modiloader | c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642a

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
31-12-2024 21:21

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General

Target

c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe
Size

300KB
MD5

68ce3677fb39228c6abbb3b7d9cbe800
SHA1

8c9bb4b2f48c86f9171b5f21096376a27a6565a8
SHA256

c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642a
SHA512

e51488f571fd63a09b93790d875db9cf39971457f8016ce042165b17921847eaaa2e499b8854ac28722c40b5185c878f2753ccde0beafd90cb3c6d4e9f0dd50a
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38GU:UsxD5cwohO+O1sVG0/pZ6iPC8a

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/4828-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4828-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4828-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4828-59-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe

Executes dropped EXE 3 IoCs

pid	Process
2996	csrsll.exe
1880	csrsll.exe
4828	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-1-5-21-2878641211-696417878-3864914810-1000\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 540 set thread context of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 2996 set thread context of 1880	2996	csrsll.exe	96
PID 2996 set thread context of 4828	2996	csrsll.exe	97

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/676-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/676-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/676-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/676-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4828-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/676-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1880-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4828-59-0x0000000000400000-0x0000000000414000-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	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.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	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe
Token: SeDebugPrivilege	1880	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe
676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe
2996	csrsll.exe
1880	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 540 wrote to memory of 676	540	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	84
PID 676 wrote to memory of 1092	676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	85
PID 676 wrote to memory of 1092	676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	85
PID 676 wrote to memory of 1092	676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	85
PID 1092 wrote to memory of 2500	1092	cmd.exe	89
PID 1092 wrote to memory of 2500	1092	cmd.exe	89
PID 1092 wrote to memory of 2500	1092	cmd.exe	89
PID 676 wrote to memory of 2996	676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	90
PID 676 wrote to memory of 2996	676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	90
PID 676 wrote to memory of 2996	676	c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe	90
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 1880	2996	csrsll.exe	96
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97
PID 2996 wrote to memory of 4828	2996	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe
"C:\Users\Admin\AppData\Local\Temp\c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe
  "C:\Users\Admin\AppData\Local\Temp\c9e82a4359cc99fcf53b2dd93b41c7d385af977700df33558a6bf26ecafc642aN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:676
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KPACF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1092
  - - 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:2500
- - 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:2996
  - - 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:1880
  - - 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:4828

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\KPACF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
bb67fe6ad29baea411b12717cac3702d

SHA1
6457e2f23b789f6b61a5e72d932cee7ff601677e

SHA256
6e310fe5f7f75655e8160c0aaca86f3156539e002e06f77c8c911c51e3f7313f

SHA512
7c5c42c51ca57027314879f68990eeb95fd3a0b091d5380f59762f37d5367e9371a14b41140cfea9893053cf33c5342582868dc56e42f1d3a3b2b3c9d716e19f

Download Submit
memory/540-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/540-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/540-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/540-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/676-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/676-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/676-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/676-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/676-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1880-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2996-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2996-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2996-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4828-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads