modiloader | 7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41

Analysis

max time kernel
119s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 13:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe
Size

90KB
MD5

22d54b8434c25fd4f4f68cd55912db10
SHA1

0f1004f39251804503fee734290dd7c3fa644f24
SHA256

7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41
SHA512

c5d02b40fe47f8c7134d00cc8aa12113fe12e2742b217bc19f1bacdd785b5e5e79931aaa36884361914d20f18bcceee929de402daa959e15c34642d92fa46ece
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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1512-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1512-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1512-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1512-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe

Executes dropped EXE 3 IoCs

pid	Process
740	csrsll.exe
4576	csrsll.exe
1512	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-1-5-21-3350944739-639801879-157714471-1000\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 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 740 set thread context of 4576	740	csrsll.exe	102
PID 740 set thread context of 1512	740	csrsll.exe	103

UPX packed file 20 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/1132-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1132-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1132-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4180-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000f000000023a70-29.dat	upx
behavioral2/memory/740-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1132-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/740-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/740-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1512-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1512-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/740-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1512-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1512-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1512-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1132-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4576-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1512-63-0x0000000000400000-0x0000000000414000-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	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.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	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe
Token: SeDebugPrivilege	4576	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe
1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe
740	csrsll.exe
4576	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 4180 wrote to memory of 1132	4180	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	93
PID 1132 wrote to memory of 2124	1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	94
PID 1132 wrote to memory of 2124	1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	94
PID 1132 wrote to memory of 2124	1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	94
PID 2124 wrote to memory of 3440	2124	cmd.exe	98
PID 2124 wrote to memory of 3440	2124	cmd.exe	98
PID 2124 wrote to memory of 3440	2124	cmd.exe	98
PID 1132 wrote to memory of 740	1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	100
PID 1132 wrote to memory of 740	1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	100
PID 1132 wrote to memory of 740	1132	7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe	100
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 4576	740	csrsll.exe	102
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103
PID 740 wrote to memory of 1512	740	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe
"C:\Users\Admin\AppData\Local\Temp\7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.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\7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe
  "C:\Users\Admin\AppData\Local\Temp\7408f54bd8b4bb9fd17b2be5c9437cec96f16d91d4253973b97e8d13bcef2a41N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1132
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\COWNB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2124
  - - 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:3440
- - 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:740
  - - 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:4576
  - - 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:1512

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\COWNB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
96997895df178a823f63c071552ed6e5

SHA1
40b19ca34ed3e8b8cbcb3b7c69593901c65dba0a

SHA256
4649408b1a586dec590f4bd8c1aa059f53c4e53d4ffd085d5fa734dc36fa9eb6

SHA512
6c9e1c74295b0a43fbdf688570a38ee9081bed23b691705c3c8843ff410dc7f739e98619c9fce79a174d53b8811087c4eead949806bc26da892967056bafa355

Download Submit
memory/740-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/740-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/740-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/740-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1132-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1132-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1132-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1132-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1132-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1132-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1512-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1512-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1512-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1512-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1512-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1512-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

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

Filesize
332KB

Download
memory/4180-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4180-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

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

Filesize
332KB

Download
memory/4180-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4180-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4576-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads