stealc | 8aef68cf6479e2e614efb16018250ccaf84ac50adaea39ba9554f934f2b6497e

General

Target

tmp.exe
Size

286KB
MD5

b577c47aa071b75634a4e10a2ca2f63b
SHA1

1198c518490434915efc7fb368bf5d1259855975
SHA256

8aef68cf6479e2e614efb16018250ccaf84ac50adaea39ba9554f934f2b6497e
SHA512

97f18fb8da882c4d4296dc9e5a258586703cc13052908866160b793e5c844db15f9451d96513dbdfd7757affccb165b60787ac00fc69eefba5d57427562da022
SSDEEP

3072:+myDA8/GeFlY8r+XNdnJSSnjshFTOM6fZFmZI5i+p1t0dj9X5cdA:ZlqQ4bv2Sm5xt0dj9Xi

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes

url_path
/3cd2b41cbde8fc9c.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

HDBGHIDGDG.exe

pid process

2408 HDBGHIDGDG.exe
Loads dropped DLL 3 IoCs

Processes:

tmp.execmd.exe

pid process

1372 tmp.exe
1372 tmp.exe
2892 cmd.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
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2408	HDBGHIDGDG.exe

pid	process
1372	tmp.exe
1372	tmp.exe
2892	cmd.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

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	tmp.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1940 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

tmp.exe

pid process

1372 tmp.exe
1372 tmp.exe

pid	process
1940	PING.EXE

pid	process
1372	tmp.exe
1372	tmp.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

tmp.execmd.exeHDBGHIDGDG.execmd.exe

description	pid	process	target process
PID 1372 wrote to memory of 2892	1372	tmp.exe	cmd.exe
PID 1372 wrote to memory of 2892	1372	tmp.exe	cmd.exe
PID 1372 wrote to memory of 2892	1372	tmp.exe	cmd.exe
PID 1372 wrote to memory of 2892	1372	tmp.exe	cmd.exe
PID 2892 wrote to memory of 2408	2892	cmd.exe	HDBGHIDGDG.exe
PID 2892 wrote to memory of 2408	2892	cmd.exe	HDBGHIDGDG.exe
PID 2892 wrote to memory of 2408	2892	cmd.exe	HDBGHIDGDG.exe
PID 2892 wrote to memory of 2408	2892	cmd.exe	HDBGHIDGDG.exe
PID 2408 wrote to memory of 2660	2408	HDBGHIDGDG.exe	cmd.exe
PID 2408 wrote to memory of 2660	2408	HDBGHIDGDG.exe	cmd.exe
PID 2408 wrote to memory of 2660	2408	HDBGHIDGDG.exe	cmd.exe
PID 2408 wrote to memory of 2660	2408	HDBGHIDGDG.exe	cmd.exe
PID 2660 wrote to memory of 1940	2660	cmd.exe	PING.EXE
PID 2660 wrote to memory of 1940	2660	cmd.exe	PING.EXE
PID 2660 wrote to memory of 1940	2660	cmd.exe	PING.EXE
PID 2660 wrote to memory of 1940	2660	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1372

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HDBGHIDGDG.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2892

C:\Users\Admin\AppData\Local\Temp\HDBGHIDGDG.exe
"C:\Users\Admin\AppData\Local\Temp\HDBGHIDGDG.exe"
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HDBGHIDGDG.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:2660

C:\Windows\SysWOW64\PING.EXE
ping 2.2.2.2 -n 1 -w 3000
5⤵
- Runs ping.exe
PID:1940

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HDBGHIDGDG.exe
Filesize
106KB

MD5
fe380780b5c35bd6d54541791151c2be

SHA1
7fe3a583cf91474c733f85cebf3c857682e269e1

SHA256
b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

SHA512
ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

Download Submit
\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/1372-64-0x0000000000400000-0x0000000000AF1000-memory.dmp

Filesize
6.9MB

Download
memory/1372-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1372-3-0x0000000000400000-0x0000000000AF1000-memory.dmp

Filesize
6.9MB

Download
memory/1372-1-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/1372-68-0x0000000000400000-0x0000000000AF1000-memory.dmp

Filesize
6.9MB

Download
memory/1372-2-0x0000000000220000-0x0000000000247000-memory.dmp

Filesize
156KB

Download
memory/1372-69-0x0000000000BA0000-0x0000000000CA0000-memory.dmp

Filesize
1024KB

Download
memory/2408-73-0x0000000000BF0000-0x0000000000C10000-memory.dmp

Filesize
128KB

Download
memory/2408-74-0x0000000073A70000-0x000000007415E000-memory.dmp

Filesize
6.9MB

Download
memory/2408-75-0x0000000004290000-0x00000000042D0000-memory.dmp

Filesize
256KB

Download
memory/2408-77-0x0000000073A70000-0x000000007415E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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