modiloader | 57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 22:41

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General

Target

57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
Size

90KB
MD5

8f6c9bc96b6438c19061a66240f80449
SHA1

e8f5f3d545b4d3ea89509f7cfe1c919a48866f2c
SHA256

57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288
SHA512

fc87811f4760da975ab18e89b4f1082f2c5f776530485deb404d5b822e9e336053c6c2c178b5b0294fa004e289da856438a39cd460eb143c48dcec5b16562082
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD8:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3e

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/1052-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1052-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1052-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1052-63-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe

Executes dropped EXE 3 IoCs

pid	Process
1568	csrsll.exe
3768	csrsll.exe
1052	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 4336 set thread context of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 1568 set thread context of 3768	1568	csrsll.exe	99
PID 1568 set thread context of 1052	1568	csrsll.exe	100

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4336-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4336-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2192-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2192-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4336-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2192-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2192-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023ca1-29.dat	upx
behavioral2/memory/1568-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2192-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1568-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1568-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1052-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1052-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1052-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1052-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1052-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1568-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2192-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3768-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1052-63-0x0000000000400000-0x0000000000414000-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	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	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe
Token: SeDebugPrivilege	3768	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
1568	csrsll.exe
3768	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 4336 wrote to memory of 2192	4336	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	83
PID 2192 wrote to memory of 4716	2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	87
PID 2192 wrote to memory of 4716	2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	87
PID 2192 wrote to memory of 4716	2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	87
PID 4716 wrote to memory of 5096	4716	cmd.exe	92
PID 4716 wrote to memory of 5096	4716	cmd.exe	92
PID 4716 wrote to memory of 5096	4716	cmd.exe	92
PID 2192 wrote to memory of 1568	2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	93
PID 2192 wrote to memory of 1568	2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	93
PID 2192 wrote to memory of 1568	2192	57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe	93
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 3768	1568	csrsll.exe	99
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100
PID 1568 wrote to memory of 1052	1568	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
"C:\Users\Admin\AppData\Local\Temp\57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Users\Admin\AppData\Local\Temp\57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe
  "C:\Users\Admin\AppData\Local\Temp\57107a017b6fd947719848d5da21d7efbdc293eeb7bbbf50dfcbfe205a6b7288.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KCULI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4716
  - - 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:5096
- - 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:1568
  - - 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:3768
  - - 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:1052

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\KCULI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
13e091d2b7dce5abf87f37eea98892ba

SHA1
702ef0d4ae412c55c3f4708774080c5e43d41c73

SHA256
8a7f574ad3e1ac9c5c0f26054a38d8c40fda05931bb8db3a2357b30f5e314925

SHA512
e96616e6cc11f99c87a89138c3219bc2ae26c6df172cb79c62588143ef72de2d7c2481a7ee2cc93ac90e938df2a918548fa664a17900a56e9795586ee5d0ca57

Download Submit
memory/1052-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1052-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1052-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1052-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1052-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1052-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1568-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1568-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1568-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1568-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2192-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2192-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2192-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2192-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2192-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2192-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2192-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3768-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4336-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4336-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4336-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4336-7-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4336-6-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4336-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4336-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads