modiloader | 00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 22:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe
Size

90KB
MD5

8b90a87c0454f52ee37ebc73b7876486
SHA1

9ea9aaeda7fd0702df306205f7e90d5dee6570cc
SHA256

00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc
SHA512

8c744e27670616d1e4ee79cc528260449245b6f7d38871d7e5b17cd807d1ba064856f3dca333b25a9c25688b6889b0959850ffc0faf142fcec10ebb0d886778f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD5:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3v

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/384-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/384-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/384-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/384-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe

Executes dropped EXE 3 IoCs

pid	Process
3464	csrsll.exe
4460	csrsll.exe
384	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-1-5-21-940901362-3608833189-1915618603-1000\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 544 set thread context of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 3464 set thread context of 4460	3464	csrsll.exe	101
PID 3464 set thread context of 384	3464	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/544-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/544-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2056-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2056-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2056-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/544-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023caf-29.dat	upx
behavioral2/memory/2056-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3464-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3464-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/384-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/384-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/384-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/384-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3464-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/384-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2056-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4460-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/384-62-0x0000000000400000-0x0000000000414000-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	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.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	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe
Token: SeDebugPrivilege	4460	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe
2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe
3464	csrsll.exe
4460	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 544 wrote to memory of 2056	544	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	85
PID 2056 wrote to memory of 2400	2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	90
PID 2056 wrote to memory of 2400	2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	90
PID 2056 wrote to memory of 2400	2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	90
PID 2400 wrote to memory of 4160	2400	cmd.exe	94
PID 2400 wrote to memory of 4160	2400	cmd.exe	94
PID 2400 wrote to memory of 4160	2400	cmd.exe	94
PID 2056 wrote to memory of 3464	2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	95
PID 2056 wrote to memory of 3464	2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	95
PID 2056 wrote to memory of 3464	2056	00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe	95
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 4460	3464	csrsll.exe	101
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102
PID 3464 wrote to memory of 384	3464	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe
"C:\Users\Admin\AppData\Local\Temp\00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:544
- C:\Users\Admin\AppData\Local\Temp\00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe
  "C:\Users\Admin\AppData\Local\Temp\00281ca34bc7e67168c34e429e4d893d366159c54f29c5faa306ddc3729035bc.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YKSKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2400
  - - 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:4160
- - 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:3464
  - - 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:4460
  - - 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:384

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\YKSKT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9cdc50d70daae023ee5ffbb7222fcc23

SHA1
ee04367f966d0b8cf5ab95f553692e075e2ea1d6

SHA256
7fc627c5ebe869ba677403c7451261d63a5c035ac187c52f5e224098734983f5

SHA512
f769ba1db2a942a3549d8fffa5cbe9d7729544a02d831fac4fd78bf9409690963d3fb3a02de9d42c64bfe057b421316db9eed970690ab83d1e83f6f1e63d80c7

Download Submit
memory/384-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/384-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/384-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/384-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/384-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/384-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/544-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/544-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/544-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/544-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/544-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/544-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/2056-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2056-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2056-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2056-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2056-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3464-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3464-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3464-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4460-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads