modiloader | 6a478807dd21b0970c9813aae1afeb40caaecacac2d6c67763b32fea1fe7e4fd

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 15:19

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General

Target

eed2c30860e9d578829f67be8479c0b0N.exe
Size

90KB
MD5

eed2c30860e9d578829f67be8479c0b0
SHA1

0d1f530c15c243c4aad4a8166ab0c52adbb08a19
SHA256

6a478807dd21b0970c9813aae1afeb40caaecacac2d6c67763b32fea1fe7e4fd
SHA512

757957dc15b292d9b1c3ecefe3858c5d3e754bb90f3f65760802ec4118b24f517c98ec1c2f6f5d6c8cb9311bc5b2849aafbc19c620afd0f20e2ce2ab4a0d2eb8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2848-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2848-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2848-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2848-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	eed2c30860e9d578829f67be8479c0b0N.exe

Executes dropped EXE 3 IoCs

pid	Process
5052	csrsll.exe
1444	csrsll.exe
2848	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2252-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2252-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4632-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4632-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2252-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4632-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023363-29.dat	upx
behavioral2/memory/5052-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4632-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5052-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5052-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2848-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2848-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2848-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5052-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2848-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2848-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4632-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1444-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2848-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-2412658365-3084825385-3340777666-1000\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 2252 set thread context of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 5052 set thread context of 1444	5052	csrsll.exe	101
PID 5052 set thread context of 2848	5052	csrsll.exe	102

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	eed2c30860e9d578829f67be8479c0b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eed2c30860e9d578829f67be8479c0b0N.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	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe
Token: SeDebugPrivilege	1444	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2252	eed2c30860e9d578829f67be8479c0b0N.exe
4632	eed2c30860e9d578829f67be8479c0b0N.exe
5052	csrsll.exe
1444	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 2252 wrote to memory of 4632	2252	eed2c30860e9d578829f67be8479c0b0N.exe	93
PID 4632 wrote to memory of 2480	4632	eed2c30860e9d578829f67be8479c0b0N.exe	94
PID 4632 wrote to memory of 2480	4632	eed2c30860e9d578829f67be8479c0b0N.exe	94
PID 4632 wrote to memory of 2480	4632	eed2c30860e9d578829f67be8479c0b0N.exe	94
PID 2480 wrote to memory of 4900	2480	cmd.exe	97
PID 2480 wrote to memory of 4900	2480	cmd.exe	97
PID 2480 wrote to memory of 4900	2480	cmd.exe	97
PID 4632 wrote to memory of 5052	4632	eed2c30860e9d578829f67be8479c0b0N.exe	98
PID 4632 wrote to memory of 5052	4632	eed2c30860e9d578829f67be8479c0b0N.exe	98
PID 4632 wrote to memory of 5052	4632	eed2c30860e9d578829f67be8479c0b0N.exe	98
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 1444	5052	csrsll.exe	101
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102
PID 5052 wrote to memory of 2848	5052	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\eed2c30860e9d578829f67be8479c0b0N.exe
"C:\Users\Admin\AppData\Local\Temp\eed2c30860e9d578829f67be8479c0b0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\eed2c30860e9d578829f67be8479c0b0N.exe
  "C:\Users\Admin\AppData\Local\Temp\eed2c30860e9d578829f67be8479c0b0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4632
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NDYVU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2480
  - - 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:4900
- - 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:5052
  - - 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:1444
  - - 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:2848

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\NDYVU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ca61d60f3c4b707798c3844f4dfe241f

SHA1
b47d0a9d483b3f34720f3ee980381b73791af8b5

SHA256
faf9e7e53f0848feddb2e107a92dc54ff53ebba8829b51bacfd122dcebae8657

SHA512
c54467caef568d0cd11a818ceff618dde230dfbd8c805bc1a42593b330ac2aaa378725c2b270483b91f96c107a4997d53f9c4c34f9efe5578c15785cd13b45c2

Download Submit
memory/1444-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2252-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/2252-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2252-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2252-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4632-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4632-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4632-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4632-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4632-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4632-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5052-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5052-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5052-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads