modiloader | 7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6

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
22-12-2024 04:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe
Size

90KB
MD5

8e4a0041e5a7f00e8c618b4b778a7714
SHA1

b4c62b44127d06e69d8a1431dfb0bed55f556eb0
SHA256

7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6
SHA512

a660930585b41e613ce5966c70c83642383d1ab61c72c687e459e9ebaf8b61bcb60237e87ed53262e33c88e1df8c5c4af68ee3e7b5496166e048f144d7bb3e70
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDq:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3g

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/3952-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3952-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3952-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3952-61-0x0000000000400000-0x0000000000414000-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	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe

Executes dropped EXE 3 IoCs

pid	Process
2400	csrsll.exe
3800	csrsll.exe
3952	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 1728 set thread context of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 2400 set thread context of 3800	2400	csrsll.exe	94
PID 2400 set thread context of 3952	2400	csrsll.exe	95

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1728-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1728-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4352-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4352-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1728-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4352-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b38-28.dat	upx
behavioral2/memory/4352-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2400-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2400-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3952-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3952-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3952-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3952-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3952-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2400-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4352-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3800-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3952-61-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe
Token: SeDebugPrivilege	3800	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe
4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe
2400	csrsll.exe
3800	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 1728 wrote to memory of 4352	1728	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	85
PID 4352 wrote to memory of 3824	4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	87
PID 4352 wrote to memory of 3824	4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	87
PID 4352 wrote to memory of 3824	4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	87
PID 3824 wrote to memory of 3236	3824	cmd.exe	90
PID 3824 wrote to memory of 3236	3824	cmd.exe	90
PID 3824 wrote to memory of 3236	3824	cmd.exe	90
PID 4352 wrote to memory of 2400	4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	91
PID 4352 wrote to memory of 2400	4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	91
PID 4352 wrote to memory of 2400	4352	7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe	91
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3800	2400	csrsll.exe	94
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95
PID 2400 wrote to memory of 3952	2400	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe
"C:\Users\Admin\AppData\Local\Temp\7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe
  "C:\Users\Admin\AppData\Local\Temp\7d975134fdb4f665df70dfd7da7cd422d39174f2891d81e13e39ebb3df30ace6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4352
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CFRSN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3824
  - - 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:3236
- - 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:2400
  - - 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:3800
  - - 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:3952

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\CFRSN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
69ea62307bbb5ab8958a8e12e5507e44

SHA1
fd5977761963e4c39a0c01a6be0c7f8217aac970

SHA256
6dcac919c3605e947775481d1830b3a63887ca750ae817e342bd09bed3555f7a

SHA512
12608ffd8551546d43c5e948fde02c3fbc75bc89d217c01385e5def87566208ca46d2a65b3fb883af1cf62b3220ad6fe9ae7b9a669eb14f140f9b874e00eb8d9

Download Submit
memory/1728-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1728-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1728-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1728-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3800-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3952-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3952-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3952-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3952-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3952-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3952-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4352-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4352-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4352-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4352-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4352-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads