modiloader | 88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4

Analysis

max time kernel
120s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 03:18

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General

Target

88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe
Size

90KB
MD5

925de29eaf04f529cce94cb07a35aec0
SHA1

0f1af828b62936700acba2348a52f8b1da68b1b1
SHA256

88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4
SHA512

25c661d4a5defacfe581a389fee2460031fc22f0692d8825496afeb19018cc7433bafffa5b97ab44dbad068de3366901c971643f43f119478675a32b3989ba82
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/3988-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3988-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3988-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3988-61-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe

Executes dropped EXE 3 IoCs

pid	Process
2104	csrsll.exe
4668	csrsll.exe
3988	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-1-5-21-493223053-2004649691-1575712786-1000\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 1216 set thread context of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 2104 set thread context of 4668	2104	csrsll.exe	100
PID 2104 set thread context of 3988	2104	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1216-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1216-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3468-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3468-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3468-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1216-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7c-29.dat	upx
behavioral2/memory/2104-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3468-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2104-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2104-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3988-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2104-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3468-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4668-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3988-61-0x0000000000400000-0x0000000000414000-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	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe
Token: SeDebugPrivilege	4668	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe
3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe
2104	csrsll.exe
4668	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 1216 wrote to memory of 3468	1216	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	86
PID 3468 wrote to memory of 452	3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	87
PID 3468 wrote to memory of 452	3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	87
PID 3468 wrote to memory of 452	3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	87
PID 452 wrote to memory of 3708	452	cmd.exe	91
PID 452 wrote to memory of 3708	452	cmd.exe	91
PID 452 wrote to memory of 3708	452	cmd.exe	91
PID 3468 wrote to memory of 2104	3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	92
PID 3468 wrote to memory of 2104	3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	92
PID 3468 wrote to memory of 2104	3468	88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe	92
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 4668	2104	csrsll.exe	100
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101
PID 2104 wrote to memory of 3988	2104	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe
"C:\Users\Admin\AppData\Local\Temp\88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe
  "C:\Users\Admin\AppData\Local\Temp\88438b950c44e0d97fcb3abc65ea9e83be92bd04d6bc1981a3b5e07a8a608fb4N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UHLHF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:452
  - - 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:3708
- - 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:2104
  - - 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:4668
  - - 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:3988

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\UHLHF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
7f6061f6505706c5f0fcad53451d9987

SHA1
3df45732f21b2a90b04ed9e53c55d62d7c4dd203

SHA256
dd0d09e6409ed03ecde828a37cf0b0362304305f1fe4fa60c0b5ffb4f689a99d

SHA512
6d9e10c490bbf6b9d7681fb2f86fd6c64fa8f85499bbe6a7d8451409a629cf89de501ec11beb98c2564366c901e08c6ed1d1fc0b392a8e5b39529c73a44b5670

Download Submit
memory/1216-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1216-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/1216-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/1216-5-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/1216-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1216-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3468-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3468-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3468-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3468-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3468-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3988-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4668-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads