modiloader | 25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7

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
19-12-2024 20:56

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General

Target

25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe
Size

90KB
MD5

aafea0af4afbe5e8b4daad220c54c890
SHA1

1a198c9e5678c47c7f39f6837c09a9bd1c67a7d5
SHA256

25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7
SHA512

fdabde3a06450896fe7ed467c68aee3c95acd8c76a6c7248cabb1de54f032fa649f511c1991b4e448f2cec945348dda8841fa65751b55853e93ea3cad45de73b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDy:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3I

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/1236-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1236-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1236-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1236-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe

Executes dropped EXE 3 IoCs

pid	Process
1876	csrsll.exe
1320	csrsll.exe
1236	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-1-5-21-3227495264-2217614367-4027411560-1000\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 5076 set thread context of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 1876 set thread context of 1320	1876	csrsll.exe	93
PID 1876 set thread context of 1236	1876	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5076-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5076-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2472-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2472-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2472-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5076-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b8e-29.dat	upx
behavioral2/memory/2472-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1876-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1876-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1236-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1236-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1876-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1236-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1236-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1236-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2472-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1320-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1236-63-0x0000000000400000-0x0000000000414000-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	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe
Token: SeDebugPrivilege	1320	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe
2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe
1876	csrsll.exe
1320	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 5076 wrote to memory of 2472	5076	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	82
PID 2472 wrote to memory of 2944	2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	83
PID 2472 wrote to memory of 2944	2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	83
PID 2472 wrote to memory of 2944	2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	83
PID 2944 wrote to memory of 2696	2944	cmd.exe	86
PID 2944 wrote to memory of 2696	2944	cmd.exe	86
PID 2944 wrote to memory of 2696	2944	cmd.exe	86
PID 2472 wrote to memory of 1876	2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	87
PID 2472 wrote to memory of 1876	2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	87
PID 2472 wrote to memory of 1876	2472	25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe	87
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1320	1876	csrsll.exe	93
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94
PID 1876 wrote to memory of 1236	1876	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe
"C:\Users\Admin\AppData\Local\Temp\25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Users\Admin\AppData\Local\Temp\25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe
  "C:\Users\Admin\AppData\Local\Temp\25aa73e1e15850ae5c2414754fed656149de7cb936104fd449735ffdf615e6e7N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JFDTR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2944
  - - 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:2696
- - 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:1876
  - - 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:1320
  - - 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:1236

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
394a94b97455c0f69b42f5da19196841

SHA1
89657b9b738241062f8d3cf1f674b7d908b3e3ae

SHA256
d62c20a17535a40024d59c2a4b8d9f2d0b74da3e7cca5ad5d1fc098721b5332b

SHA512
3683f1963d3931d3175ed3e6951e67a3f199df2fcb61fe6e3d3647f9b81d159c7ffa768760bcee4141633530a3c05d40cdea2cf6a9fd21d9737fa0f78063d5cb

Download Submit
memory/1236-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1236-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1236-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1236-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1236-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1236-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1320-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1876-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1876-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2472-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2472-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2472-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2472-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2472-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2472-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5076-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/5076-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/5076-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads