modiloader | 8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c

Analysis

max time kernel
149s
max time network
150s
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, 14:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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/4440-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4440-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4440-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4440-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe

Executes dropped EXE 3 IoCs

pid	Process
2088	csrsll.exe
4900	csrsll.exe
4440	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-1-5-21-2045521122-590294423-3465680274-1000\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 4740 set thread context of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 2088 set thread context of 4900	2088	csrsll.exe	103
PID 2088 set thread context of 4440	2088	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4740-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4740-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3964-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3964-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3964-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4740-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000400000001e762-29.dat	upx
behavioral2/memory/3964-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2088-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2088-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4440-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4440-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4440-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4440-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4440-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2088-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3964-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4900-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4440-61-0x0000000000400000-0x0000000000414000-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	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe
Token: SeDebugPrivilege	4900	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe
2088	csrsll.exe
4900	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 4740 wrote to memory of 3964	4740	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	87
PID 3964 wrote to memory of 4248	3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	92
PID 3964 wrote to memory of 4248	3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	92
PID 3964 wrote to memory of 4248	3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	92
PID 4248 wrote to memory of 4876	4248	cmd.exe	96
PID 4248 wrote to memory of 4876	4248	cmd.exe	96
PID 4248 wrote to memory of 4876	4248	cmd.exe	96
PID 3964 wrote to memory of 2088	3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	97
PID 3964 wrote to memory of 2088	3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	97
PID 3964 wrote to memory of 2088	3964	8607478b7681225a3b6e397d71765f81e6385793afa99c560dcfc833b818bb2c.exe	97
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4900	2088	csrsll.exe	103
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104
PID 2088 wrote to memory of 4440	2088	csrsll.exe	104

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:4740
- 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:3964
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YYKSJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4248
  - - 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:4876
- - 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:2088
  - - 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:4900
  - - 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:4440

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

Loading Replay Monitor...

Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2cfea377c7b401cc9887d485149614a5

SHA1
830f7a5d817b3e4d1c59cff7a1157efcb440fec2

SHA256
7407115551b13187c420ea0ffff74dd21b5e249f135481d1cfb161f774e686ab

SHA512
29fb3a9bb7d627289b7b4e5735695b73a1e625a7054f746435645a277c56e815d12ebb8357fdec6df7956522080e674f17b5d4d20c4c8e19816fd35fc00eee24

Download Submit
memory/2088-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2088-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2088-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3964-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3964-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3964-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3964-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3964-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4440-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4440-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4440-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4440-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4440-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4440-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4740-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/4740-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4740-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4740-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4740-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4740-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4900-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads