modiloader | f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99

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
22-12-2024 12:53

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General

Target

f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe
Size

90KB
MD5

67b9096e567b7b608fa4630ea96d7993
SHA1

28cf6b69cd6a1d44dab0aff8f82a78a13f2c1c4d
SHA256

f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99
SHA512

baae203005ee83d5170175573fda28c57b0f975f8b446b84c550d39334bc3542c4bff2c29edfda7635d57eb98b51d0ea771c76cee8b08ae08ec7a909b10ff891
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3M

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/4568-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4568-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4568-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4568-60-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe

Executes dropped EXE 3 IoCs

pid	Process
3400	csrsll.exe
3228	csrsll.exe
4568	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-1-5-21-493223053-2004649691-1575712786-1000\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 464 set thread context of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 3400 set thread context of 3228	3400	csrsll.exe	98
PID 3400 set thread context of 4568	3400	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/464-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/464-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4224-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4224-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4224-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/464-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b87-28.dat	upx
behavioral2/memory/4224-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3400-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3400-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4568-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4568-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4568-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4568-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4568-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3400-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4224-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3228-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4568-60-0x0000000000400000-0x0000000000414000-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	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	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.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	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe
Token: SeDebugPrivilege	3228	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe
4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe
3400	csrsll.exe
3228	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 464 wrote to memory of 4224	464	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	83
PID 4224 wrote to memory of 4980	4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	84
PID 4224 wrote to memory of 4980	4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	84
PID 4224 wrote to memory of 4980	4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	84
PID 4980 wrote to memory of 5004	4980	cmd.exe	88
PID 4980 wrote to memory of 5004	4980	cmd.exe	88
PID 4980 wrote to memory of 5004	4980	cmd.exe	88
PID 4224 wrote to memory of 3400	4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	89
PID 4224 wrote to memory of 3400	4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	89
PID 4224 wrote to memory of 3400	4224	f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe	89
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 3228	3400	csrsll.exe	98
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99
PID 3400 wrote to memory of 4568	3400	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe
"C:\Users\Admin\AppData\Local\Temp\f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:464
- C:\Users\Admin\AppData\Local\Temp\f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe
  "C:\Users\Admin\AppData\Local\Temp\f9d210f3a3889b6a7291578008e89c72f122d4fdb43f5938829481cc8afa5e99.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4224
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AOJHY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4980
  - - 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:5004
- - 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:3400
  - - 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:3228
  - - 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:4568

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\AOJHY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f5da48852c43c2d494c8b22f905fe31e

SHA1
8e017508f3a002cf8bc6d23de296f116a8f7caf2

SHA256
4a17d0aad80bc6aba565559276687fccee30ad5cad3a5cc4b2fefa576a466ae1

SHA512
88333eeb19f189559e4d43fedb2d93e2c95b7b69f77bda281b2432be445d1f47fdacfbe7b03db3cd8d66a79b198b072e7fecc72055f6b5ed57f57c7b9fb0efa6

Download Submit
memory/464-3-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/464-4-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/464-6-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/464-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/464-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/464-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3228-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3400-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4224-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4224-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4224-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4224-56-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4224-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4224-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4568-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads