modiloader | f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 23:04

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General

Target

f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
Size

94KB
MD5

f4b40c66306d5b2797320f886a129942
SHA1

1d08374302dbbbb1f87e128a040d272b15e0f254
SHA256

f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5
SHA512

ebd8370bb997c6e3b92fa0b0afd6265652b791e9d998d15cb2376f4a7c0616f9401bf16a872a34f8304b8326c382c906ecf186cae1686ac6b9ec709cd170dfd7
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/v:/pdyLALwACPmV3NYaYLiwIt3raA5BRfi

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 1 IoCs

resource	yara_rule
behavioral1/memory/48440-147866-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
4436	csrsll.exe
249812	csrsll.exe
48440	csrsll.exe

Loads dropped DLL 7 IoCs

pid	Process
4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4436	csrsll.exe
4436	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-1-5-21-3063565911-2056067323-3330884624-1000\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 2696 set thread context of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 4436 set thread context of 249812	4436	csrsll.exe	36
PID 4436 set thread context of 48440	4436	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2696-168-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/4088-73930-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/4088-73929-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2696-73928-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/4088-73926-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/4088-73922-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/4088-73920-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2696-73917-0x00000000027A0000-0x00000000027F6000-memory.dmp	upx
behavioral1/memory/2696-73662-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-73955.dat	upx
behavioral1/memory/4088-73971-0x00000000032D0000-0x0000000003326000-memory.dmp	upx
behavioral1/memory/4088-73966-0x00000000032D0000-0x0000000003326000-memory.dmp	upx
behavioral1/memory/4436-73976-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/4088-147820-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/4436-147854-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/48440-147852-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/4436-147857-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/4088-147862-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/249812-147865-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/48440-147866-0x0000000000400000-0x0000000000414000-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	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 61 IoCs

description	pid	Process
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe
Token: SeDebugPrivilege	249812	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
4436	csrsll.exe
249812	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 2696 wrote to memory of 4088	2696	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	31
PID 4088 wrote to memory of 4012	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	32
PID 4088 wrote to memory of 4012	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	32
PID 4088 wrote to memory of 4012	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	32
PID 4088 wrote to memory of 4012	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	32
PID 4012 wrote to memory of 3988	4012	cmd.exe	34
PID 4012 wrote to memory of 3988	4012	cmd.exe	34
PID 4012 wrote to memory of 3988	4012	cmd.exe	34
PID 4012 wrote to memory of 3988	4012	cmd.exe	34
PID 4088 wrote to memory of 4436	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	35
PID 4088 wrote to memory of 4436	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	35
PID 4088 wrote to memory of 4436	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	35
PID 4088 wrote to memory of 4436	4088	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	35
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 249812	4436	csrsll.exe	36
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37
PID 4436 wrote to memory of 48440	4436	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
"C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
  "C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4088
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\TLAUR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4012
  - - 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:3988
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4436
  - - 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:249812
  - - 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:48440

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

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\TLAUR.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
d47e929e6e3d6c2885143f23bff6b867

SHA1
ff3db023974cd30a92934fca50b79410a642e6b9

SHA256
0953f4dbcde99028c5e6fbcce9688189c1a981300bc07eb146a18106bbfecc2c

SHA512
2be0d03beca043400fceb921a4e9d352bf12edf8c4ad530381e131a88cc0dd2c776c7ca439b41b454120e4c36212ca1ea4d02bee86a1d9b2fc67cb99219abd8f

Download Submit
memory/2696-73917-0x00000000027A0000-0x00000000027F6000-memory.dmp

Filesize
344KB

Download
memory/2696-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2696-13-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2696-168-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2696-73928-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2696-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2696-73662-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4088-73926-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-147851-0x00000000032D0000-0x0000000003326000-memory.dmp

Filesize
344KB

Download
memory/4088-73918-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-73922-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-73924-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/4088-73929-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-73930-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-73973-0x00000000032D0000-0x0000000003326000-memory.dmp

Filesize
344KB

Download
memory/4088-73972-0x00000000032D0000-0x0000000003326000-memory.dmp

Filesize
344KB

Download
memory/4088-73971-0x00000000032D0000-0x0000000003326000-memory.dmp

Filesize
344KB

Download
memory/4088-73966-0x00000000032D0000-0x0000000003326000-memory.dmp

Filesize
344KB

Download
memory/4088-147862-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-147820-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-147853-0x00000000032D0000-0x0000000003326000-memory.dmp

Filesize
344KB

Download
memory/4088-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4436-147854-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4436-147857-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4436-73976-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/48440-147852-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/48440-147866-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/249812-147865-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads