stealc | 9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9

General

Target

9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe
Size

363KB
MD5

dc860de2a24ea3e15c496582af59b9cb
SHA1

10b23badfb0b31fdeabd8df757a905e394201ec3
SHA256

9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9
SHA512

132dad93963cd019fa8fc012f4c780d2ab557e9053afe3f7d4334e247deb77c07bb01c8c5f9c05e9c721d3fe8e6ec29af83b7bb7bf1ad925fae7695ed5cfc3db
SSDEEP

6144:iUwFzqlqyEURK9rod9/or4txXZ1l4PyT6qdgNkwhjfdnw/omUS29zf7PT:zwFzqsynqM/M4tLw6DgNkQjfdwAZDPT

Score

10^/10

stealc default credential_access discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://95.217.96.249

Attributes

url_path
/bc00174e4ec6d418.php

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
2264	MSBuild.exe
2264	MSBuild.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5092	4412	WerFault.exe	72

System Location Discovery: System Language Discovery 1 TTPs 2 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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2264	MSBuild.exe
2264	MSBuild.exe
2264	MSBuild.exe
2264	MSBuild.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 2008	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	73
PID 4412 wrote to memory of 2008	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	73
PID 4412 wrote to memory of 2008	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	73
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74
PID 4412 wrote to memory of 2264	4412	9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe	74

C:\Users\Admin\AppData\Local\Temp\9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe
"C:\Users\Admin\AppData\Local\Temp\9211154f8bd85ce85c52cfe91538e6ba2a25704b6efb84c64460ba4da20fa1a9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2008
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4412 -s 292
  2⤵
  - Program crash
  PID:5092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2264-1-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2264-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2264-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2264-5-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2264-63-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4412-0-0x0000000001017000-0x0000000001018000-memory.dmp

Filesize
4KB

Download

Analysis

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