stealc | 41fe619fbe5a96e2be0cc43ca6e2ab6712b2914b5dfa08cb2ee4f5a43248bbe0

General

Target
file.exe
Size 2.4MB
Sample240711-17xpysyfpc
SHA256 41fe619fbe5a96e2be0cc43ca6e2ab6712b2914b5dfa08cb2ee4f5a43248bbe0
MD5 7ccebfe91b4c5b3c8feec467941c3557
SHA1 a3ddf2da7133f6b2478eaaaccf98c3fe12e6db69
SHA512 5b09099bfea89b8d14ce2f610b0471d536d56a53bc580b3315a7c81a99511809495e75a93185728b906a4bccbbef9f3cbe0bc899bde44cfbbdaa455b80673635
SSDEEP 49152:2JkMGnfYQFtf7CZvtpIhivte1xNIgRL13DpIwtSqaL:PTnfYQFtf7CNjtAvh1awt
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc hate discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

hate

C2

http://85.28.47.30

Attributes

url_path
/920475a59bac849d.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	file.exe
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
4496	file.exe
4496	file.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4496	file.exe
4496	file.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4496	file.exe
4496	file.exe
4496	file.exe
4496	file.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4496	file.exe
1524	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 3960	4496	file.exe	88
PID 4496 wrote to memory of 3960	4496	file.exe	88
PID 4496 wrote to memory of 3960	4496	file.exe	88
PID 4496 wrote to memory of 1524	4496	file.exe	90
PID 4496 wrote to memory of 1524	4496	file.exe	90
PID 4496 wrote to memory of 1524	4496	file.exe	90

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CGDHIEGCFH.exe"
  2⤵
  PID:3960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\GDHDHJEBGH.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  PID:1524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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CGDHIEGCFH.exe

Path C:\Users\Admin\AppData\Local\Temp\CGDHIEGCFH.exe
Size 162B
SHA256 340c8464c2007ce3f80682e15dfafa4180b641d53c14201b929906b7b0284d87
MD5 1b7c22a214949975556626d7217e9a39
SHA1 d01c97e2944166ed23e47e4a62ff471ab8fa031f
SHA512 ba64847cf1d4157d50abe4f4a1e5c1996fe387c5808e2f758c7fb3213bfefe1f3712d343f0c30a16819749840954654a70611d2250fd0f7b032429db7afd2cc5
MD5 SHA1 SHA512

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memory/4496-0-0x0000000000CF0000-0x00000000018D6000-memory.dmp

Download

memory/4496-1-0x000000007EEA0000-0x000000007F271000-memory.dmp

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memory/4496-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/4496-76-0x0000000000CF0000-0x00000000018D6000-memory.dmp

Download

memory/4496-78-0x000000007EEA0000-0x000000007F271000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads