modiloader | 1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 09:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe
Size

90KB
MD5

aa6a4109c63766e87fd6c568e34540d0
SHA1

34511f01c7a6109e60b09ddd1cdb44ca2c11442b
SHA256

1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6
SHA512

a3d02d62c8f67923ee54d4443efaf4dea5b1497e82e1c488f52063c5b35f60d50c3f6a2cd69b6fbe6e325c8a8640bcb1b4a2d307e544c7385d647acb4b2898b6
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDf: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/2744-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2744-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2744-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2744-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe

Executes dropped EXE 3 IoCs

pid	Process
3060	csrsll.exe
3656	csrsll.exe
2744	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-1-5-21-493223053-2004649691-1575712786-1000\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 4180 set thread context of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 3060 set thread context of 3656	3060	csrsll.exe	97
PID 3060 set thread context of 2744	3060	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4180-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4180-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1476-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1476-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1476-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4180-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000e000000023a68-30.dat	upx
behavioral2/memory/1476-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3060-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3060-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2744-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3060-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1476-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2744-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3656-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2744-62-0x0000000000400000-0x0000000000414000-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	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe
Token: SeDebugPrivilege	3656	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe
1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe
3060	csrsll.exe
3656	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 4180 wrote to memory of 1476	4180	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	85
PID 1476 wrote to memory of 4212	1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	86
PID 1476 wrote to memory of 4212	1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	86
PID 1476 wrote to memory of 4212	1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	86
PID 4212 wrote to memory of 3900	4212	cmd.exe	90
PID 4212 wrote to memory of 3900	4212	cmd.exe	90
PID 4212 wrote to memory of 3900	4212	cmd.exe	90
PID 1476 wrote to memory of 3060	1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	91
PID 1476 wrote to memory of 3060	1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	91
PID 1476 wrote to memory of 3060	1476	1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe	91
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 3656	3060	csrsll.exe	97
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98
PID 3060 wrote to memory of 2744	3060	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe
"C:\Users\Admin\AppData\Local\Temp\1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe
  "C:\Users\Admin\AppData\Local\Temp\1a5d96a0023397cbc27b3f824247f572e01507ded594d55c5f5e920350637ba6N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TUQOQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4212
  - - 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:3900
- - 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:3060
  - - 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:3656
  - - 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:2744

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\TUQOQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1a638c7dc2cc733cbfad9d3d9e2bd8f4

SHA1
71e2555e6d42c90530c269843610330e07477b45

SHA256
acabeac16b31a179f7a6ed3ec2fb18234b9e59ca30acfeb965acba00bb776d47

SHA512
c289070e1117a65e34e2d84fbac1348cc64b18ba150bff5a6146304cc6f25062dd986eb2592617efe1be9eb6633d0cbb43af9e36011cb5ec4b39f90ca3ceacca

Download Submit
memory/1476-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1476-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1476-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1476-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1476-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2744-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3060-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3060-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3060-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3656-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4180-6-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/4180-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/4180-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4180-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4180-7-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4180-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4180-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads