modiloader | 4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1

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
03-12-2024 02:31

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General

Target

4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe
Size

90KB
MD5

76483a598952f7aba7f588a630bbb2a7
SHA1

8a581772cb11b593f7c718f5ede4dd44cf37a83f
SHA256

4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1
SHA512

27cbfaeb746461605ff78554d729c61ea55b3a39429c2e80dd53daea0bde05361eedc4d52b33f3c003569be4f4e6587852b6f67950f04d2b02c27ac984c3b2c9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDR:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3b

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/3444-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3444-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3444-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3444-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe

Executes dropped EXE 3 IoCs

pid	Process
2172	csrsll.exe
4628	csrsll.exe
3444	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-1-5-21-2437139445-1151884604-3026847218-1000\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 4812 set thread context of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 2172 set thread context of 4628	2172	csrsll.exe	104
PID 2172 set thread context of 3444	2172	csrsll.exe	105

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4812-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4812-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1336-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1336-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1336-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4812-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023ca5-29.dat	upx
behavioral2/memory/1336-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2172-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2172-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3444-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3444-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3444-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3444-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3444-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2172-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1336-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4628-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3444-63-0x0000000000400000-0x0000000000414000-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	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe
1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe
2172	csrsll.exe
4628	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 4812 wrote to memory of 1336	4812	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	87
PID 1336 wrote to memory of 4236	1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	93
PID 1336 wrote to memory of 4236	1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	93
PID 1336 wrote to memory of 4236	1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	93
PID 4236 wrote to memory of 4076	4236	cmd.exe	97
PID 4236 wrote to memory of 4076	4236	cmd.exe	97
PID 4236 wrote to memory of 4076	4236	cmd.exe	97
PID 1336 wrote to memory of 2172	1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	98
PID 1336 wrote to memory of 2172	1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	98
PID 1336 wrote to memory of 2172	1336	4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe	98
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 4628	2172	csrsll.exe	104
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105
PID 2172 wrote to memory of 3444	2172	csrsll.exe	105

C:\Users\Admin\AppData\Local\Temp\4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe
"C:\Users\Admin\AppData\Local\Temp\4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Users\Admin\AppData\Local\Temp\4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe
  "C:\Users\Admin\AppData\Local\Temp\4bb150b6ee9412b2a11177576b3ff1c0a6eaff1ece3c83209ac2df4e62dffdc1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1336
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CFQSN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4236
  - - 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:4076
- - 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:2172
  - - 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:4628
  - - 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:3444

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\CFQSN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
dafccb33393edf2aa62277c8f9c368b4

SHA1
f1f835817219195fe28c69989602f7c065596e38

SHA256
b580c38d051c5c3f8e6861c2484ec4e58b9176ada2fe59b22d42d9d82c383815

SHA512
84d11ef469db4ad0123a3581ce53fb046b0e20fbc09c50d9c8f316c0ad1d542ee16fd07efe2de1e517ec5252c52c84b70c89cae75fd600416add7ff74b726254

Download Submit
memory/1336-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1336-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1336-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1336-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1336-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2172-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3444-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3444-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3444-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3444-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3444-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3444-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4628-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4812-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4812-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4812-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4812-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4812-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4812-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads