stealc | 65356ac76d8f957aae149b790e52305ea0b285fe157a1e438c4500abc9bb810a

General

Target

65db2eb88c0efcfc9f58d8d7b47320a0N.exe
Size

217KB
MD5

65db2eb88c0efcfc9f58d8d7b47320a0
SHA1

f55df2d7ad79f6ac232cb1734c37ff97184f22fb
SHA256

65356ac76d8f957aae149b790e52305ea0b285fe157a1e438c4500abc9bb810a
SHA512

b1117b8145b9496c5e98b0ed5ab368bd8109f199ddbf5aceca0bcab2c27a8a5212f1c04bb0e066bf20d56ed1f16e50273b1e18ebcf2b6aa9fb124620e9bb6e32
SSDEEP

3072:FUcJWOKIpK3eTm+o21xroGhtypsch2wJYPPEV5g9Mo5yurTisSWWqwdASPF1CoIu:wqpcejo21doGssckZKsZQKTdyu0TCqEO

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Suspicious use of SetThreadContext 1 IoCs

Processes:

65db2eb88c0efcfc9f58d8d7b47320a0N.exe

description pid process target process

PID 2652 set thread context of 2808 2652 65db2eb88c0efcfc9f58d8d7b47320a0N.exe RegAsm.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2836 2808 WerFault.exe RegAsm.exe

description	pid	process	target process
PID 2652 set thread context of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe

pid	pid_target	process	target process
2836	2808	WerFault.exe	RegAsm.exe

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

Processes:

65db2eb88c0efcfc9f58d8d7b47320a0N.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65db2eb88c0efcfc9f58d8d7b47320a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

65db2eb88c0efcfc9f58d8d7b47320a0N.exeRegAsm.exe

description	pid	process	target process
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2652 wrote to memory of 2808	2652	65db2eb88c0efcfc9f58d8d7b47320a0N.exe	RegAsm.exe
PID 2808 wrote to memory of 2836	2808	RegAsm.exe	WerFault.exe
PID 2808 wrote to memory of 2836	2808	RegAsm.exe	WerFault.exe
PID 2808 wrote to memory of 2836	2808	RegAsm.exe	WerFault.exe
PID 2808 wrote to memory of 2836	2808	RegAsm.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\65db2eb88c0efcfc9f58d8d7b47320a0N.exe
"C:\Users\Admin\AppData\Local\Temp\65db2eb88c0efcfc9f58d8d7b47320a0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 252
3⤵
- Program crash
PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2652-17-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2652-1-0x00000000001A0000-0x00000000001D8000-memory.dmp

Filesize
224KB

Download
memory/2652-12-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2652-0-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/2808-14-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-5-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-11-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-8-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2808-16-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download

Analysis

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