stealc | 3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 01:13

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General

Target

3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
Size

158KB
MD5

0cdf89055417947a9ad53cf38eb0f75e
SHA1

a6d845cd643409201b603f3918c4c45b9afb8111
SHA256

3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf
SHA512

8a2523617d4f3c68bd76c9c6f9da358d933b5e71312e25c8ce3a095c3225ba2abea0873ba0c895dea7c374346d3cda5a030557a895b990f1d7a623adb2d2aa20
SSDEEP

3072:hQH5iOMxGNftsLz4oPFKUQgC6OEYkUjUMNW82QZRaop5:hQNMxGNVwtB7OEAoWRa

Score

10^/10

stealc 3 discovery execution spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

http://93.123.39.132

Attributes

url_path
/129edec4272dc2c8.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1536	KKJJEBFCGD.exe
2396	Autoit3.exe

Loads dropped DLL 4 IoCs

pid	Process
2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
2980	cmd.exe
1536	KKJJEBFCGD.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

Command and Scripting Interpreter: AutoIT 1 TTPs 1 IoCs

Using AutoIT for possible automate script.

execution

AutoHotKey & AutoIT

T1059.010

pid	Process
2396	Autoit3.exe

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 4 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	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Autoit3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Autoit3.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
2396	Autoit3.exe

Suspicious use of AdjustPrivilegeToken 40 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1256	WMIC.exe
Token: SeSecurityPrivilege	1256	WMIC.exe
Token: SeTakeOwnershipPrivilege	1256	WMIC.exe
Token: SeLoadDriverPrivilege	1256	WMIC.exe
Token: SeSystemProfilePrivilege	1256	WMIC.exe
Token: SeSystemtimePrivilege	1256	WMIC.exe
Token: SeProfSingleProcessPrivilege	1256	WMIC.exe
Token: SeIncBasePriorityPrivilege	1256	WMIC.exe
Token: SeCreatePagefilePrivilege	1256	WMIC.exe
Token: SeBackupPrivilege	1256	WMIC.exe
Token: SeRestorePrivilege	1256	WMIC.exe
Token: SeShutdownPrivilege	1256	WMIC.exe
Token: SeDebugPrivilege	1256	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1256	WMIC.exe
Token: SeRemoteShutdownPrivilege	1256	WMIC.exe
Token: SeUndockPrivilege	1256	WMIC.exe
Token: SeManageVolumePrivilege	1256	WMIC.exe
Token: 33	1256	WMIC.exe
Token: 34	1256	WMIC.exe
Token: 35	1256	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1256	WMIC.exe
Token: SeSecurityPrivilege	1256	WMIC.exe
Token: SeTakeOwnershipPrivilege	1256	WMIC.exe
Token: SeLoadDriverPrivilege	1256	WMIC.exe
Token: SeSystemProfilePrivilege	1256	WMIC.exe
Token: SeSystemtimePrivilege	1256	WMIC.exe
Token: SeProfSingleProcessPrivilege	1256	WMIC.exe
Token: SeIncBasePriorityPrivilege	1256	WMIC.exe
Token: SeCreatePagefilePrivilege	1256	WMIC.exe
Token: SeBackupPrivilege	1256	WMIC.exe
Token: SeRestorePrivilege	1256	WMIC.exe
Token: SeShutdownPrivilege	1256	WMIC.exe
Token: SeDebugPrivilege	1256	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1256	WMIC.exe
Token: SeRemoteShutdownPrivilege	1256	WMIC.exe
Token: SeUndockPrivilege	1256	WMIC.exe
Token: SeManageVolumePrivilege	1256	WMIC.exe
Token: 33	1256	WMIC.exe
Token: 34	1256	WMIC.exe
Token: 35	1256	WMIC.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2980	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	29
PID 2112 wrote to memory of 2980	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	29
PID 2112 wrote to memory of 2980	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	29
PID 2112 wrote to memory of 2980	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	29
PID 2112 wrote to memory of 2200	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	31
PID 2112 wrote to memory of 2200	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	31
PID 2112 wrote to memory of 2200	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	31
PID 2112 wrote to memory of 2200	2112	3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe	31
PID 2980 wrote to memory of 1536	2980	cmd.exe	33
PID 2980 wrote to memory of 1536	2980	cmd.exe	33
PID 2980 wrote to memory of 1536	2980	cmd.exe	33
PID 2980 wrote to memory of 1536	2980	cmd.exe	33
PID 1536 wrote to memory of 2396	1536	KKJJEBFCGD.exe	34
PID 1536 wrote to memory of 2396	1536	KKJJEBFCGD.exe	34
PID 1536 wrote to memory of 2396	1536	KKJJEBFCGD.exe	34
PID 1536 wrote to memory of 2396	1536	KKJJEBFCGD.exe	34
PID 2396 wrote to memory of 2464	2396	Autoit3.exe	35
PID 2396 wrote to memory of 2464	2396	Autoit3.exe	35
PID 2396 wrote to memory of 2464	2396	Autoit3.exe	35
PID 2396 wrote to memory of 2464	2396	Autoit3.exe	35
PID 2464 wrote to memory of 1256	2464	cmd.exe	37
PID 2464 wrote to memory of 1256	2464	cmd.exe	37
PID 2464 wrote to memory of 1256	2464	cmd.exe	37
PID 2464 wrote to memory of 1256	2464	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe
"C:\Users\Admin\AppData\Local\Temp\3b949e360f85236eb66eafa4eeda2ffffb0fb01562767550e75dfb4bf09f0eaf.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKJJEBFCGD.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2980
- - C:\Users\Admin\AppData\Local\Temp\KKJJEBFCGD.exe
    "C:\Users\Admin\AppData\Local\Temp\KKJJEBFCGD.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1536
  - - \??\c:\temp2\Autoit3.exe
      "c:\temp2\Autoit3.exe" c:\temp2\script.a3x
      4⤵
      Executes dropped EXE
      Command and Scripting Interpreter: AutoIT
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2396
    - - \??\c:\windows\SysWOW64\cmd.exe
        
        "c:\windows\system32\cmd.exe" /c wmic ComputerSystem get domain > C:\ProgramData\effagbf\dcbbdfc
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2464
      - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic ComputerSystem get domain
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKJJJDHDGD.exe"
  2⤵
  PID:2200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

AutoHotKey & AutoIT

T1059.010

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\effagbf\dcbbdfc

Filesize
54B

MD5
c8bbad190eaaa9755c8dfb1573984d81

SHA1
17ad91294403223fde66f687450545a2bad72af5

SHA256
7f136265128b7175fb67024a6ddd7524586b025725a878c07d76a9d8ad3dc2ac

SHA512
05f02cf90969b7b9a2de39eecdf810a1835325e7c83ffe81388c9866c6f79be6cdc8617f606a8fedc6affe6127bede4b143106a90289bbb9bf61d94c648059df

Download Submit
\??\c:\temp2\script.a3x

Filesize
545KB

MD5
2a1e47445351685922c03f63d58f1544

SHA1
c57f5e6cb6dfe7e38d6f6bad6ef883aeb47ff52e

SHA256
3400e5d376d28ac776c5b432f4235d3ae71390bf8a52b92565576cedaede3adb

SHA512
9b7ae93e6f7025c30b13e53ae5b0213ff1de2506660e1e9d7cd3d54952ba3e87af784813df84fd225f8d09a14c9b965954a425fe4dfe057cb814c8e86db7da9e

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
\Users\Admin\AppData\Local\Temp\KKJJEBFCGD.exe

Filesize
4.3MB

MD5
1504c59288e3c4705c9a88bc54f78788

SHA1
ac1974123b6a5306c4f2b04aeaeeb19a2a2f4f4b

SHA256
fcaaca4d851722f6ea66abe089b8eda82e7e946dd8e36c91786e932d9e08a7fb

SHA512
45e4a784324b3d3226379bb5422f9c079881db33097220a3fc91e500414ef11ff7ac3efece4f685c08cfa7e56a57115535dfe202d0af0ec11b2ff20c2d5c1ef9

Download Submit
\temp2\Autoit3.exe

Filesize
872KB

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
memory/1536-107-0x0000000000340000-0x00000000004C7000-memory.dmp

Filesize
1.5MB

Download
memory/1536-110-0x0000000000570000-0x00000000006E2000-memory.dmp

Filesize
1.4MB

Download
memory/1536-115-0x0000000000570000-0x00000000006E2000-memory.dmp

Filesize
1.4MB

Download
memory/1536-116-0x0000000000340000-0x00000000004C7000-memory.dmp

Filesize
1.5MB

Download
memory/2112-0-0x0000000000310000-0x000000000054C000-memory.dmp

Filesize
2.2MB

Download
memory/2112-64-0x0000000000310000-0x000000000054C000-memory.dmp

Filesize
2.2MB

Download
memory/2112-1-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2200-99-0x0000000002450000-0x0000000002451000-memory.dmp

Filesize
4KB

Download