modiloader | a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/01/2025, 05:38

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General

Target

a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe
Size

90KB
MD5

fc4ffbcbdac28efd3e6356060b553889
SHA1

c462ee140d06c4dd7e16d8752df23e64ce3bd2b5
SHA256

a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d
SHA512

28c29dc68b2656a80b9c7ec6871a6e4ec9f8f86794bacee7f9f1b81d29f1adc4bfa321ee03a7f72ca3763cfaf4ed44f20d9f6857b78fda1d4c7eabb2c7e6df87
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3j

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/2440-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2440-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2440-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2440-60-0x0000000000400000-0x0000000000414000-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	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe

Executes dropped EXE 3 IoCs

pid	Process
2204	csrsll.exe
4020	csrsll.exe
2440	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 2356 set thread context of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2204 set thread context of 4020	2204	csrsll.exe	104
PID 2204 set thread context of 2440	2204	csrsll.exe	105

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2356-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2356-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/748-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/748-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2356-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/748-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b93-28.dat	upx
behavioral2/memory/748-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2204-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2204-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2440-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2204-50-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2440-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/748-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4020-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2440-60-0x0000000000400000-0x0000000000414000-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	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.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	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe
Token: SeDebugPrivilege	4020	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe
748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe
2204	csrsll.exe
4020	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 2356 wrote to memory of 748	2356	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	86
PID 748 wrote to memory of 4232	748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	92
PID 748 wrote to memory of 4232	748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	92
PID 748 wrote to memory of 4232	748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	92
PID 4232 wrote to memory of 2156	4232	cmd.exe	96
PID 4232 wrote to memory of 2156	4232	cmd.exe	96
PID 4232 wrote to memory of 2156	4232	cmd.exe	96
PID 748 wrote to memory of 2204	748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	97
PID 748 wrote to memory of 2204	748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	97
PID 748 wrote to memory of 2204	748	a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe	97
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 4020	2204	csrsll.exe	104
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105
PID 2204 wrote to memory of 2440	2204	csrsll.exe	105

C:\Users\Admin\AppData\Local\Temp\a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe
"C:\Users\Admin\AppData\Local\Temp\a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe
  "C:\Users\Admin\AppData\Local\Temp\a8ba66d4f201e4653f12d90e63d04892871c60289b6c10d85ae0c85705a0233d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:748
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XNOLU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4232
  - - 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:2156
- - 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:2204
  - - 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:4020
  - - 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:2440

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\XNOLU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
22788f85660a1d32280c2c9b097ff085

SHA1
8f9ccc165d618eb42fc164f9e30240f8b947ef64

SHA256
651a3da379042659bc19d1fb4d843489f9ece2a4c5a411242dfa401c1889194f

SHA512
1f48e9914cbf90b46fe208bad013705a8855f217cc921d06bb8573a8957f230d818d6b8d10593c4626f007d007e0bd6eb94213607e2a8b700b721aa1e8c73fc1

Download Submit
memory/748-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/748-55-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/748-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/748-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/748-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/748-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2204-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2204-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2204-50-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-4-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/2356-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/2356-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-3-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/2356-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2440-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4020-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads