stealerium | 27fc27dc8fd2f14c597932236924b9bd221cbdf62e751b06654566df17e20e80

General

Target

nllauncher.exe
Size

1.6MB
MD5

8d19556ec36067d8cd6aca0181a60d6f
SHA1

d6b7827a278bde0072c6502137f3b48cd3c6fdd8
SHA256

27fc27dc8fd2f14c597932236924b9bd221cbdf62e751b06654566df17e20e80
SHA512

283ef56c211e43a850a7e08ea30da18f1aa5cec00636c48780d52cd1d350fe174b0ca9f3d6d9a92db72fe87b2822073703884aab999dc04821fbdf7c71369eea
SSDEEP

49152:EcTq24GjdGSiqkqXfd+/9AqYanieKdY9:E9EjdGSiqkqXf0FLYW

Score

10^/10

stealerium collection spyware stealer

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1085818065360535573/7X1FOgIeWfvo7Wm1i-5gmDKJfqx3bk315y0D-XXNtRIcxGsl95D_Vbwjx7jAmP_WpkUA

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
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

Processes:

nllauncher.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nllauncher.exe
Key opened	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nllauncher.exe
Key opened	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nllauncher.exe

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

Web Service
T1102

Processes:

flow ioc

1 discord.com
2 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.

Processes:

flow ioc

3 icanhazip.com
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3660 584 WerFault.exe nllauncher.exe

flow	ioc
1	discord.com
2	discord.com

flow	ioc
3	icanhazip.com

pid	pid_target	process	target process
3660	584	WerFault.exe	nllauncher.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

Processes:

nllauncher.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	nllauncher.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	nllauncher.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

nllauncher.exe

pid process

584 nllauncher.exe
584 nllauncher.exe
584 nllauncher.exe
584 nllauncher.exe
584 nllauncher.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

nllauncher.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 584 nllauncher.exe
Token: SeSecurityPrivilege 4672 msiexec.exe

pid	process
584	nllauncher.exe
584	nllauncher.exe
584	nllauncher.exe
584	nllauncher.exe
584	nllauncher.exe

description	pid	process
Token: SeDebugPrivilege	584	nllauncher.exe
Token: SeSecurityPrivilege	4672	msiexec.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

nllauncher.execmd.execmd.exe

description	pid	process	target process
PID 584 wrote to memory of 2544	584	nllauncher.exe	cmd.exe
PID 584 wrote to memory of 2544	584	nllauncher.exe	cmd.exe
PID 584 wrote to memory of 2544	584	nllauncher.exe	cmd.exe
PID 2544 wrote to memory of 1636	2544	cmd.exe	chcp.com
PID 2544 wrote to memory of 1636	2544	cmd.exe	chcp.com
PID 2544 wrote to memory of 1636	2544	cmd.exe	chcp.com
PID 2544 wrote to memory of 4688	2544	cmd.exe	netsh.exe
PID 2544 wrote to memory of 4688	2544	cmd.exe	netsh.exe
PID 2544 wrote to memory of 4688	2544	cmd.exe	netsh.exe
PID 2544 wrote to memory of 4736	2544	cmd.exe	findstr.exe
PID 2544 wrote to memory of 4736	2544	cmd.exe	findstr.exe
PID 2544 wrote to memory of 4736	2544	cmd.exe	findstr.exe
PID 584 wrote to memory of 3384	584	nllauncher.exe	cmd.exe
PID 584 wrote to memory of 3384	584	nllauncher.exe	cmd.exe
PID 584 wrote to memory of 3384	584	nllauncher.exe	cmd.exe
PID 3384 wrote to memory of 3060	3384	cmd.exe	chcp.com
PID 3384 wrote to memory of 3060	3384	cmd.exe	chcp.com
PID 3384 wrote to memory of 3060	3384	cmd.exe	chcp.com
PID 3384 wrote to memory of 3420	3384	cmd.exe	netsh.exe
PID 3384 wrote to memory of 3420	3384	cmd.exe	netsh.exe
PID 3384 wrote to memory of 3420	3384	cmd.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

nllauncher.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nllauncher.exe

outlook_win_path 1 IoCs

Processes:

nllauncher.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nllauncher.exe

C:\Users\Admin\AppData\Local\Temp\nllauncher.exe
"C:\Users\Admin\AppData\Local\Temp\nllauncher.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:584

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
2⤵
- Suspicious use of WriteProcessMemory
PID:2544

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1636

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
3⤵
PID:4688

C:\Windows\SysWOW64\findstr.exe
findstr All
3⤵
PID:4736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 584 -s 2868
2⤵
- Program crash
PID:3660

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
2⤵
- Suspicious use of WriteProcessMemory
PID:3384

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:3060

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
3⤵
PID:3420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 584 -ip 584
1⤵
PID:2016

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4672

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\e956dbf134d6a3785958acaeeb19db8a\Admin@GNMGPFVO_en-US\Browsers\Firefox\Bookmarks.txt
Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/584-9-0x00000000057B0000-0x00000000057B8000-memory.dmp

Filesize
32KB

Download
memory/584-2-0x00000000051B0000-0x0000000005216000-memory.dmp

Filesize
408KB

Download
memory/584-3-0x0000000074890000-0x0000000075041000-memory.dmp

Filesize
7.7MB

Download
memory/584-7-0x00000000056F0000-0x0000000005782000-memory.dmp

Filesize
584KB

Download
memory/584-8-0x0000000005780000-0x00000000057A6000-memory.dmp

Filesize
152KB

Download
memory/584-0-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download
memory/584-10-0x00000000066D0000-0x00000000066DA000-memory.dmp

Filesize
40KB

Download
memory/584-11-0x00000000066E0000-0x00000000066E8000-memory.dmp

Filesize
32KB

Download
memory/584-12-0x0000000006700000-0x000000000671E000-memory.dmp

Filesize
120KB

Download
memory/584-1-0x0000000000560000-0x00000000006F4000-memory.dmp

Filesize
1.6MB

Download
memory/584-69-0x00000000068E0000-0x0000000006972000-memory.dmp

Filesize
584KB

Download
memory/584-74-0x0000000007630000-0x0000000007BD6000-memory.dmp

Filesize
5.6MB

Download
memory/584-83-0x0000000074890000-0x0000000075041000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads