modiloader | c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2025, 01:12

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General

Target

c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe
Size

90KB
MD5

e46f1a3416c1dc9e82b6c6c971c012f0
SHA1

ac782705935b627197689c311497cc6f5a01c3b7
SHA256

c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0
SHA512

8afd2efec5627ed4594d8fb1a078b1bb4bf029536aed084d4bc52a415b09ebd08933a1df54c7ed396f60ea37e17c1a2010ebd3509420a83643b60bfd18a86922
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDw: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/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe

Executes dropped EXE 3 IoCs

pid	Process
1980	csrsll.exe
2972	csrsll.exe
4464	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-1-5-21-4050598569-1597076380-177084960-1000\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 1724 set thread context of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1980 set thread context of 2972	1980	csrsll.exe	88
PID 1980 set thread context of 4464	1980	csrsll.exe	89

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1724-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1724-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2608-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2608-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2608-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1724-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cc4-29.dat	upx
behavioral2/memory/2608-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1980-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1980-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1980-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2608-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2972-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4464-62-0x0000000000400000-0x0000000000414000-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	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.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	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe
2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe
1980	csrsll.exe
2972	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 1724 wrote to memory of 2608	1724	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	82
PID 2608 wrote to memory of 1800	2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	83
PID 2608 wrote to memory of 1800	2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	83
PID 2608 wrote to memory of 1800	2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	83
PID 1800 wrote to memory of 4800	1800	cmd.exe	86
PID 1800 wrote to memory of 4800	1800	cmd.exe	86
PID 1800 wrote to memory of 4800	1800	cmd.exe	86
PID 2608 wrote to memory of 1980	2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	87
PID 2608 wrote to memory of 1980	2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	87
PID 2608 wrote to memory of 1980	2608	c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe	87
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 2972	1980	csrsll.exe	88
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89
PID 1980 wrote to memory of 4464	1980	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe
"C:\Users\Admin\AppData\Local\Temp\c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe
  "C:\Users\Admin\AppData\Local\Temp\c2259612bd450ca05825c7f4b504d3ca9687f94bfbe061a3fad36a7c70e629f0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AUVJW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1800
  - - 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:4800
- - 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:1980
  - - 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:2972
  - - 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:4464

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\AUVJW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
722c32e69cd723a1733735476fe73ecc

SHA1
2461e94aa26a38389f7db9af7d89cadff7163f5e

SHA256
9c9d4bdf6b75ac47cdca4c1bb8f93f7cb8665d29df2e60f5624abbee8a5bec61

SHA512
d491eee03eb55b7fd6aec164cf4364d704560e18c08b06287af04daa2d5e1266f5677413383cd52fe82bf8bd9c233177d8d9f76870e11eaa11f06223dce3458c

Download Submit
memory/1724-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1724-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/1724-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1724-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1724-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1724-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1980-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1980-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1980-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2608-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2608-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2608-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2972-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads