modiloader | 0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198c

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 20:36

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General

Target

0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
Size

300KB
MD5

9e71758bf28bddfd59ed34843f0d6740
SHA1

d934704c3f4137751938ef9a8de8bbebfcbb7573
SHA256

0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198c
SHA512

43acbe6659daf882962fce7b730a1e378efb00f8c603bd8370b998c68e17088fefc01c804aa429292ed56736ed8db878db829e0848e59469f535c8b72c61232f
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38GZ:UsxD5cwohO+O1sVG0/pZ6iPC8n

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/1628-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2884	csrsll.exe
1544	csrsll.exe
1628	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.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-1-5-21-3692679935-4019334568-335155002-1000\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 2492 set thread context of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2884 set thread context of 1544	2884	csrsll.exe	35
PID 2884 set thread context of 1628	2884	csrsll.exe	36

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2176-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2176-147-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1628-242-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2176-246-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1544-251-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1628-254-0x0000000000400000-0x0000000000414000-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	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.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 63 IoCs

description	pid	Process
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe
Token: SeDebugPrivilege	1544	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
2884	csrsll.exe
1544	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2492 wrote to memory of 2176	2492	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	30
PID 2176 wrote to memory of 3008	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	31
PID 2176 wrote to memory of 3008	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	31
PID 2176 wrote to memory of 3008	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	31
PID 2176 wrote to memory of 3008	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	31
PID 3008 wrote to memory of 1272	3008	cmd.exe	33
PID 3008 wrote to memory of 1272	3008	cmd.exe	33
PID 3008 wrote to memory of 1272	3008	cmd.exe	33
PID 3008 wrote to memory of 1272	3008	cmd.exe	33
PID 2176 wrote to memory of 2884	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	34
PID 2176 wrote to memory of 2884	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	34
PID 2176 wrote to memory of 2884	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	34
PID 2176 wrote to memory of 2884	2176	0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe	34
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1544	2884	csrsll.exe	35
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36
PID 2884 wrote to memory of 1628	2884	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
"C:\Users\Admin\AppData\Local\Temp\0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Local\Temp\0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe
  "C:\Users\Admin\AppData\Local\Temp\0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198cN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\ULJNI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - 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:1272
- - 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:2884
  - - 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:1544
  - - 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:1628

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\ULJNI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
9e71758bf28bddfd59ed34843f0d6740

SHA1
d934704c3f4137751938ef9a8de8bbebfcbb7573

SHA256
0cf66a1b4d0a0e6280f63c9e6e7530c7419a14a8de5dda8db367d4fde24b198c

SHA512
43acbe6659daf882962fce7b730a1e378efb00f8c603bd8370b998c68e17088fefc01c804aa429292ed56736ed8db878db829e0848e59469f535c8b72c61232f

Download Submit
memory/1544-251-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1628-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1628-242-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2176-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-246-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-147-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2176-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2176-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2492-27-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2492-90-0x00000000003F0000-0x00000000003F2000-memory.dmp

Filesize
8KB

Download
memory/2492-79-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/2492-59-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2492-88-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2492-39-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2492-69-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2492-89-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2492-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2492-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2492-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2492-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2884-151-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2884-173-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2884-161-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads