stealc | 36e68b389b140045231609c75bc7e7461b7c179cd7ac91e2c52b1fa7b293cec6

General

Target

6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe
Size

366KB
MD5

2cd2fe9cdc8d0007e549863d15c70385
SHA1

c9a07c6904d4bdd5b41a02dfcf9465a69df9fbb7
SHA256

6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0
SHA512

6507518b7ad51f8b4ea4495f5d753aa0a0084dabfa0ae07daef11d410e99a137ae10a278b3e188244e40ceeccea9bb60046593a40070f2f9a442992c90775d80
SSDEEP

6144:oF2FIvTpXb975SmaZyydUd2o95J9K8G/mV7QthCa+E:oFMElX575SmdooTJWmqjCa+

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://aidandylan.top

Attributes

url_path
/3886d2276f6914c4.php

rc4.plain

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	3444453685.exe

Executes dropped EXE 1 IoCs

pid	Process
1740	3444453685.exe

Loads dropped DLL 2 IoCs

pid	Process
1740	3444453685.exe
1740	3444453685.exe

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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4552	4116	WerFault.exe	84
3232	1740	WerFault.exe	88

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	3444453685.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3444453685.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4256	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3068	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1740	3444453685.exe
1740	3444453685.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	taskkill.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 4856	4116	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe	86
PID 4116 wrote to memory of 4856	4116	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe	86
PID 4116 wrote to memory of 4856	4116	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe	86
PID 4856 wrote to memory of 1740	4856	cmd.exe	88
PID 4856 wrote to memory of 1740	4856	cmd.exe	88
PID 4856 wrote to memory of 1740	4856	cmd.exe	88
PID 4116 wrote to memory of 3552	4116	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe	93
PID 4116 wrote to memory of 3552	4116	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe	93
PID 4116 wrote to memory of 3552	4116	6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe	93
PID 3552 wrote to memory of 3068	3552	cmd.exe	96
PID 3552 wrote to memory of 3068	3552	cmd.exe	96
PID 3552 wrote to memory of 3068	3552	cmd.exe	96
PID 1740 wrote to memory of 4588	1740	3444453685.exe	103
PID 1740 wrote to memory of 4588	1740	3444453685.exe	103
PID 1740 wrote to memory of 4588	1740	3444453685.exe	103
PID 4588 wrote to memory of 4256	4588	cmd.exe	107
PID 4588 wrote to memory of 4256	4588	cmd.exe	107
PID 4588 wrote to memory of 4256	4588	cmd.exe	107

C:\Users\Admin\AppData\Local\Temp\6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe
"C:\Users\Admin\AppData\Local\Temp\6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\3444453685.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Users\Admin\AppData\Local\Temp\3444453685.exe
    "C:\Users\Admin\AppData\Local\Temp\3444453685.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1740
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3444453685.exe" & del "C:\ProgramData\*.dll"" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4588
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:4256
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 2576
      4⤵
      Program crash
      PID:3232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3552
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 1920
  2⤵
  - Program crash
  PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4116 -ip 4116
1⤵
PID:1672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1740 -ip 1740
1⤵
PID:2940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

2

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
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Local\Temp\3444453685.exe

Filesize
202KB

MD5
042fe40a9dc436330754e183ac2b0b55

SHA1
397fd6687e026d09535ba00c7fabe6406eca7093

SHA256
60105053a8c43d3f3f63291c04e5485f938564f995cde262eb2014cf5d319208

SHA512
e7087eb45609180a18a21f9911feadbc196b1844d3a6d737e20e156cfb6e34daf06cdd6472ad610dc7ce3efdb6ec99a2098f08b23a68582e44759e44a572de19

Download Submit
C:\Users\Admin\AppData\Local\Temp\3444453685.exe

Filesize
202KB

MD5
042fe40a9dc436330754e183ac2b0b55

SHA1
397fd6687e026d09535ba00c7fabe6406eca7093

SHA256
60105053a8c43d3f3f63291c04e5485f938564f995cde262eb2014cf5d319208

SHA512
e7087eb45609180a18a21f9911feadbc196b1844d3a6d737e20e156cfb6e34daf06cdd6472ad610dc7ce3efdb6ec99a2098f08b23a68582e44759e44a572de19

Download Submit
memory/1740-58-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1740-17-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download
memory/1740-18-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1740-19-0x0000000002240000-0x000000000225B000-memory.dmp

Filesize
108KB

Download
memory/1740-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1740-88-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download
memory/1740-92-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/1740-98-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/4116-15-0x0000000000400000-0x00000000022A1000-memory.dmp

Filesize
30.6MB

Download
memory/4116-1-0x0000000002510000-0x0000000002610000-memory.dmp

Filesize
1024KB

Download
memory/4116-16-0x0000000002450000-0x000000000248E000-memory.dmp

Filesize
248KB

Download
memory/4116-3-0x0000000000400000-0x00000000022A1000-memory.dmp

Filesize
30.6MB

Download
memory/4116-2-0x0000000002450000-0x000000000248E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads