modiloader | 13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 17:51

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General

Target

13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe
Size

90KB
MD5

51d70a54f08b4cf59421eb53c7311032
SHA1

6009ccb2a434567941c04434dbd213d6961099f0
SHA256

13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13
SHA512

1fbf21eca78530d345391a31822b0f0fd26933b13121363b4fc97a8c3c57dec62c831c155dc4ea5365c09b96ef36f7e3f8f6fc14a6c2c9300eccd8266ac3d759
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDa:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE30

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/3156-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3156-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3156-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3156-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe

Executes dropped EXE 3 IoCs

pid	Process
3692	csrsll.exe
1908	csrsll.exe
3156	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-1-5-21-4050598569-1597076380-177084960-1000\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 3400 set thread context of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3692 set thread context of 1908	3692	csrsll.exe	92
PID 3692 set thread context of 3156	3692	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3400-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3400-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4288-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4288-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3400-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4288-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c99-29.dat	upx
behavioral2/memory/4288-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3692-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3692-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3156-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3156-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3156-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3156-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3692-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3156-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4288-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1908-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3156-61-0x0000000000400000-0x0000000000414000-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	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	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe
Token: SeDebugPrivilege	1908	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe
4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe
3692	csrsll.exe
1908	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 3400 wrote to memory of 4288	3400	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	82
PID 4288 wrote to memory of 2512	4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	83
PID 4288 wrote to memory of 2512	4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	83
PID 4288 wrote to memory of 2512	4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	83
PID 2512 wrote to memory of 2376	2512	cmd.exe	86
PID 2512 wrote to memory of 2376	2512	cmd.exe	86
PID 2512 wrote to memory of 2376	2512	cmd.exe	86
PID 4288 wrote to memory of 3692	4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	87
PID 4288 wrote to memory of 3692	4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	87
PID 4288 wrote to memory of 3692	4288	13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe	87
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 1908	3692	csrsll.exe	92
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93
PID 3692 wrote to memory of 3156	3692	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe
"C:\Users\Admin\AppData\Local\Temp\13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Users\Admin\AppData\Local\Temp\13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe
  "C:\Users\Admin\AppData\Local\Temp\13c2b35f4462d1fcba2ed92b6ab4f42fc0583dc9a91f5f92e39d34cbbb8dea13.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WKXIG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2512
  - - 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:2376
- - 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:3692
  - - 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:1908
  - - 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:3156

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\WKXIG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
78c50177e6180c3132444a5bca1c4b68

SHA1
c7c00345adf57568f1d54d897925e47f6bc008cd

SHA256
a26540b9cbd18675004391e60fd23e05e44907449aff9ad33557d60dcd15f4c7

SHA512
b36ad2c99a68f2c0a924b30b1d98ad470a29a6044d0eaa0603095e853ee5a481c10c6bb5870e3d084f4e203cce77e09e7ede9be6c5d1318121993239be6442f2

Download Submit
memory/1908-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3156-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3156-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3156-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3156-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3156-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3156-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3400-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3400-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/3400-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/3400-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3692-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3692-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3692-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4288-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4288-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4288-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4288-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4288-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads