modiloader | cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377

Analysis

max time kernel
119s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 05:37

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General

Target

cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
Size

90KB
MD5

568191ff4d42f3b4e07c846000396d53
SHA1

a00dcd3c927796699210b90f2b26b0994b176b28
SHA256

cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377
SHA512

62cb24feaa515846fcb03674b8b9cc6b86117d889c7dfc6431611681df3eb97d98080f6ab1adeaad779511150a10647830d66ba2d28f2730fd89663a09f85b04
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDM:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3K

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/3800-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe

Executes dropped EXE 3 IoCs

pid	Process
316	csrsll.exe
1844	csrsll.exe
3800	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 4644 set thread context of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 316 set thread context of 1844	316	csrsll.exe	98
PID 316 set thread context of 3800	316	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4644-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4644-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1740-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1740-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1740-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4644-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb0-29.dat	upx
behavioral2/memory/1740-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/316-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3800-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/316-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/316-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1740-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1844-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3800-62-0x0000000000400000-0x0000000000414000-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	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	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
316	csrsll.exe
1844	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 4644 wrote to memory of 1740	4644	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	83
PID 1740 wrote to memory of 2160	1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	84
PID 1740 wrote to memory of 2160	1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	84
PID 1740 wrote to memory of 2160	1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	84
PID 2160 wrote to memory of 2520	2160	cmd.exe	88
PID 2160 wrote to memory of 2520	2160	cmd.exe	88
PID 2160 wrote to memory of 2520	2160	cmd.exe	88
PID 1740 wrote to memory of 316	1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	89
PID 1740 wrote to memory of 316	1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	89
PID 1740 wrote to memory of 316	1740	cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe	89
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 1844	316	csrsll.exe	98
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99
PID 316 wrote to memory of 3800	316	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
"C:\Users\Admin\AppData\Local\Temp\cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Users\Admin\AppData\Local\Temp\cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe
  "C:\Users\Admin\AppData\Local\Temp\cba2f888e4d9246e11708dd4cf62cc4eed645abd37ec7cda5ee278b76d21a377.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KYUSC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2160
  - - 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:2520
- - 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:316
  - - 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:1844
  - - 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:3800

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9e53c6d63d3682b5f61f598f79890e60

SHA1
69f76f48feb815bf4ddbbd54896dd34586881cc5

SHA256
a9f5408caae664373021ca6256655d15c856bc02f7a915f7f2a81959c0ddf22f

SHA512
548df969a9b3c1e627d1eee5456107b351b8709db005bab3390249036a0c094de64a066e26b31c9dda1b725a5dbb96c871af24758f5495bbceed9cdd8bd448e1

Download Submit
memory/316-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/316-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/316-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1740-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1740-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1740-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1740-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1740-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1844-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3800-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4644-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4644-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4644-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4644-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4644-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4644-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads