modiloader | 51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d

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
10/01/2025, 20:54

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General

Target

51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
Size

90KB
MD5

bb17598e1a4e704cb59a4296b59a9689
SHA1

e805fb1545b68d65a78810d6ae14e2b97175f0c0
SHA256

51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d
SHA512

f1a1e4e973f5e62080f332b754c34f26d93b1afc339e45db349d63e539bfb259a0e35b9bd658a1dcc9e250dca87ae25f67e30f1ad1e2a8c93ce42b3aca917201
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDN:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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/4084-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4084-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4084-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4084-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe

Executes dropped EXE 3 IoCs

pid	Process
4776	csrsll.exe
1628	csrsll.exe
4084	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-1-5-21-3442511616-637977696-3186306149-1000\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 1456 set thread context of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 4776 set thread context of 1628	4776	csrsll.exe	94
PID 4776 set thread context of 4084	4776	csrsll.exe	95

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1456-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1456-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/772-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/772-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1456-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/772-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9c-30.dat	upx
behavioral2/memory/772-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4776-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4776-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4084-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4084-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4084-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4084-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4084-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4776-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/772-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1628-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4084-63-0x0000000000400000-0x0000000000414000-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	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	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.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	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe
Token: SeDebugPrivilege	1628	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
4776	csrsll.exe
1628	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 1456 wrote to memory of 772	1456	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	83
PID 772 wrote to memory of 3540	772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	84
PID 772 wrote to memory of 3540	772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	84
PID 772 wrote to memory of 3540	772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	84
PID 3540 wrote to memory of 4840	3540	cmd.exe	87
PID 3540 wrote to memory of 4840	3540	cmd.exe	87
PID 3540 wrote to memory of 4840	3540	cmd.exe	87
PID 772 wrote to memory of 4776	772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	88
PID 772 wrote to memory of 4776	772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	88
PID 772 wrote to memory of 4776	772	51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe	88
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 1628	4776	csrsll.exe	94
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95
PID 4776 wrote to memory of 4084	4776	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
"C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe
  "C:\Users\Admin\AppData\Local\Temp\51d2346f60da7a079c8ef00a7c79297a12c4735af15035fbd1b4189bad89457d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:772
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KLIRD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3540
  - - 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:4840
- - 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:4776
  - - 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:1628
  - - 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:4084

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\KLIRD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
df1c07092605d7569b41888b1e8a3d64

SHA1
2d1d4c07ee023e8b804da0fbb1b1c1b14afcf434

SHA256
75940282784515b57e1322af1bcfe3572760937e3460bca4194ba18847f30025

SHA512
9f4a67852f06c87621f7e569ec7c986d76d21bf34ee534679bfa225f1e01ac7be9c5acaceb501499368103784facab01862645d3983cae5cded513c3d76ee086

Download Submit
memory/772-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/772-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/772-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/772-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/772-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1456-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/1456-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1456-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1456-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1456-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1456-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1628-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4084-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4084-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4084-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4084-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4084-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4084-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4776-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4776-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4776-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads