stealc | f85da1d5d82a48fb55553792f5f4e6f533bbab6f48cacaec8ba07a9fa311d4b3

General

Target

$TEMP/syncUpd.exe
Size

200KB
MD5

c722591f624fb69970f246b8c81d830f
SHA1

85516decea5d6987bebe39cbadf36053beaf4bb0
SHA256

13cd1152a19fdac6581cac2bd822f34bd3026ea1783ff231e299b6d28c046a6a
SHA512

822584c5c8a0813af4d845e80919776c71a43464ab719d1c303ebaae6a8ed47763183566bedc9be2e8c44de8ee6fd62d1e12be471e5d5c73ae4b1dcdaa34a908
SSDEEP

3072:8PDOu5suCmavnBRsuP6GTdbB27zP6FtHPUxX1GOL3+:455zaPBRPPj27uPH8jzu

Score

10^/10

stealc discovery persistence spyware stealer

Malware Config

Extracted

Family

stealc

C2

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

syncUpd.exeHCFCFHJDBK.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	syncUpd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	HCFCFHJDBK.exe

Executes dropped EXE 1 IoCs

Processes:

HCFCFHJDBK.exe

pid process

1012 HCFCFHJDBK.exe
Loads dropped DLL 2 IoCs

Processes:

syncUpd.exe

pid process

1616 syncUpd.exe
1616 syncUpd.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

pid	process
1012	HCFCFHJDBK.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

HCFCFHJDBK.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ledger-Live Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\HCFCFHJDBK.exe"	HCFCFHJDBK.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

Processes:

syncUpd.exe

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

Processes:

PING.EXE

pid process

3344 PING.EXE

pid	process
3344	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

syncUpd.exeHCFCFHJDBK.exe

pid	process
1616	syncUpd.exe
1616	syncUpd.exe
1616	syncUpd.exe
1616	syncUpd.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe
1012	HCFCFHJDBK.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

HCFCFHJDBK.exe

description pid process

Token: SeDebugPrivilege 1012 HCFCFHJDBK.exe

description	pid	process
Token: SeDebugPrivilege	1012	HCFCFHJDBK.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

syncUpd.execmd.exeHCFCFHJDBK.execmd.exe

description	pid	process	target process
PID 1616 wrote to memory of 2760	1616	syncUpd.exe	cmd.exe
PID 1616 wrote to memory of 2760	1616	syncUpd.exe	cmd.exe
PID 1616 wrote to memory of 2760	1616	syncUpd.exe	cmd.exe
PID 2760 wrote to memory of 1012	2760	cmd.exe	HCFCFHJDBK.exe
PID 2760 wrote to memory of 1012	2760	cmd.exe	HCFCFHJDBK.exe
PID 2760 wrote to memory of 1012	2760	cmd.exe	HCFCFHJDBK.exe
PID 1012 wrote to memory of 2796	1012	HCFCFHJDBK.exe	cmd.exe
PID 1012 wrote to memory of 2796	1012	HCFCFHJDBK.exe	cmd.exe
PID 1012 wrote to memory of 2796	1012	HCFCFHJDBK.exe	cmd.exe
PID 2796 wrote to memory of 3344	2796	cmd.exe	PING.EXE
PID 2796 wrote to memory of 3344	2796	cmd.exe	PING.EXE
PID 2796 wrote to memory of 3344	2796	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\syncUpd.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HCFCFHJDBK.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Users\Admin\AppData\Local\Temp\HCFCFHJDBK.exe
    "C:\Users\Admin\AppData\Local\Temp\HCFCFHJDBK.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1012
  - - 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\HCFCFHJDBK.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2796
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        5⤵
        Runs ping.exe
        
        PID:3344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

3

T1012

Remote System Discovery

1

T1018

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Are.docx

Filesize
11KB

MD5
a33e5b189842c5867f46566bdbf7a095

SHA1
e1c06359f6a76da90d19e8fd95e79c832edb3196

SHA256
5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

SHA512
f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

Download Submit
C:\ProgramData\mozglue.dll

Filesize
370KB

MD5
ab84d0717c64068ecc98d9537cb05992

SHA1
46c86676ca18bb2eb2a9e1a6a2ac8c566d0d253f

SHA256
56ba60707ae49b043c383577dfc0c1903381f7182c6032642143eae1cc098323

SHA512
6c71fd24b4c8a669b98ba6295a9885df8f2714094a270c2178aa84eadc63e033320160966d794493d0d2211ddccafa8b3079b21aad11088e091b8ae4d6b6a5cd

Download Submit
C:\ProgramData\mozglue.dll

Filesize
50KB

MD5
83cc7fb64bc7a1dafc515f2e0d24913c

SHA1
f3a0e591bed02d9bdfd08e6453eecee2998cd02d

SHA256
5af0344b728ae378364dda120511319ba7f317a505d16fa37740588d02a3f853

SHA512
cf8a7ee503875bc5285868c39c9b2acaace1d1e6229b5b82927016716e4ea0f0a223d04946c559f6219389c13a920fb2aece5a93a8e8f7f545934dbd43297753

Download Submit
C:\ProgramData\nss3.dll

Filesize
1.4MB

MD5
4e5e9f6f0e6af854c36ece97a1a87a1c

SHA1
6f261c819db27da201f285f525eedb076b806d5c

SHA256
3fe490d0a484d43f7349cece746daadf60e18eeab7cc35803d169c98a52a7091

SHA512
2c8984936031b721f39188b297dcf2c3041d9a0cad362aae739dde938abb1526324af280ed4bf3d62331f182254f49ed516dd7ddf4c3121c054b18a8f96d5bdf

Download Submit
C:\Users\Admin\AppData\Local\Temp\HCFCFHJDBK.exe

Filesize
101KB

MD5
42b838cf8bdf67400525e128d917f6e0

SHA1
a578f6faec738912dba8c41e7abe1502c46d0cae

SHA256
0e4ffba62ce9a464aa1b7ff9f1e55ace8f51ff1e15102d856f801a81f8b4607d

SHA512
f64b39d885375251ab7db72c57dc5b5095f0c6412169f1035d1f6a25b8415a2a01004d06bfa0267cf683ef7dea7a9f969ad43fde5a4376f1fcb65a57403433c0

Download Submit
memory/1012-105-0x0000000005210000-0x0000000005220000-memory.dmp

Filesize
64KB

Download
memory/1012-104-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1012-102-0x0000000005210000-0x0000000005220000-memory.dmp

Filesize
64KB

Download
memory/1012-100-0x0000000000770000-0x000000000078E000-memory.dmp

Filesize
120KB

Download
memory/1012-101-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1616-53-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/1616-79-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/1616-84-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/1616-78-0x00000000008F0000-0x00000000009F0000-memory.dmp

Filesize
1024KB

Download
memory/1616-96-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/1616-54-0x0000000000790000-0x00000000007B7000-memory.dmp

Filesize
156KB

Download
memory/1616-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

Filesize
1024KB

Download
memory/1616-43-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/1616-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1616-3-0x0000000000400000-0x000000000063B000-memory.dmp

Filesize
2.2MB

Download
memory/1616-2-0x0000000000790000-0x00000000007B7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads