stealc | 5cfe847476e23f39427e88bdbbde46a71452f3da7a28371737b8232cc9b4590f

General

Target

A10A47CE1ACC4F462D6A65C5D9F49D04.exe
Size

2.1MB
MD5

a10a47ce1acc4f462d6a65c5d9f49d04
SHA1

973a2921c48e86012dd6c4e9e9dbf55b62c44b53
SHA256

5cfe847476e23f39427e88bdbbde46a71452f3da7a28371737b8232cc9b4590f
SHA512

d326afd67003cf13b35c3ebd92577ec8e0ea49f2eafe7876cf50f311fb8342f7ac4d5ef7f47b29ec7e56da7c8158f43039dbe183f18279f37de3fb8bac6f90c4
SSDEEP

24576:sERdpeWI3pfS+zvjOZzG8SOnoPGzhmcrfU:td2pf7vcjS3IAuU

Score

10^/10

stealc spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://94.130.186.149

Attributes

url_path
/7cbe0291fb78f157.php

rc4.plain

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
1532	InstallUtil.exe
1532	InstallUtil.exe

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 2836 set thread context of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1532	InstallUtil.exe
1532	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94
PID 2836 wrote to memory of 1532	2836	A10A47CE1ACC4F462D6A65C5D9F49D04.exe	94

C:\Users\Admin\AppData\Local\Temp\A10A47CE1ACC4F462D6A65C5D9F49D04.exe
"C:\Users\Admin\AppData\Local\Temp\A10A47CE1ACC4F462D6A65C5D9F49D04.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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/1532-35-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1532-119-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1532-42-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1532-40-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1532-37-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/2836-8-0x00000000055C0000-0x00000000055D0000-memory.dmp

Filesize
64KB

Download
memory/2836-29-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-9-0x00000000055A0000-0x00000000055BC000-memory.dmp

Filesize
112KB

Download
memory/2836-11-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-10-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-13-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-15-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-17-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-19-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-21-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-23-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-27-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-25-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-1-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/2836-31-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-33-0x00000000055A0000-0x00000000055B5000-memory.dmp

Filesize
84KB

Download
memory/2836-34-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/2836-7-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/2836-6-0x0000000005220000-0x000000000522A000-memory.dmp

Filesize
40KB

Download
memory/2836-38-0x00000000055C0000-0x00000000055D0000-memory.dmp

Filesize
64KB

Download
memory/2836-5-0x00000000055C0000-0x00000000055D0000-memory.dmp

Filesize
64KB

Download
memory/2836-41-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/2836-4-0x0000000005410000-0x00000000054AC000-memory.dmp

Filesize
624KB

Download
memory/2836-3-0x0000000005270000-0x0000000005302000-memory.dmp

Filesize
584KB

Download
memory/2836-2-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/2836-0-0x0000000000700000-0x0000000000916000-memory.dmp

Filesize
2.1MB

Download

Analysis

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