stealerium | c3dafbad6be507eeb1aae425a272c3b4d13cd0a09b9aebd19f394905d6fed0bc

General

Target

build.exe
Size

1.6MB
MD5

88b62ca6531c676001e10fd43f850a88
SHA1

2319e2843cf44ee3c17e851da51e86588bde519b
SHA256

c3dafbad6be507eeb1aae425a272c3b4d13cd0a09b9aebd19f394905d6fed0bc
SHA512

03f52ee8313e89df5f94443136253680dbbef74938829f182e48a39fb7cfcd6237746ce40bc420c6c327d77ccd102c2446ca4aa069742dcf63f5e184c93fbc9b
SSDEEP

49152:HcTq24GjdGSiqkqXfd+/9AqYanieKdYI:H9EjdGSiqkqXf0FLYW

Score

10^/10

stealerium collection spyware stealer

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1239914082392604683/8MwJmGML3JHYBJt67peidNxqFTTJiCo_BXGpRMkTB-A-w4MuvsVdlsAH3u2bRi9c2HZv

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:

build.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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

Processes:

flow ioc

24 discord.com
25 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

27 icanhazip.com

flow	ioc
24	discord.com
25	discord.com

flow	ioc
27	icanhazip.com

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:

build.exe

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 26 IoCs

Processes:

build.exe

pid	process
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe
3268	build.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

build.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 3268 build.exe
Token: SeSecurityPrivilege 4316 msiexec.exe

description	pid	process
Token: SeDebugPrivilege	3268	build.exe
Token: SeSecurityPrivilege	4316	msiexec.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

build.execmd.execmd.exe

description	pid	process	target process
PID 3268 wrote to memory of 2620	3268	build.exe	cmd.exe
PID 3268 wrote to memory of 2620	3268	build.exe	cmd.exe
PID 3268 wrote to memory of 2620	3268	build.exe	cmd.exe
PID 2620 wrote to memory of 4384	2620	cmd.exe	chcp.com
PID 2620 wrote to memory of 4384	2620	cmd.exe	chcp.com
PID 2620 wrote to memory of 4384	2620	cmd.exe	chcp.com
PID 2620 wrote to memory of 2760	2620	cmd.exe	netsh.exe
PID 2620 wrote to memory of 2760	2620	cmd.exe	netsh.exe
PID 2620 wrote to memory of 2760	2620	cmd.exe	netsh.exe
PID 2620 wrote to memory of 5116	2620	cmd.exe	findstr.exe
PID 2620 wrote to memory of 5116	2620	cmd.exe	findstr.exe
PID 2620 wrote to memory of 5116	2620	cmd.exe	findstr.exe
PID 3268 wrote to memory of 4084	3268	build.exe	cmd.exe
PID 3268 wrote to memory of 4084	3268	build.exe	cmd.exe
PID 3268 wrote to memory of 4084	3268	build.exe	cmd.exe
PID 4084 wrote to memory of 4544	4084	cmd.exe	chcp.com
PID 4084 wrote to memory of 4544	4084	cmd.exe	chcp.com
PID 4084 wrote to memory of 4544	4084	cmd.exe	chcp.com
PID 4084 wrote to memory of 3296	4084	cmd.exe	netsh.exe
PID 4084 wrote to memory of 3296	4084	cmd.exe	netsh.exe
PID 4084 wrote to memory of 3296	4084	cmd.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

build.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	build.exe

outlook_win_path 1 IoCs

Processes:

build.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3268

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
2⤵
- Suspicious use of WriteProcessMemory
PID:2620

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:4384

C:\Windows\SysWOW64\netsh.exe
netsh wlan show profile
3⤵
PID:2760

C:\Windows\SysWOW64\findstr.exe
findstr All
3⤵
PID:5116

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
2⤵
- Suspicious use of WriteProcessMemory
PID:4084

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:4544

C:\Windows\SysWOW64\netsh.exe
netsh wlan show networks mode=bssid
3⤵
PID:3296

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4268,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:8
1⤵
PID:3308

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4316

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\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\Browsers\Firefox\Bookmarks.txt
Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\Directories\OneDrive.txt
Filesize
25B

MD5
966247eb3ee749e21597d73c4176bd52

SHA1
1e9e63c2872cef8f015d4b888eb9f81b00a35c79

SHA256
8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e

SHA512
bd30aec68c070e86e3dec787ed26dd3d6b7d33d83e43cb2d50f9e2cff779fee4c96afbbe170443bd62874073a844beb29a69b10c72c54d7d444a8d86cfd7b5aa

Download Submit
C:\Users\Admin\AppData\Local\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\Directories\Startup.txt
Filesize
24B

MD5
68c93da4981d591704cea7b71cebfb97

SHA1
fd0f8d97463cd33892cc828b4ad04e03fc014fa6

SHA256
889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483

SHA512
63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

Download Submit
C:\Users\Admin\AppData\Local\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\Directories\Videos.txt
Filesize
23B

MD5
1fddbf1169b6c75898b86e7e24bc7c1f

SHA1
d2091060cb5191ff70eb99c0088c182e80c20f8c

SHA256
a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733

SHA512
20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

Download Submit
C:\Users\Admin\AppData\Local\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\System\Apps.txt
Filesize
6KB

MD5
ca7688f6e03ce9e602097953acd7fb85

SHA1
1273b48906afd9dd9c1ace2f4626e0ab7e3d0dbc

SHA256
26945213bb4d5f0c092c53986f53e75a86a318a62a744e2a396a4bb6960f6c80

SHA512
7433a033eaf84a6eaa66296561910b7ca9c30756bb92a1edee47d5b1f2b7e8e0343b13a6709e1ec8e5e607ade6308f30e6bc44b1e762ce3ab2f966a8f4f49a91

Download Submit
C:\Users\Admin\AppData\Local\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\System\Process.txt
Filesize
4KB

MD5
698aff86d892892bbbe465089a620166

SHA1
05be52df101ac4c8a887a1704e8c0dd37b9e7bef

SHA256
b5df58a0d51410230af824edb5cafe14fcffb53ddeaa35a0145522e0edd624cf

SHA512
470d4f69270dee2270fdbeef221cdb1d17e544c2ea9425c503611db1df1e7f407d3eae4d6d06ebc1e37d6041324fad5fed2ea4497e07e045f3ba1cb233d5c245

Download Submit
C:\Users\Admin\AppData\Local\c794ea21f9a1f6f5b9450ab9122fcf08\Admin@GYLQWJCN_en-US\System\ProductKey.txt
Filesize
29B

MD5
71eb5479298c7afc6d126fa04d2a9bde

SHA1
a9b3d5505cf9f84bb6c2be2acece53cb40075113

SHA256
f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3

SHA512
7c6687e21d31ec1d6d2eff04b07b465f875fd80df26677f1506b14158444cf55044eb6674880bd5bd44f04ff73023b26cb19b8837427a1d6655c96df52f140bd

Download Submit
memory/3268-5-0x0000000005740000-0x0000000005766000-memory.dmp

Filesize
152KB

Download
memory/3268-0-0x000000007500E000-0x000000007500F000-memory.dmp

Filesize
4KB

Download
memory/3268-9-0x00000000066C0000-0x00000000066DE000-memory.dmp

Filesize
120KB

Download
memory/3268-7-0x0000000006690000-0x000000000669A000-memory.dmp

Filesize
40KB

Download
memory/3268-51-0x0000000006B30000-0x0000000006BC2000-memory.dmp

Filesize
584KB

Download
memory/3268-62-0x0000000007700000-0x0000000007CA4000-memory.dmp

Filesize
5.6MB

Download
memory/3268-6-0x0000000005770000-0x0000000005778000-memory.dmp

Filesize
32KB

Download
memory/3268-8-0x00000000066A0000-0x00000000066A8000-memory.dmp

Filesize
32KB

Download
memory/3268-193-0x00000000067D0000-0x000000000684A000-memory.dmp

Filesize
488KB

Download
memory/3268-4-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/3268-3-0x0000000075000000-0x00000000757B0000-memory.dmp

Filesize
7.7MB

Download
memory/3268-2-0x0000000005170000-0x00000000051D6000-memory.dmp

Filesize
408KB

Download
memory/3268-1-0x0000000000600000-0x0000000000794000-memory.dmp

Filesize
1.6MB

Download
memory/3268-260-0x0000000006A30000-0x0000000006AE2000-memory.dmp

Filesize
712KB

Download
memory/3268-261-0x0000000006AE0000-0x0000000006B02000-memory.dmp

Filesize
136KB

Download
memory/3268-262-0x0000000007EB0000-0x0000000008204000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads