modiloader | 768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2024, 07:33

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General

Target

768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe
Size

90KB
MD5

606f95be462c05c01969519c1346084e
SHA1

f3720e22676b7edb458098400ce7400e0dc4dec2
SHA256

768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777
SHA512

ca87d807d92f72c236fdde0eee7376fb8a6523441a031bde57e07dc50d4269c151120a90800a7c3528efe354445e07960b98e5112ae1b09365839bd01255ed39
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD/:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE31

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/2532-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2532-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2532-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2532-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe

Executes dropped EXE 3 IoCs

pid	Process
2208	csrsll.exe
3332	csrsll.exe
2532	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-1-5-21-3756129449-3121373848-4276368241-1000\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 4732 set thread context of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 2208 set thread context of 3332	2208	csrsll.exe	97
PID 2208 set thread context of 2532	2208	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4732-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4732-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4528-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4528-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4732-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4528-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cb9-29.dat	upx
behavioral2/memory/4528-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2208-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2208-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2532-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2532-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2532-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2532-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2532-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2208-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4528-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3332-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2532-63-0x0000000000400000-0x0000000000414000-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	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe
Token: SeDebugPrivilege	3332	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe
4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe
2208	csrsll.exe
3332	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4732 wrote to memory of 4528	4732	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	84
PID 4528 wrote to memory of 3928	4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	87
PID 4528 wrote to memory of 3928	4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	87
PID 4528 wrote to memory of 3928	4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	87
PID 3928 wrote to memory of 2772	3928	cmd.exe	90
PID 3928 wrote to memory of 2772	3928	cmd.exe	90
PID 3928 wrote to memory of 2772	3928	cmd.exe	90
PID 4528 wrote to memory of 2208	4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	91
PID 4528 wrote to memory of 2208	4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	91
PID 4528 wrote to memory of 2208	4528	768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe	91
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 3332	2208	csrsll.exe	97
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98
PID 2208 wrote to memory of 2532	2208	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe
"C:\Users\Admin\AppData\Local\Temp\768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4732
- C:\Users\Admin\AppData\Local\Temp\768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe
  "C:\Users\Admin\AppData\Local\Temp\768ad64e9ce48c7be6126bbb05ad0f1a81ca02336422f48043a6c78253f9a777.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PBKBT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3928
  - - 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:2772
- - 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:2208
  - - 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:3332
  - - 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:2532

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\PBKBT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2eade63815c5d55dcd07126c4ec10adf

SHA1
56cdcc3044fe40c2fc1c8a3bf91eff7a7d47b82d

SHA256
9d8cf1e97e48c7894b9c8060863381962b2ce488553ac219cc0e247c7b099e2a

SHA512
932132a5bd15a24b47b178e7743ffd62ffdc9768026b1df476d1e048975e20b7a50033e8e1f54c720ca7358be88f00cadc6a96ebf3109ee3df855fc4d149ecb9

Download Submit
memory/2208-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2208-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2208-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2532-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2532-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2532-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2532-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2532-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2532-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3332-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4732-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4732-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4732-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4732-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4732-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4732-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads