modiloader | 919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 13:45

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General

Target

919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
Size

90KB
MD5

5931d20f99c8f962078c737ef0a5a6e0
SHA1

d5ce3506b90f9302c0ac47cac74e1a906c747cf0
SHA256

919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57
SHA512

c982ec2e978b6b28edd9447151e4c81a4e3ff80758e5913614d0fb044f3ad400c69d2f3c709700052422ddde0fae2dce1b51b53cba89522aaeef5cf18856d3b3
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4168-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4168-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4168-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4168-64-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe

Executes dropped EXE 3 IoCs

pid	Process
2044	csrsll.exe
1740	csrsll.exe
4168	csrsll.exe

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2044 set thread context of 1740	2044	csrsll.exe	95
PID 2044 set thread context of 4168	2044	csrsll.exe	96

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2892-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2892-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1276-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2892-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1276-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1276-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c03-30.dat	upx
behavioral2/memory/2044-38-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1276-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2044-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2044-44-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4168-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4168-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4168-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4168-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2044-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4168-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1276-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1740-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4168-64-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 7 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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe
Token: SeDebugPrivilege	1740	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
2044	csrsll.exe
1740	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 2892 wrote to memory of 1276	2892	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	86
PID 1276 wrote to memory of 1076	1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	87
PID 1276 wrote to memory of 1076	1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	87
PID 1276 wrote to memory of 1076	1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	87
PID 1076 wrote to memory of 3500	1076	cmd.exe	91
PID 1076 wrote to memory of 3500	1076	cmd.exe	91
PID 1076 wrote to memory of 3500	1076	cmd.exe	91
PID 1276 wrote to memory of 2044	1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	92
PID 1276 wrote to memory of 2044	1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	92
PID 1276 wrote to memory of 2044	1276	919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe	92
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 1740	2044	csrsll.exe	95
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96
PID 2044 wrote to memory of 4168	2044	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
"C:\Users\Admin\AppData\Local\Temp\919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Local\Temp\919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe
  "C:\Users\Admin\AppData\Local\Temp\919aaf802036e5dfb2faacf23fba05d2742ef33cd01b90f475909fce597cae57N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1276
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GXOCN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1076
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:3500
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1740
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:4168

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

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\GXOCN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
d11bd53e68d1ccd65708f137a42ca215

SHA1
d59d77411ce352c8cd4fc0a44acde250d38ea8fd

SHA256
de10bfeece39e57b9496fab2e749d3f66bdcd80174ba1dab0a40748bc8389248

SHA512
4a4581f7a5beb01e53f98f1612b9ef9e2a5bed5484a82566f0d1554a20c72c4437c8632e4a438b1df4c3672cd7b3982679a93f53b55215c4eb09179944a4bc1a

Download Submit
memory/1276-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1276-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1276-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1276-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1276-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1740-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-38-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2044-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2044-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2044-44-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-4-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2892-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2892-3-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/2892-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2892-7-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4168-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4168-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4168-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4168-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4168-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4168-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads