modiloader | 187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaac

Analysis

max time kernel
119s
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
16-12-2024 07:01

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General

Target

187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
Size

90KB
MD5

fa869ae167ba8fcce07caf5c63205f40
SHA1

33c4f0d20fa5db11c85255cd08e7867122ae4637
SHA256

187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaac
SHA512

c31248ea9d75eb2005f296e1411c4aec9660d3c0078631312939adc6c4d0382d6bffc7dc6daa030f054a47a477b7fe80fb502fab5e0947c691207d347a416288
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDG:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3o

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/1220-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1220-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1220-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1220-64-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe

Executes dropped EXE 3 IoCs

pid	Process
2464	csrsll.exe
1424	csrsll.exe
1220	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-1-5-21-3756129449-3121373848-4276368241-1000\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 4736 set thread context of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 2464 set thread context of 1424	2464	csrsll.exe	95
PID 2464 set thread context of 1220	2464	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4736-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4736-6-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/228-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/228-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/228-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4736-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0032000000023b81-29.dat	upx
behavioral2/memory/2464-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/228-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2464-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2464-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1220-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1220-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1220-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1220-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2464-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1220-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/228-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1424-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1220-64-0x0000000000400000-0x0000000000414000-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	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	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe
Token: SeDebugPrivilege	1424	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
2464	csrsll.exe
1424	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 4736 wrote to memory of 228	4736	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	84
PID 228 wrote to memory of 2560	228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	87
PID 228 wrote to memory of 2560	228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	87
PID 228 wrote to memory of 2560	228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	87
PID 2560 wrote to memory of 4956	2560	cmd.exe	90
PID 2560 wrote to memory of 4956	2560	cmd.exe	90
PID 2560 wrote to memory of 4956	2560	cmd.exe	90
PID 228 wrote to memory of 2464	228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	91
PID 228 wrote to memory of 2464	228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	91
PID 228 wrote to memory of 2464	228	187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe	91
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1424	2464	csrsll.exe	95
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96
PID 2464 wrote to memory of 1220	2464	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
"C:\Users\Admin\AppData\Local\Temp\187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Users\Admin\AppData\Local\Temp\187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe
  "C:\Users\Admin\AppData\Local\Temp\187d5ee6f8ef5db1e34f4e5297b84b1ba7ba408e10bf677822f51cd8368bdaacN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:228
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DYCQG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2560
  - - 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:4956
- - 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:2464
  - - 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:1424
  - - 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:1220

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\DYCQG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b6ba22b173489bef67e56751d24b5131

SHA1
18142040e8a65803dc995f396acddc98be1c5960

SHA256
efb14b687cbf8a0c0afa1f96347e337c41f8477e01b1958833baba8411552d06

SHA512
028e1551b88da55309074ec38c5f1ca0804817a8a9d5d367eaafd55473d162d9a249e15f165549e407646d16f2e64ea4eb311ec0d03200a7015ca543414f43ad

Download Submit
memory/228-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/228-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/228-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/228-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/228-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/228-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1220-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1220-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1220-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1220-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1220-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1220-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1424-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2464-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2464-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2464-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2464-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4736-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4736-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4736-7-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4736-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4736-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4736-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4736-6-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads