hijackloader | c0d694f24002c77382adfeaa0f3b9c28d93e2c07d761ccaa5fc9644389031c39

Resubmissions

26-07-2024 23:18

240726-3ac1dsthre 10

11-06-2024 01:50

240611-b9q8hszbqh 10

09-06-2024 15:53

240609-tbyttach24 10

Analysis

max time kernel
150s
max time network
159s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
26-07-2024 23:18

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General

Target

Dexis Setup.exe
Size

64.6MB
MD5

168e953440d699dc30a39402b4f6e625
SHA1

66efd121a3fdd79b3443f1204fc3a8a8e8d76d12
SHA256

c0d694f24002c77382adfeaa0f3b9c28d93e2c07d761ccaa5fc9644389031c39
SHA512

0dd0edd1b6cb1e1a5c0c39975dc11a2b85c2cdc3b1f0e476b1d867d2519f37e07fb3aec6e0ab4ea2b6370281434541aa010cfa21a07543ca00edfb47dbbbc7d2
SSDEEP

1572864:sQsJjyxAAJXIUEqFGX6xJU2ii8FStoKNSKqh4DFC2EPc4iUb/++O2g9mju:sQ+jyZLEqFC602h86Dc2EE4Fe9mS

Score

10^/10

hijackloader stealc dex23 discovery execution loader stealer

Malware Config

Extracted

Family

stealc

Botnet

dex23

http://45.156.27.196

Attributes

url_path
/4c7ef30d4540070f.php

Signatures

Detects HijackLoader (aka IDAT Loader) 2 IoCs

resource	yara_rule
behavioral4/files/0x000500000002aad6-216.dat	family_hijackloader
behavioral4/memory/1316-217-0x00000000008B0000-0x00000000009AB000-memory.dmp	family_hijackloader

HijackLoader
HijackLoader is a multistage loader first seen in 2023.
loader hijackloader
Stealc
Stealc is an infostealer written in C++.
stealer stealc

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3000	powershell.exe
1140	powershell.exe
1920	powershell.exe
2264	powershell.exe

Downloads MZ/PE file

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1316 set thread context of 4732	1316	snss1.exe	94

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Dexis\locales\nb.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\ms.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\es.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\nb.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\sl.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\tr.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\vi.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\Dexis.exe	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\resources\app.asar.unpacked\node_modules	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\chrome_100_percent.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\gu.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\ja.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\resources\app.asar.unpacked\node_modules\node-mac-window\build\Release\mac_window.node	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\pt-PT.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\ru.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\snapshot_blob.bin	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\Dexis.exe	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\de.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\am.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\hr.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\lt.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\ur.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\v8_context_snapshot.bin	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\chrome_100_percent.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\cs.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\fi.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\sw.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\zh-CN.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\libEGL.dll	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\vk_swiftshader.dll	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\bn.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\ro.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\sk.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\sv.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\d3dcompiler_47.dll	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\lt.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\ca.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\he.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\th.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\version	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\libGLESv2.dll	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\resources\elevate.exe	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\icudtl.dat	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\fa.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\ko.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\lv.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\vk_swiftshader_icd.json	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\chrome_200_percent.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\el.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\en-GB.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\fil.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\sr.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\resources.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\d3dcompiler_47.dll	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\vulkan-1.dll	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\de.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\pt-PT.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\resources\trayIcon.ico	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\vk_swiftshader.dll	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\es.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\he.pak	Dexis Setup.exe
File created	C:\Program Files (x86)\Dexis\locales\ko.pak	Dexis Setup.exe
File opened for modification	C:\Program Files (x86)\Dexis\locales\zh-TW.pak	Dexis Setup.exe

Executes dropped EXE 2 IoCs

pid	Process
3116	Dexis.exe
1316	snss1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dexis Setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	snss1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2264	powershell.exe
2264	powershell.exe
3000	powershell.exe
3000	powershell.exe
1140	powershell.exe
1140	powershell.exe
1920	powershell.exe
1920	powershell.exe
1316	snss1.exe
1316	snss1.exe
4732	cmd.exe
4732	cmd.exe
4904	explorer.exe
4904	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1316	snss1.exe
4732	cmd.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	1140	powershell.exe
Token: SeDebugPrivilege	1920	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3264 wrote to memory of 3116	3264	Dexis Setup.exe	83
PID 3264 wrote to memory of 3116	3264	Dexis Setup.exe	83
PID 3116 wrote to memory of 2264	3116	Dexis.exe	84
PID 3116 wrote to memory of 2264	3116	Dexis.exe	84
PID 3116 wrote to memory of 3000	3116	Dexis.exe	86
PID 3116 wrote to memory of 3000	3116	Dexis.exe	86
PID 3116 wrote to memory of 1140	3116	Dexis.exe	88
PID 3116 wrote to memory of 1140	3116	Dexis.exe	88
PID 3116 wrote to memory of 1920	3116	Dexis.exe	90
PID 3116 wrote to memory of 1920	3116	Dexis.exe	90
PID 3116 wrote to memory of 1316	3116	Dexis.exe	92
PID 3116 wrote to memory of 1316	3116	Dexis.exe	92
PID 3116 wrote to memory of 1316	3116	Dexis.exe	92
PID 1316 wrote to memory of 4732	1316	snss1.exe	94
PID 1316 wrote to memory of 4732	1316	snss1.exe	94
PID 1316 wrote to memory of 4732	1316	snss1.exe	94
PID 1316 wrote to memory of 4732	1316	snss1.exe	94
PID 4732 wrote to memory of 4904	4732	cmd.exe	96
PID 4732 wrote to memory of 4904	4732	cmd.exe	96
PID 4732 wrote to memory of 4904	4732	cmd.exe	96
PID 4732 wrote to memory of 4904	4732	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\Dexis Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Dexis Setup.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3264
- C:\Program Files (x86)\Dexis\Dexis.exe
  "C:\Program Files (x86)\Dexis\Dexis.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3116
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2264
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3000
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1140
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1920
- - C:\Users\Admin\AppData\Local\Temp\b4ccec2f-7ea3-4e6e-a477-b2c6f0b3dc3c\snss1.exe
    "C:\Users\Admin\AppData\Local\Temp\b4ccec2f-7ea3-4e6e-a477-b2c6f0b3dc3c\snss1.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1316
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\SysWOW64\cmd.exe
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:4732
    - - C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        5⤵
        System Location Discovery: System Language Discovery
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        
        PID:4904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
050578bcbe71fcf8467e66dd700f1a0b

SHA1
edc182f324a85f530077aff358c2b5269b088fc1

SHA256
ac02bf4fb18fffdf076eb0ef1169af67cbcb1306a009f4821f3b8546764b4a50

SHA512
f0ba63e42038eaf1017367674ad0dde48e7f39e1473680247027b07cf7aa03562cc52b9f91b1f63eaa684235f42d78761e522cacaad2a4fac9f1e8f96685d381

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
4914eb0b2ff51bfa48484b5cc8454218

SHA1
6a7c3e36ce53b42497884d4c4a3bda438dd4374b

SHA256
7e510fc9344ef239ab1ab650dc95bb25fd44e2efba8b8246a3ac17880ee8b69e

SHA512
83ab35f622f4a5040ca5cb615a30f83bb0741449225f1fd1815b6923e225c28241d0c02d34f83f743349a5e57f84ca1c6f44016797a93d5985be41d11be79500

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1verx3wi.dbt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\b4ccec2f-7ea3-4e6e-a477-b2c6f0b3dc3c\snss1.exe

Filesize
1001KB

MD5
4ccd18f6c7aa9498fd47d7da126209a2

SHA1
2e79a313f0b5613ce98e6ca9f490e553b0536513

SHA256
5dbe678474b396f5edc307d96d3f83fba693d33c41f361e850bb91e98529f9b2

SHA512
45b7e8acdb077f1c2861417d446624cf22b80488bfc86c92a629b37a35b9ed7793a6a99869befeb395ce913304558029a373f6adcc04758a080210b368c46206

Download Submit
C:\Users\Admin\AppData\Local\Temp\facbb305

Filesize
899KB

MD5
3b1175bdab3866b043f304313df2488b

SHA1
1a943f42b73c44ae807e30385335aff0ee4b5989

SHA256
e5c2d357450b543cc5a578ad440a38053affef64e69b076e29a5b67c10613fb8

SHA512
3f6b08e4fd9d5767369eb1bf9e67776d27d61498448bfc67b08a83500cf6ccd50589c982736ac142ec5c799432a9f59be6ee9e9e98827c3f8806d8e80748f4b6

Download Submit
memory/1316-219-0x0000000073A50000-0x0000000073BCD000-memory.dmp

Filesize
1.5MB

Download
memory/1316-220-0x00007FF9F9980000-0x00007FF9F9B89000-memory.dmp

Filesize
2.0MB

Download
memory/1316-221-0x0000000073A50000-0x0000000073BCD000-memory.dmp

Filesize
1.5MB

Download
memory/1316-217-0x00000000008B0000-0x00000000009AB000-memory.dmp

Filesize
1004KB

Download
memory/2264-176-0x0000028E655E0000-0x0000028E65602000-memory.dmp

Filesize
136KB

Download
memory/4732-224-0x00007FF9F9980000-0x00007FF9F9B89000-memory.dmp

Filesize
2.0MB

Download
memory/4732-225-0x0000000073A50000-0x0000000073BCD000-memory.dmp

Filesize
1.5MB

Download
memory/4904-227-0x00000000012C0000-0x0000000001504000-memory.dmp

Filesize
2.3MB

Download
memory/4904-228-0x00007FF9F9980000-0x00007FF9F9B89000-memory.dmp

Filesize
2.0MB

Download
memory/4904-229-0x00000000012C0000-0x0000000001504000-memory.dmp

Filesize
2.3MB

Download
memory/4904-232-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4904-255-0x00000000012C0000-0x0000000001504000-memory.dmp

Filesize
2.3MB

Download