6

SHA256
889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483

SHA512
63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

Download Submit
C:\Users\Admin\AppData\Local\65d977c3a279af98cde09a8b14e5c3be\Admin@PSBQWFYT_en-US\Directories\Videos.txt

Filesize
23B

MD5
1fddbf1169b6c75898b86e7e24bc7c1f

SHA1
d2091060cb5191ff70eb99c0088c182e80c20f8c

SHA256
a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733

SHA512
20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

Download Submit
C:\Users\Admin\AppData\Local\65d977c3a279af98cde09a8b14e5c3be\Admin@PSBQWFYT_en-US\System\Apps.txt

Filesize
6KB

MD5
02c1ddecb9eb19c853a420ca114d2631

SHA1
6cb30a60c26c530d8596992a2634106e01a219ba

SHA256
087ae1ae60ebf0c5bc7fd01e9473a3bfb7237eb755b24e7c739a6c0ec8176b1e

SHA512
c93a9f41e88636676fbbb85ae91bd1ead80602ed3ad717fc46d74165d0050523b7f65ac5f3f62368b24ec7477d02aee7d7e53fc4be0bdec300f7206cd39da795

Download Submit
C:\Users\Admin\AppData\Local\65d977c3a279af98cde09a8b14e5c3be\Admin@PSBQWFYT_en-US\System\Debug.txt

Filesize
320B

MD5
d2eda3bc385daecc98ce05ede9047d7f

SHA1
f2ee1831858e36cea62663d6cbcacf724aca4f3e

SHA256
5595d09fc27d495ade36051ffb295f54606bb40642bad3f31a9ee9df83dc9f60

SHA512
7f003e046d7c17be898797b25274c565087849ffc60b1867d614ce1f29b186a3e9e389656058e6bc06e9f34717fa6016302ec007c773354d460a3b12d2ef1286

Download Submit
C:\Users\Admin\AppData\Local\65d977c3a279af98cde09a8b14e5c3be\Admin@PSBQWFYT_en-US\System\ProductKey.txt

Filesize
29B

MD5
cad6c6bee6c11c88f5e2f69f0be6deb7

SHA1
289d74c3bebe6cca4e1d2e084482ad6d21316c84

SHA256
dc288491fadc4a85e71085890e3d6a7746e99a317cd5ef09a30272dfb10398c0

SHA512
e02cf6bff8b4ebd7a1346ecb1667be36c3ef7415fff77c3b9cfb370f3d0dc861f74d3e0e49065699850ba6cc025cd68d14ceb73f3b512c2a9b28873a69aff097

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabA93C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA94F.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2780-45-0x0000000000B50000-0x0000000000B5A000-memory.dmp

Filesize
40KB

Download
memory/2780-10-0x0000000000530000-0x0000000000538000-memory.dmp

Filesize
32KB

Download
memory/2780-0-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/2780-46-0x00000000041C0000-0x00000000041C8000-memory.dmp

Filesize
32KB

Download
memory/2780-47-0x0000000004260000-0x000000000427E000-memory.dmp

Filesize
120KB

Download
memory/2780-9-0x00000000005A0000-0x00000000005C6000-memory.dmp

Filesize
152KB

Download
memory/2780-8-0x00000000056E0000-0x0000000005772000-memory.dmp

Filesize
584KB

Download
memory/2780-168-0x0000000005EA0000-0x0000000005F1A000-memory.dmp

Filesize
488KB

Download
memory/2780-7-0x0000000074930000-0x000000007501E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-6-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/2780-2-0x0000000074930000-0x000000007501E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-1-0x0000000000BE0000-0x0000000000D72000-memory.dmp

Filesize
1.6MB

Download
memory/2780-232-0x00000000073A0000-0x0000000007452000-memory.dmp

Filesize
712KB

Download