modiloader | 2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2025 22:20

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General

Target

2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe
Size

90KB
MD5

a2256bd5c2eedd14bf5bc75b3c3904f8
SHA1

043c1d04d3f1167fda989922168c99818b60a477
SHA256

2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014
SHA512

b2c20e20c263862e6759df11dbcadc0a5cd777941064ad7e21bd4fe0d0fb277c15672ba03b39939fad395dc1ae3bf7f81f1aa8460dadc450419bdfc8b1a4cb5e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3/

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/816-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/816-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/816-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/816-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe

Executes dropped EXE 3 IoCs

pid	Process
460	csrsll.exe
3304	csrsll.exe
816	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-1-5-21-4089630652-1596403869-279772308-1000\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 1768 set thread context of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 460 set thread context of 3304	460	csrsll.exe	97
PID 460 set thread context of 816	460	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1768-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1768-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2080-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2080-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1768-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2080-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cd0-29.dat	upx
behavioral2/memory/2080-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/460-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/460-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/816-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/816-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/460-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/816-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/816-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/816-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2080-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3304-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/816-62-0x0000000000400000-0x0000000000414000-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	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.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	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe
Token: SeDebugPrivilege	3304	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe
2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe
460	csrsll.exe
3304	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 1768 wrote to memory of 2080	1768	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	88
PID 2080 wrote to memory of 1120	2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	90
PID 2080 wrote to memory of 1120	2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	90
PID 2080 wrote to memory of 1120	2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	90
PID 1120 wrote to memory of 1380	1120	cmd.exe	93
PID 1120 wrote to memory of 1380	1120	cmd.exe	93
PID 1120 wrote to memory of 1380	1120	cmd.exe	93
PID 2080 wrote to memory of 460	2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	94
PID 2080 wrote to memory of 460	2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	94
PID 2080 wrote to memory of 460	2080	2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe	94
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 3304	460	csrsll.exe	97
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98
PID 460 wrote to memory of 816	460	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe
"C:\Users\Admin\AppData\Local\Temp\2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Local\Temp\2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe
  "C:\Users\Admin\AppData\Local\Temp\2a0c38ae3787e57cfa7ddc84f5a839ba452a0ff6e10f439b5c8ce56d11b60014.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CQLJY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1120
  - - 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:1380
- - 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:460
  - - 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:3304
  - - 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:816

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\CQLJY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fb1c2edf384478741dc80106607a26b8

SHA1
7bf8ae65ae8b20d250b3e3e31b2abc5308748428

SHA256
26bb9aac91531484e0166cffdad4034efbbceeed6a9949adceaaf49ad33f4078

SHA512
d51d65dcf383d85427832b1ebe2950e227da5241520487a4de6da3001cdcf92bbc573412f2e4946874d94f31f703a9ca75be304131a19907079fb22cd0025110

Download Submit
memory/460-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/816-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1768-5-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/1768-6-0x0000000002940000-0x0000000002942000-memory.dmp

Filesize
8KB

Download
memory/1768-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1768-3-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/1768-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1768-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2080-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2080-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2080-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2080-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2080-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2080-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3304-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads