modiloader | 8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c

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
16/01/2025, 14:10

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General

Target

8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
Size

90KB
MD5

fcef0cc9248cb4bce5802178231f4875
SHA1

da7f5f9d48163ef5e56288fc1bb2e6f9961e897e
SHA256

8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c
SHA512

efccd5b28c67c6410a2cb2be0b22de5ffef2e8530291d8129470be10fc559dceb7bc1e291a648e2f47845e0727b92151d1ece1db9374d83c5a6c239d0237387e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDv: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/4344-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4344-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4344-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4344-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe

Executes dropped EXE 3 IoCs

pid	Process
4124	csrsll.exe
2960	csrsll.exe
4344	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-1-5-21-3442511616-637977696-3186306149-1000\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 2624 set thread context of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 4124 set thread context of 2960	4124	csrsll.exe	88
PID 4124 set thread context of 4344	4124	csrsll.exe	89

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2624-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2624-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3508-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3508-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3508-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2624-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cab-29.dat	upx
behavioral2/memory/3508-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4124-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4124-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4344-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4124-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3508-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2960-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4344-61-0x0000000000400000-0x0000000000414000-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	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe
Token: SeDebugPrivilege	2960	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
4124	csrsll.exe
2960	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 2624 wrote to memory of 3508	2624	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	82
PID 3508 wrote to memory of 4276	3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	83
PID 3508 wrote to memory of 4276	3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	83
PID 3508 wrote to memory of 4276	3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	83
PID 4276 wrote to memory of 2156	4276	cmd.exe	86
PID 4276 wrote to memory of 2156	4276	cmd.exe	86
PID 4276 wrote to memory of 2156	4276	cmd.exe	86
PID 3508 wrote to memory of 4124	3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 3508 wrote to memory of 4124	3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 3508 wrote to memory of 4124	3508	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 2960	4124	csrsll.exe	88
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89
PID 4124 wrote to memory of 4344	4124	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
"C:\Users\Admin\AppData\Local\Temp\8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Local\Temp\8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
  "C:\Users\Admin\AppData\Local\Temp\8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3508
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\THTFD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4276
  - - 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:4124
  - - 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:2960
  - - 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:4344

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\THTFD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
97d35bdf159d94ddf309953e57a8339d

SHA1
fe94578d72ec77e1baed5bbb211f793373b9be29

SHA256
07998b9d5f495cd9b4f8463a8f5cdb6899e4dcc702f644180d5273b33ff8e713

SHA512
0d31864a727d5678e732a139f9dd35a82ac2fee708107b840c14d1bc240236ce55ff0818f517a22555c328d360b80204acbc6c6c7b8802d0534f45d5335468cd

Download Submit
memory/2624-3-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download
memory/2624-4-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/2624-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2624-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/2624-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2624-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2960-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3508-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3508-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3508-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3508-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3508-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4124-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4124-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4124-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4344-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads