stealc | 05999a0d0e1c377026f3b4226305de14445658c1d67a9aea5b893548352fb89e

General

Target

SecuriteInfocomWin32RATXg.exe
Size

7.2MB
MD5

107e19edf19eeab1bcf4278e4c2e6046
SHA1

5a0d934e40701f68942cffaca49d4af14f45943a
SHA256

05999a0d0e1c377026f3b4226305de14445658c1d67a9aea5b893548352fb89e
SHA512

588635b932216cae163fa1c44ac72a4552014827aab6e4eaac63660946716f3bb6074fa1fa72ad78ed390a4a7943a3f4233ca7711f22d111347288ba306eca91
SSDEEP

196608:G0Ndo0wZsyG7tN166wmvNx/A3PLBfTDeLU4o4e:G/nG7tz69Wxo/LJTydo4e

Score

10^/10

stealc spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://94.130.170.32/7ea86bf53b29dae5.php

Signatures

Detects Stealc stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/380-142-0x0000000000400000-0x0000000000629000-memory.dmp	family_stealc
behavioral2/memory/380-143-0x0000000000400000-0x0000000000629000-memory.dmp	family_stealc

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

Loads dropped DLL 2 IoCs

pid	Process
380	AddInProcess32.exe
380	AddInProcess32.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2032 set thread context of 380	2032	SecuriteInfocomWin32RATXg.exe	99

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	AddInProcess32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2032	SecuriteInfocomWin32RATXg.exe
2032	SecuriteInfocomWin32RATXg.exe
2032	SecuriteInfocomWin32RATXg.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe
380	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	SecuriteInfocomWin32RATXg.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99
PID 2032 wrote to memory of 380	2032	SecuriteInfocomWin32RATXg.exe	99

C:\Users\Admin\AppData\Local\Temp\SecuriteInfocomWin32RATXg.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfocomWin32RATXg.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

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/380-142-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/380-145-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/380-143-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2032-136-0x0000000005390000-0x0000000005422000-memory.dmp

Filesize
584KB

Download
memory/2032-139-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/2032-140-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/2032-141-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/2032-138-0x0000000005330000-0x000000000533A000-memory.dmp

Filesize
40KB

Download
memory/2032-137-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/2032-133-0x0000000000CD0000-0x0000000001414000-memory.dmp

Filesize
7.3MB

Download
memory/2032-135-0x00000000058A0000-0x0000000005E44000-memory.dmp

Filesize
5.6MB

Download
memory/2032-134-0x0000000005250000-0x00000000052EC000-memory.dmp

Filesize
624KB

Download

Analysis

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