modiloader | 334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cb

Analysis

max time kernel
118s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2025, 08:40

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General

Target

334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
Size

94KB
MD5

2ec9b63a3af42f5662684235b707d7f0
SHA1

eabd6c1c3399da30d892f4112b82824abb0ee96b
SHA256

334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cb
SHA512

f860a9658d240af71e30860b5e2d33fee1dda7c7baa59016654c822e3c30d802ff9d2b7a2f1b9956b09f0c012fbaacdbeda2a2477f70169a4fa855770df2f44e
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/n:/pdyLALwACPmV3NYaYLiwIt3raA5BRfy

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/3544-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3544-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3544-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3544-60-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe

Executes dropped EXE 3 IoCs

pid	Process
1352	csrsll.exe
2356	csrsll.exe
3544	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-1-5-21-2878641211-696417878-3864914810-1000\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 708 set thread context of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 1352 set thread context of 2356	1352	csrsll.exe	92
PID 1352 set thread context of 3544	1352	csrsll.exe	93

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/708-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1300-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1300-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/708-10-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1300-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cbd-27.dat	upx
behavioral2/memory/1352-37-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1352-38-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3544-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3544-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1300-47-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1352-52-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/3544-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3544-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3544-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1300-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2356-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3544-60-0x0000000000400000-0x0000000000414000-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	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe
Token: SeDebugPrivilege	2356	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
1352	csrsll.exe
2356	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 708 wrote to memory of 1300	708	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	85
PID 1300 wrote to memory of 4588	1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	86
PID 1300 wrote to memory of 4588	1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	86
PID 1300 wrote to memory of 4588	1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	86
PID 4588 wrote to memory of 3092	4588	cmd.exe	90
PID 4588 wrote to memory of 3092	4588	cmd.exe	90
PID 4588 wrote to memory of 3092	4588	cmd.exe	90
PID 1300 wrote to memory of 1352	1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	91
PID 1300 wrote to memory of 1352	1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	91
PID 1300 wrote to memory of 1352	1300	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	91
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 2356	1352	csrsll.exe	92
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93
PID 1352 wrote to memory of 3544	1352	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
"C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:708
- C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
  "C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1300
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AFUVS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4588
  - - 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:3092
- - 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:1352
  - - 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:2356
  - - 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:3544

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\AFUVS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
049770d53f46d5bbb479383cbd6839a4

SHA1
02ea646e0bcc8920f6746a9107991c25ccb52957

SHA256
ed5073fc98cd1856b15a5a1ccf5a6354c0d45c1bd1aba4f7920ce77aa241ae7f

SHA512
eb12d2ceb96a682d2cffb554f6108eaf4da86172f2ec9e0fa3fdca22ae2d772e64e131dab3b9c9d03950f3c923cdeea2fa96a336030bfcdea6b6dc1cc7a444d7

Download Submit
memory/708-3-0x0000000002B70000-0x0000000002B71000-memory.dmp

Filesize
4KB

Download
memory/708-4-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/708-10-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/708-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1300-47-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1300-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1300-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1300-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1300-56-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1300-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-38-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1352-52-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1352-37-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2356-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3544-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3544-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3544-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3544-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3544-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3544-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads