modiloader | 6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 01:19

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General

Target

6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe
Size

90KB
MD5

3e00e3be42593bb154166dde446f3e55
SHA1

fbe057a7f30fde2541c2c1e825ae2b14d6c650eb
SHA256

6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee
SHA512

d231fb9923dc7e29b5647798c18a5103ab76d72fac95564595bbb9a79dba099d55efb4e7b400ea39549f27546801eef0ad95acd21d5a0813c93d9a07ab2995d2
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDs:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3m

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/1916-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1916-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1916-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1916-61-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe

Executes dropped EXE 3 IoCs

pid	Process
2432	csrsll.exe
5020	csrsll.exe
1916	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-1-5-21-493223053-2004649691-1575712786-1000\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 3576 set thread context of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 2432 set thread context of 5020	2432	csrsll.exe	101
PID 2432 set thread context of 1916	2432	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3576-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3576-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4644-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4644-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4644-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3576-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4644-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d000000023a9f-28.dat	upx
behavioral2/memory/4644-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2432-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2432-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1916-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1916-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1916-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1916-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1916-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2432-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4644-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5020-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1916-61-0x0000000000400000-0x0000000000414000-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	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.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
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	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe
Token: SeDebugPrivilege	5020	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe
4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe
2432	csrsll.exe
5020	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 3576 wrote to memory of 4644	3576	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	89
PID 4644 wrote to memory of 4832	4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	90
PID 4644 wrote to memory of 4832	4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	90
PID 4644 wrote to memory of 4832	4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	90
PID 4832 wrote to memory of 3184	4832	cmd.exe	94
PID 4832 wrote to memory of 3184	4832	cmd.exe	94
PID 4832 wrote to memory of 3184	4832	cmd.exe	94
PID 4644 wrote to memory of 2432	4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	96
PID 4644 wrote to memory of 2432	4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	96
PID 4644 wrote to memory of 2432	4644	6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe	96
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 5020	2432	csrsll.exe	101
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102
PID 2432 wrote to memory of 1916	2432	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe
"C:\Users\Admin\AppData\Local\Temp\6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3576
- C:\Users\Admin\AppData\Local\Temp\6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe
  "C:\Users\Admin\AppData\Local\Temp\6b00b3a7487c8097d90834fb03bb0d2a5ffae0fcac02bb0f0db63a289849a2ee.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4644
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WTHTE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4832
  - - 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:3184
- - 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:2432
  - - 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:5020
  - - 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:1916

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\WTHTE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
42dbc35e103dd500ec0f15b987e6962a

SHA1
7405926e60252c3cf64d9d1a76f37eb4f92c1c9b

SHA256
e66839075c2fc3d116360acd766a45c1ffea0c222da53f176ced889fa398b7ad

SHA512
7f608059fbdda4adfc434e389781a3c4b0803abcb21e80c3cba25e93a077c64cacc3c40a5d44aeab52b88e188508c4ed396a6c21802012676a4d46be538b23ee

Download Submit
memory/1916-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1916-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1916-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1916-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1916-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1916-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2432-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2432-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2432-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3576-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3576-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3576-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3576-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3576-5-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3576-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/4644-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4644-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4644-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4644-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4644-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4644-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4644-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5020-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads