modiloader | 76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc

Analysis

max time kernel
119s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 21:11

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General

Target

76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe
Size

90KB
MD5

5e8081c3a987fd633ef3287a4149d7bf
SHA1

bd703f1b9a40ec7c67061a3d6e637faa73dc7e78
SHA256

76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc
SHA512

7097744af5ab9d87772c35b85a425b3c7fcbe5dcc4f20947c9e1ccc672d1b5a3c137796a264197f5168b585fea4c23b27e4db8bb7af2b487f9a4fe4da5ab2cfe
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDG:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3A

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/4696-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4696-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4696-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4696-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe

Executes dropped EXE 3 IoCs

pid	Process
4708	csrsll.exe
1532	csrsll.exe
4696	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-1-5-21-2045521122-590294423-3465680274-1000\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 1520 set thread context of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 4708 set thread context of 1532	4708	csrsll.exe	98
PID 4708 set thread context of 4696	4708	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1520-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1520-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4272-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4272-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1520-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4272-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c96-29.dat	upx
behavioral2/memory/4272-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4708-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4708-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4696-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4272-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1532-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4696-62-0x0000000000400000-0x0000000000414000-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	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.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	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe
Token: SeDebugPrivilege	1532	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe
4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe
4708	csrsll.exe
1532	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 1520 wrote to memory of 4272	1520	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	84
PID 4272 wrote to memory of 2836	4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	85
PID 4272 wrote to memory of 2836	4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	85
PID 4272 wrote to memory of 2836	4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	85
PID 2836 wrote to memory of 1704	2836	cmd.exe	89
PID 2836 wrote to memory of 1704	2836	cmd.exe	89
PID 2836 wrote to memory of 1704	2836	cmd.exe	89
PID 4272 wrote to memory of 4708	4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	90
PID 4272 wrote to memory of 4708	4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	90
PID 4272 wrote to memory of 4708	4272	76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe	90
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 1532	4708	csrsll.exe	98
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99
PID 4708 wrote to memory of 4696	4708	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe
"C:\Users\Admin\AppData\Local\Temp\76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe
  "C:\Users\Admin\AppData\Local\Temp\76bd40e1998706c70650aebb2f35c43108ec7eaeb582b5fe01e42fb257f1ecfc.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4272
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NMGPX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2836
  - - 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:1704
- - 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:4708
  - - 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:1532
  - - 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:4696

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\NMGPX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3b326647ecbba13452b91748a1413a82

SHA1
8bb00a87eae11c4424038055462d9fdc74760ae5

SHA256
5e454eb201875cccf5607138898f2329365f69af08edbf094eae18d8a8509df2

SHA512
5ba590a18f4b7b4559dacde52647d0d1b0e1191d50de9cd2bfb3cb3b4de99cb1331b21b00bf3438da98a8348678acbf7eb8f208ac734f40f763d643c6ba81643

Download Submit
memory/1520-5-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/1520-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1520-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/1520-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1520-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1520-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1532-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4696-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4708-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4708-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads