modiloader | 073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2025 19:27

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General

Target

073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
Size

300KB
MD5

5c0594292bbbf01ddbf837cc285eb933
SHA1

bef03fb923f74898818d38df50b4b8b410552601
SHA256

073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3
SHA512

bdecd6e5b06b8ca12f79d3c8f335694b91f051e253dc77fc2b96f41bb7e174a30dbe1e1e2c87047073bffdb1f8ede1e31786ca834dd04fa9a2bd7938f6acec74
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Ge:UsxD5cwohO+O1sVG0/pZ6iPC8s

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/1572-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1572-59-0x0000000000400000-0x0000000000414000-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	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe

Executes dropped EXE 3 IoCs

pid	Process
2988	csrsll.exe
4504	csrsll.exe
1572	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 2376 set thread context of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2988 set thread context of 4504	2988	csrsll.exe	93
PID 2988 set thread context of 1572	2988	csrsll.exe	94

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3476-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3476-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3476-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3476-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1572-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3476-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1572-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1572-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4504-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1572-59-0x0000000000400000-0x0000000000414000-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	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	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe
Token: SeDebugPrivilege	4504	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
2988	csrsll.exe
4504	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 2376 wrote to memory of 3476	2376	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	82
PID 3476 wrote to memory of 3524	3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	83
PID 3476 wrote to memory of 3524	3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	83
PID 3476 wrote to memory of 3524	3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	83
PID 3524 wrote to memory of 1900	3524	cmd.exe	86
PID 3524 wrote to memory of 1900	3524	cmd.exe	86
PID 3524 wrote to memory of 1900	3524	cmd.exe	86
PID 3476 wrote to memory of 2988	3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	87
PID 3476 wrote to memory of 2988	3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	87
PID 3476 wrote to memory of 2988	3476	073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe	87
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 4504	2988	csrsll.exe	93
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94
PID 2988 wrote to memory of 1572	2988	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
"C:\Users\Admin\AppData\Local\Temp\073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe
  "C:\Users\Admin\AppData\Local\Temp\073bf842abb707ce3eed538f111626873a61c18d98f167b0fad6b5fc59a4c2d3.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3476
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HIAHI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3524
  - - 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:1900
- - 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:2988
  - - 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:4504
  - - 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:1572

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\HIAHI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
0aab588045cdbb523b05bfd915dd5398

SHA1
e977c52a9165ffb754c8336c7aa65e23bca293d3

SHA256
22cdbc53fa257a4765861f9e38be40f7d842c06e6ab5365d2509ccbbbf10be15

SHA512
854646628f3bc588596613fe7db9c5c5c0824f865b7ec931b6c9cb3ede06a970381e5bdcb10fb9bb9948c910508d71a4d09ff14307d677e3d2ae388438b579ee

Download Submit
memory/1572-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1572-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2376-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/2376-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2376-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2376-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2376-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2988-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2988-40-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2988-48-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3476-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3476-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3476-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3476-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3476-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4504-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads