modiloader | 66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2

Analysis

max time kernel
119s
max time network
124s
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 21:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe
Size

90KB
MD5

0025b1dfb75226810a4cc31936d06a20
SHA1

2a5a64f9c6954dbc82f187c9e2d8cbceb87bf83c
SHA256

66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2
SHA512

abf0b9ccff6eb722097289b2478ad1476bf0e76c552d2e85293170ace10f4ed2f9f77ee1c64cf23f03d695ca4cc29d5292a19ffd47cb5ec8f1e8e2468e0ab4ff
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDQ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3S

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/4344-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4344-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4344-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4344-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe

Executes dropped EXE 3 IoCs

pid	Process
3216	csrsll.exe
1444	csrsll.exe
4344	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-1-5-21-2437139445-1151884604-3026847218-1000\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 3720 set thread context of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3216 set thread context of 1444	3216	csrsll.exe	101
PID 3216 set thread context of 4344	3216	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3720-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3720-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4188-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4188-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3720-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4188-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b7f-29.dat	upx
behavioral2/memory/4188-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3216-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3216-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4344-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3216-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4344-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4188-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1444-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4344-62-0x0000000000400000-0x0000000000414000-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	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.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	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe
4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe
3216	csrsll.exe
1444	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 3720 wrote to memory of 4188	3720	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	85
PID 4188 wrote to memory of 2032	4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	90
PID 4188 wrote to memory of 2032	4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	90
PID 4188 wrote to memory of 2032	4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	90
PID 2032 wrote to memory of 384	2032	cmd.exe	94
PID 2032 wrote to memory of 384	2032	cmd.exe	94
PID 2032 wrote to memory of 384	2032	cmd.exe	94
PID 4188 wrote to memory of 3216	4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	95
PID 4188 wrote to memory of 3216	4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	95
PID 4188 wrote to memory of 3216	4188	66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe	95
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 1444	3216	csrsll.exe	101
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102
PID 3216 wrote to memory of 4344	3216	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe
"C:\Users\Admin\AppData\Local\Temp\66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Users\Admin\AppData\Local\Temp\66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe
  "C:\Users\Admin\AppData\Local\Temp\66da76123044dec1e202af86850ee69061f3e75238c2dc723c9f0740e53987a2N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4188
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IWVHP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2032
  - - 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:384
- - 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:3216
  - - 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:1444
  - - 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:4344

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

Loading Replay Monitor...

Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4252ed6c060ce456fdf73cef6151c8d7

SHA1
042f9e8d13e92b8f21791e8b86296adb03308bc4

SHA256
d6dc2ed5a5716165556cb113dab3aed534cbf8a1c45b3ed69d627dcb17ef211c

SHA512
8e243ebd41cd862a6ab16a9050fcd54087947196a48cdc0a5b6ffce7e2ba8d3a187b12573c71cad63c89182bae33bb9ba10d0706f9927074c914f04ff80ef75b

Download Submit
memory/1444-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3216-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3216-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3216-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3720-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/3720-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3720-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3720-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3720-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3720-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4188-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4188-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4188-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4344-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads