stealc | b04bb88f116e333a5282fcc85205e822b4f3ddb4fb900ff6aab1199537905eea

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 09:53

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General

Target

$TEMP/syncUpd.exe
Size

237KB
MD5

04bd95c49dbb7391d08d08e5717e8e3f
SHA1

daf5d5b340c8a2265709963ae23c89ee18e29720
SHA256

7aeafe5281075a0385c73e55edc9cac577968b623e33961975174af6ce8355fb
SHA512

13aa59ac47a8401f7913551eeacb097af596d5096122b1309b75bb04efa94018897895a47890b05b21b0ad8e078e7b172a132897e8dae6745ab8b3da7f611d05
SSDEEP

3072:5Tuy47ZIsY2azZFoN3jY15e7EfTmxt84Z1LbeMDpfM:5MF7a7q3jYTOGmfXiMd

Score

10^/10

stealc discovery persistence spyware stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.145

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

pid	Process
2432	DBGIJEHIID.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ledger-Live Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DBGIJEHIID.exe"	DBGIJEHIID.exe

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

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
956	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2004	syncUpd.exe
2004	syncUpd.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe
2432	DBGIJEHIID.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	DBGIJEHIID.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1956	2004	syncUpd.exe	31
PID 2004 wrote to memory of 1956	2004	syncUpd.exe	31
PID 2004 wrote to memory of 1956	2004	syncUpd.exe	31
PID 2004 wrote to memory of 1956	2004	syncUpd.exe	31
PID 2004 wrote to memory of 2124	2004	syncUpd.exe	33
PID 2004 wrote to memory of 2124	2004	syncUpd.exe	33
PID 2004 wrote to memory of 2124	2004	syncUpd.exe	33
PID 2004 wrote to memory of 2124	2004	syncUpd.exe	33
PID 1956 wrote to memory of 2432	1956	cmd.exe	35
PID 1956 wrote to memory of 2432	1956	cmd.exe	35
PID 1956 wrote to memory of 2432	1956	cmd.exe	35
PID 1956 wrote to memory of 2432	1956	cmd.exe	35
PID 2432 wrote to memory of 832	2432	DBGIJEHIID.exe	36
PID 2432 wrote to memory of 832	2432	DBGIJEHIID.exe	36
PID 2432 wrote to memory of 832	2432	DBGIJEHIID.exe	36
PID 2432 wrote to memory of 832	2432	DBGIJEHIID.exe	36
PID 832 wrote to memory of 956	832	cmd.exe	38
PID 832 wrote to memory of 956	832	cmd.exe	38
PID 832 wrote to memory of 956	832	cmd.exe	38
PID 832 wrote to memory of 956	832	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\DBGIJEHIID.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Users\Admin\AppData\Local\Temp\DBGIJEHIID.exe
    "C:\Users\Admin\AppData\Local\Temp\DBGIJEHIID.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2432
  - - 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\DBGIJEHIID.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:832
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        5⤵
        Runs ping.exe
        
        PID:956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EBGDHJECFC.exe"
  2⤵
  PID:2124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DBGIJEHIID.exe

Filesize
101KB

MD5
42b838cf8bdf67400525e128d917f6e0

SHA1
a578f6faec738912dba8c41e7abe1502c46d0cae

SHA256
0e4ffba62ce9a464aa1b7ff9f1e55ace8f51ff1e15102d856f801a81f8b4607d

SHA512
f64b39d885375251ab7db72c57dc5b5095f0c6412169f1035d1f6a25b8415a2a01004d06bfa0267cf683ef7dea7a9f969ad43fde5a4376f1fcb65a57403433c0

Download Submit
memory/2004-71-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-2-0x00000000002A0000-0x00000000002C7000-memory.dmp

Filesize
156KB

Download
memory/2004-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2004-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2004-43-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-44-0x00000000002A0000-0x00000000002C7000-memory.dmp

Filesize
156KB

Download
memory/2004-45-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2004-55-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-3-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-67-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-33-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-74-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/2004-78-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2124-114-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/2432-110-0x0000000000190000-0x00000000001AE000-memory.dmp

Filesize
120KB

Download
memory/2432-112-0x00000000732A0000-0x000000007398E000-memory.dmp

Filesize
6.9MB

Download
memory/2432-116-0x0000000000240000-0x0000000000280000-memory.dmp

Filesize
256KB

Download
memory/2432-122-0x00000000732A0000-0x000000007398E000-memory.dmp

Filesize
6.9MB

Download
memory/2432-123-0x0000000000240000-0x0000000000280000-memory.dmp

Filesize
256KB

Download