stealc | 1444e7ad891b326acfac08ff3ea0e68125318aec362e56299a4d529bcfb2c1be

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 15:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

$TEMP/syncUpd.exe
Size

282KB
MD5

45d22efe66c3573da47197ff44dd54f2
SHA1

5c426bc365f775fbb433e2219c0dd2d146fc4cfc
SHA256

e1cd1d1df222eeb723bc22f7ae326c151ea73ae6ef7c571516efe0dc1e2546fb
SHA512

f22efc1de7fa66019e82040298c5285e06a8d5e1d9ac1478aaf478b99814002ba027056db3528d9d5ef451e542b70cfe2a12f17503fdce9c9f779dfe92c0524f
SSDEEP

3072:8P+bpittdpFpZltTlZoTIkLd1xBGBfqt+N548NXtTJs8+SGT:EpttPFzno1xcBqtse8XCj

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

Executes dropped EXE 1 IoCs

pid	Process
2376	IIJJDGHJKK.exe

Loads dropped DLL 3 IoCs

pid	Process
1936	syncUpd.exe
1936	syncUpd.exe
1904	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-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ledger-Live Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IIJJDGHJKK.exe"	IIJJDGHJKK.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
2012	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1936	syncUpd.exe
1936	syncUpd.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe
2376	IIJJDGHJKK.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	IIJJDGHJKK.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 1904	1936	syncUpd.exe	31
PID 1936 wrote to memory of 1904	1936	syncUpd.exe	31
PID 1936 wrote to memory of 1904	1936	syncUpd.exe	31
PID 1936 wrote to memory of 1904	1936	syncUpd.exe	31
PID 1936 wrote to memory of 2236	1936	syncUpd.exe	33
PID 1936 wrote to memory of 2236	1936	syncUpd.exe	33
PID 1936 wrote to memory of 2236	1936	syncUpd.exe	33
PID 1936 wrote to memory of 2236	1936	syncUpd.exe	33
PID 1904 wrote to memory of 2376	1904	cmd.exe	35
PID 1904 wrote to memory of 2376	1904	cmd.exe	35
PID 1904 wrote to memory of 2376	1904	cmd.exe	35
PID 1904 wrote to memory of 2376	1904	cmd.exe	35
PID 2376 wrote to memory of 1396	2376	IIJJDGHJKK.exe	36
PID 2376 wrote to memory of 1396	2376	IIJJDGHJKK.exe	36
PID 2376 wrote to memory of 1396	2376	IIJJDGHJKK.exe	36
PID 2376 wrote to memory of 1396	2376	IIJJDGHJKK.exe	36
PID 1396 wrote to memory of 2012	1396	cmd.exe	38
PID 1396 wrote to memory of 2012	1396	cmd.exe	38
PID 1396 wrote to memory of 2012	1396	cmd.exe	38
PID 1396 wrote to memory of 2012	1396	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\IIJJDGHJKK.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1904
- - C:\Users\Admin\AppData\Local\Temp\IIJJDGHJKK.exe
    "C:\Users\Admin\AppData\Local\Temp\IIJJDGHJKK.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2376
  - - 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\IIJJDGHJKK.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1396
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        5⤵
        Runs ping.exe
        
        PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\JJKFBAKFBG.exe"
  2⤵
  PID:2236

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

Loading Replay Monitor...

Downloads

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

Filesize
101KB

MD5
42b838cf8bdf67400525e128d917f6e0

SHA1
a578f6faec738912dba8c41e7abe1502c46d0cae

SHA256
0e4ffba62ce9a464aa1b7ff9f1e55ace8f51ff1e15102d856f801a81f8b4607d

SHA512
f64b39d885375251ab7db72c57dc5b5095f0c6412169f1035d1f6a25b8415a2a01004d06bfa0267cf683ef7dea7a9f969ad43fde5a4376f1fcb65a57403433c0

Download Submit
\ProgramData\mozglue.dll

Filesize
576KB

MD5
d59c557dbf26c0d10b81c8ed2a83919b

SHA1
a4b24205b2f6b775453d42934bfddb3ec0325cef

SHA256
947b04110fc584fc7cf02f993cdef8509dd617dd648ec51deec2a97be6ea1a18

SHA512
8a2a89a45058fdebede4649843b547721b22eb733ddbfe9dc55b57e2d3d64c444d613fe724bb54199aef11c3be5640e92bf55d696f0f95054dafd2d7022820ed

Download Submit
\ProgramData\nss3.dll

Filesize
706KB

MD5
8545b24c0c7ee6b6fefe1905fcebe02e

SHA1
9ffa25e03ad5c8f94832c52d84c984b62bc4bf18

SHA256
87a717ed39b1eb661976720b62a23afa8b92b2659bae34937430f09186e6faca

SHA512
fa99d9012d76e1408dea5abbb3777612552ed61c27282219913a26c53ef2d9114c936749c40c1dd9bd5730af8f5aa3f3f907f7cde5e172cbd5175bd7ef44d417

Download Submit
memory/1936-66-0x0000000000400000-0x0000000001A32000-memory.dmp

Filesize
22.2MB

Download
memory/1936-2-0x00000000001B0000-0x00000000001D7000-memory.dmp

Filesize
156KB

Download
memory/1936-43-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1936-44-0x0000000000400000-0x0000000001A32000-memory.dmp

Filesize
22.2MB

Download
memory/1936-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1936-51-0x0000000000400000-0x0000000001A32000-memory.dmp

Filesize
22.2MB

Download
memory/1936-3-0x0000000000400000-0x0000000001A32000-memory.dmp

Filesize
22.2MB

Download
memory/1936-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1936-69-0x0000000000400000-0x0000000001A32000-memory.dmp

Filesize
22.2MB

Download
memory/1936-36-0x0000000000400000-0x0000000001A32000-memory.dmp

Filesize
22.2MB

Download
memory/1936-75-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2236-107-0x00000000021B0000-0x00000000021B1000-memory.dmp

Filesize
4KB

Download
memory/2376-93-0x00000000000D0000-0x00000000000EE000-memory.dmp

Filesize
120KB

Download
memory/2376-106-0x0000000072CC0000-0x00000000733AE000-memory.dmp

Filesize
6.9MB

Download
memory/2376-112-0x0000000004B10000-0x0000000004B50000-memory.dmp

Filesize
256KB

Download
memory/2376-117-0x0000000072CC0000-0x00000000733AE000-memory.dmp

Filesize
6.9MB

Download
memory/2376-118-0x0000000004B10000-0x0000000004B50000-memory.dmp

Filesize
256KB

Download