stealc | 1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2

General

Target

1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe
Size

268KB
MD5

fbe22ae7b62aaab2e6ccbb60c9399d1d
SHA1

2ec9b7706a2c7df043ebd570f2aabb02bd49fd45
SHA256

1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2
SHA512

36d1db03f4d51d98b8220e7aa9e2083b6f88a6f019093f258274acbf8e804a0d882da998adefb291d0c213701ed051d48979b47c4886a384397275f374147d60
SSDEEP

3072:tuhu304GAUMd+w0SLHp4o6njQJp2m2ostoRfAI3iuaU9tRHcro:0Y304GApg2p/0jQJpCo9FiuaG

Score

10^/10

stealc soft credential_access discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

soft

C2

https://steamcommunity.com/profiles/76561198035868993

Attributes

url_path
/43e1e04e93874aba.php

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
4304	RegAsm.exe
4304	RegAsm.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
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
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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3180 set thread context of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86

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	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4304	RegAsm.exe
4304	RegAsm.exe
4304	RegAsm.exe
4304	RegAsm.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 2424	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	84
PID 3180 wrote to memory of 2424	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	84
PID 3180 wrote to memory of 2424	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	84
PID 3180 wrote to memory of 1032	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	85
PID 3180 wrote to memory of 1032	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	85
PID 3180 wrote to memory of 1032	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	85
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86
PID 3180 wrote to memory of 4304	3180	1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe	86

C:\Users\Admin\AppData\Local\Temp\1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe
"C:\Users\Admin\AppData\Local\Temp\1347a330c618a1e846b928e0e3f29a5f9c333d69f73a1cef6a5365f51f5a85a2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3180
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2424
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1032
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/3180-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/3180-1-0x0000000000C00000-0x0000000000C44000-memory.dmp

Filesize
272KB

Download
memory/3180-7-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/3180-107-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/4304-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4304-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4304-8-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4304-26-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4304-106-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download

Analysis

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