stealerium | 434b24ee97a727982a127dbf28d5b3b938e8589e69d92f57ffb5ed4cdf51b305

Analysis

max time kernel
147s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
22-09-2024 20:23

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General

Target

build.exe
Size

1.6MB
MD5

3923d76c1bdc19346db7ef3ce7ecf39d
SHA1

209e93526f1eed8b0a33ed1cf62bd9f6c8ef04e7
SHA256

434b24ee97a727982a127dbf28d5b3b938e8589e69d92f57ffb5ed4cdf51b305
SHA512

8b0cc22caa18b1a01f8e3d86323965f4db051654e8dcea9ee49edc7a3fdf0f12e5a53c53d5686b49988d13be437dcb82707010b171b01262903a7bbd09d4ff1d
SSDEEP

24576:si2Q9NXw2/wPOjdGxY2rJxkqjVnlqud+/2P+A+ZecdyFoBkkAqmZywp0/:DTq24GjdGSiJxkqXfd+/9AqYanCLp

Score

10^/10

stealerium collection credential_access discovery persistence privilege_escalation spyware stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1287506826279129221/xtmBrxjVwk8CNmFFCmP-CL8-wWbVTomW26j6YFaob_78SA4yDnROH_sKo1BzgFFsDc6e

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-1-5-21-2842058299-443432012-2465494467-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-2842058299-443432012-2465494467-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-2842058299-443432012-2465494467-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
1	discord.com
2	discord.com
13	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
3	icanhazip.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 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

System Location Discovery: System Language Discovery 1 TTPs 12 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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.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
3576	cmd.exe
3228	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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3348	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2364	taskkill.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe
3920	build.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3920	build.exe
Token: SeSecurityPrivilege	2784	msiexec.exe
Token: SeDebugPrivilege	2364	taskkill.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3920 wrote to memory of 3576	3920	build.exe	79
PID 3920 wrote to memory of 3576	3920	build.exe	79
PID 3920 wrote to memory of 3576	3920	build.exe	79
PID 3576 wrote to memory of 4644	3576	cmd.exe	82
PID 3576 wrote to memory of 4644	3576	cmd.exe	82
PID 3576 wrote to memory of 4644	3576	cmd.exe	82
PID 3576 wrote to memory of 3228	3576	cmd.exe	83
PID 3576 wrote to memory of 3228	3576	cmd.exe	83
PID 3576 wrote to memory of 3228	3576	cmd.exe	83
PID 3576 wrote to memory of 3348	3576	cmd.exe	84
PID 3576 wrote to memory of 3348	3576	cmd.exe	84
PID 3576 wrote to memory of 3348	3576	cmd.exe	84
PID 3920 wrote to memory of 2392	3920	build.exe	88
PID 3920 wrote to memory of 2392	3920	build.exe	88
PID 3920 wrote to memory of 2392	3920	build.exe	88
PID 2392 wrote to memory of 4044	2392	cmd.exe	90
PID 2392 wrote to memory of 4044	2392	cmd.exe	90
PID 2392 wrote to memory of 4044	2392	cmd.exe	90
PID 2392 wrote to memory of 2076	2392	cmd.exe	91
PID 2392 wrote to memory of 2076	2392	cmd.exe	91
PID 2392 wrote to memory of 2076	2392	cmd.exe	91
PID 3920 wrote to memory of 3344	3920	build.exe	92
PID 3920 wrote to memory of 3344	3920	build.exe	92
PID 3920 wrote to memory of 3344	3920	build.exe	92
PID 3344 wrote to memory of 3144	3344	cmd.exe	94
PID 3344 wrote to memory of 3144	3344	cmd.exe	94
PID 3344 wrote to memory of 3144	3344	cmd.exe	94
PID 3344 wrote to memory of 2364	3344	cmd.exe	95
PID 3344 wrote to memory of 2364	3344	cmd.exe	95
PID 3344 wrote to memory of 2364	3344	cmd.exe	95
PID 3344 wrote to memory of 3348	3344	cmd.exe	96
PID 3344 wrote to memory of 3348	3344	cmd.exe	96
PID 3344 wrote to memory of 3348	3344	cmd.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2842058299-443432012-2465494467-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2842058299-443432012-2465494467-1000\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:3920
- 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:3576
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4644
- - 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:3228
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3348
- 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:2392
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4044
- - 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:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp1B60.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3344
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3144
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 3920
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2364
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3348

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2784

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\Temp\tmp1B60.tmp.bat

Filesize
57B

MD5
baab4e4eb1b77939e0148f0b90d324b5

SHA1
7a1d0e0d6963e3a1366c435c13c23d5f87510d66

SHA256
f40f4b6c52bc74d009c736d35d1c87c800ce5c92930db85fc4d8e6b7baac0cd7

SHA512
b31558c8311757121ce89295cffd6c6473636005edeb80ae68f124385aa9a554bd4f5fec89689ae09265aaaf7a31bfb2d9402d63530f98f418003dd7b8a79d4f

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\Directories\OneDrive.txt

Filesize
25B

MD5
966247eb3ee749e21597d73c4176bd52

SHA1
1e9e63c2872cef8f015d4b888eb9f81b00a35c79

SHA256
8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e

SHA512
bd30aec68c070e86e3dec787ed26dd3d6b7d33d83e43cb2d50f9e2cff779fee4c96afbbe170443bd62874073a844beb29a69b10c72c54d7d444a8d86cfd7b5aa

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\Directories\Startup.txt

Filesize
24B

MD5
68c93da4981d591704cea7b71cebfb97

SHA1
fd0f8d97463cd33892cc828b4ad04e03fc014fa6

SHA256
889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483

SHA512
63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\Directories\Videos.txt

Filesize
23B

MD5
1fddbf1169b6c75898b86e7e24bc7c1f

SHA1
d2091060cb5191ff70eb99c0088c182e80c20f8c

SHA256
a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733

SHA512
20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\System\Apps.txt

Filesize
1KB

MD5
672e0b47e4b4223264ba69dc7c8dd46b

SHA1
ceddff132da98cc65ca4880223bc713c0ee9958b

SHA256
c4b90343a895873725d00235136224359178e96c95f358e11347f1de2184be2a

SHA512
f46c8c395eef806dcf5eda982992b580646904e5919604a8ad55359650f63c8bde2adff491a8577acdf15a55be3f9f46faf0d4197bf66545014a3572cc5e6d6d

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\System\Apps.txt

Filesize
6KB

MD5
75f8252b8fe2f717259c3fd8c976b63d

SHA1
a394178778b387493861fd6eef1d382e98453da1

SHA256
b14f4d4aa92f5bbe08cff52fcaa01536ea6d0defedf4609d387c51c33f8ca4d2

SHA512
551c49bb352469f238b721a103637f37e038d82420463c662ce5f6f484f95e384e91203b127a62993b9267ca1716d57e0b583d750e6be182bb3d7fb802e4b9ba

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\System\Debug.txt

Filesize
1KB

MD5
06e01737de65de82fc4e14ba3c7ed419

SHA1
e1ecdd1ecdf6e5b5bf649aa1d5f6f459c31cffa0

SHA256
cbf90019469ddaaaee95bfa6110288cf566b48fb47005a69c1e4c007e9f1f3c7

SHA512
121f206952d1588c81a88502a7358740f292af1513f0baf24c918d1d7309e42904122b1ae8a36b81f7ff511b45efab60eb05f7028fffc37ce1c12cfd2f5758ff

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\System\Process.txt

Filesize
4KB

MD5
0be0eefad8f687ca7de6ffbfc3add91b

SHA1
3a29365d312dead7a9207ec65cc84b54d2298ae0

SHA256
8c565f593fa436fc1ff6b323b7c586a4289604117535f244bab00e2c2d71cf6e

SHA512
4a2c69b1ce8b1d9b716e3be458bd74a2a3d62e84ac6011c724742706f2d9116b98dca832f7ede9d6fbf928f5ef97a96f58fe2bc1ee8d78eca462afd7213f70f9

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\Admin@NPCDUADC_en-US\System\ProductKey.txt

Filesize
29B

MD5
71eb5479298c7afc6d126fa04d2a9bde

SHA1
a9b3d5505cf9f84bb6c2be2acece53cb40075113

SHA256
f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3

SHA512
7c6687e21d31ec1d6d2eff04b07b465f875fd80df26677f1506b14158444cf55044eb6674880bd5bd44f04ff73023b26cb19b8837427a1d6655c96df52f140bd

Download Submit
C:\Users\Admin\AppData\Local\c874bf29084fdefd3f3457e6f1b1330c\msgid.dat

Filesize
19B

MD5
371a740a1dd72ec83bcdf541b5389a1a

SHA1
8d277ab525874b7c10b9bc4154221e039ec69812

SHA256
f3378d47d5d3d0bcdf11bb6dbe62f931f8e5188ef49defb3dfa8fbc3a7e19b42

SHA512
77c9a82cf6f37473df59c2c93ad9c1785cfd73cece3842f5dacc4f272d65620ccbccfaff56db7cf22e2704a2efb0b5ecc8b923269a1f80a443dc45c94c19970d

Download Submit
memory/3920-8-0x00000000746A0000-0x0000000074E51000-memory.dmp

Filesize
7.7MB

Download
memory/3920-7-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/3920-73-0x0000000007B90000-0x0000000008136000-memory.dmp

Filesize
5.6MB

Download
memory/3920-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

Filesize
4KB

Download
memory/3920-10-0x0000000005DB0000-0x0000000005DD6000-memory.dmp

Filesize
152KB

Download
memory/3920-9-0x0000000005D10000-0x0000000005DB0000-memory.dmp

Filesize
640KB

Download
memory/3920-194-0x0000000006D70000-0x0000000006DEA000-memory.dmp

Filesize
488KB

Download
memory/3920-11-0x0000000006BE0000-0x0000000006BEA000-memory.dmp

Filesize
40KB

Download
memory/3920-12-0x0000000006BF0000-0x0000000006BF8000-memory.dmp

Filesize
32KB

Download
memory/3920-70-0x0000000007300000-0x0000000007392000-memory.dmp

Filesize
584KB

Download
memory/3920-3-0x00000000746A0000-0x0000000074E51000-memory.dmp

Filesize
7.7MB

Download
memory/3920-2-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/3920-263-0x0000000007160000-0x0000000007212000-memory.dmp

Filesize
712KB

Download
memory/3920-265-0x0000000007210000-0x0000000007232000-memory.dmp

Filesize
136KB

Download
memory/3920-266-0x0000000008140000-0x0000000008497000-memory.dmp

Filesize
3.3MB

Download
memory/3920-13-0x0000000006C10000-0x0000000006C2E000-memory.dmp

Filesize
120KB

Download
memory/3920-1-0x0000000000A90000-0x0000000000C26000-memory.dmp

Filesize
1.6MB

Download
memory/3920-280-0x00000000746A0000-0x0000000074E51000-memory.dmp

Filesize
7.7MB

Download