modiloader | a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca

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
07/01/2025, 21:35

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General

Target

a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
Size

90KB
MD5

5c0a361750036448547f4c5762ab8da4
SHA1

57b294b73d2a6ecd6a28b5e188ed56c917d975b4
SHA256

a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca
SHA512

2a904065807d186dd91225c1893ba867f2a6750545f8ab744cb3124009e7714fce36444d5cc47b6acb7dd2055d70f58158c93d59322052298f9c1427e5f38c95
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3X

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/3596-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3596-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3596-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3596-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe

Executes dropped EXE 3 IoCs

pid	Process
2124	csrsll.exe
3312	csrsll.exe
3596	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 2548 set thread context of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2124 set thread context of 3312	2124	csrsll.exe	95
PID 2124 set thread context of 3596	2124	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2548-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2548-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/32-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/32-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2548-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/32-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b84-29.dat	upx
behavioral2/memory/32-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2124-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2124-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3596-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3596-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3596-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3596-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2124-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3596-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/32-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3312-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3596-62-0x0000000000400000-0x0000000000414000-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	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	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe
Token: SeDebugPrivilege	3312	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
2124	csrsll.exe
3312	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 2548 wrote to memory of 32	2548	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	86
PID 32 wrote to memory of 2180	32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	87
PID 32 wrote to memory of 2180	32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	87
PID 32 wrote to memory of 2180	32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	87
PID 2180 wrote to memory of 1472	2180	cmd.exe	90
PID 2180 wrote to memory of 1472	2180	cmd.exe	90
PID 2180 wrote to memory of 1472	2180	cmd.exe	90
PID 32 wrote to memory of 2124	32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	91
PID 32 wrote to memory of 2124	32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	91
PID 32 wrote to memory of 2124	32	a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe	91
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3312	2124	csrsll.exe	95
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96
PID 2124 wrote to memory of 3596	2124	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
"C:\Users\Admin\AppData\Local\Temp\a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Local\Temp\a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe
  "C:\Users\Admin\AppData\Local\Temp\a6f54199508f0cde2681e6cd8bbfcd84d3204a812cc5af62d2931fb934fc88ca.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:32
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NBMVM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2180
  - - 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:1472
- - 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:2124
  - - 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:3312
  - - 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:3596

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\NBMVM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
015e7d1c987ef84e79ab4135f2bc0500

SHA1
c0499068dd3a23b6ca078c1fa92f41359319420d

SHA256
2dc50d35bc8c8a3d45ee9962e69b41f36e772059ceccc987e0569c57fbcafb1e

SHA512
f76293bfb42ddcc77bf47420d68da71ea098d2e1b0d9ce154f0c6ed1eef255851802bf955a5315337a219405fb2af33c507c0759becbc5ea8eb9be150feefccd

Download Submit
memory/32-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/32-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/32-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/32-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/32-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2124-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2124-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/2548-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2548-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-6-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/3312-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3596-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3596-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3596-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3596-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3596-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3596-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads