modiloader | 1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cf

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 20:49

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General

Target

1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
Size

90KB
MD5

d7c99412461ec9b5982f3dac5f05b2f0
SHA1

2a78ab6f8b7aa8e0478e0ae56fed591129696e26
SHA256

1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cf
SHA512

51c9bfb57a91efb2afe555cc18d3a2345871f812b46c1af6fbb2bd18662dc6aa209ac4dddb72a33e4bd92e5b75df36719075b64b38bb4eb4cd1842f28e16a599
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDR:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3H

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/1748-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2776	csrsll.exe
600	csrsll.exe
1748	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.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-1-5-21-3551809350-4263495960-1443967649-1000\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 1488 set thread context of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 2776 set thread context of 600	2776	csrsll.exe	36
PID 2776 set thread context of 1748	2776	csrsll.exe	37

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1488-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-108-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2556-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2556-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2556-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2556-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2556-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2556-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-133.dat	upx
behavioral1/memory/2556-135-0x0000000003350000-0x00000000033A3000-memory.dmp	upx
behavioral1/memory/2556-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2776-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1748-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2776-174-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2556-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/600-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1748-260-0x0000000000400000-0x0000000000414000-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	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe
Token: SeDebugPrivilege	600	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
2776	csrsll.exe
600	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 1488 wrote to memory of 2556	1488	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	31
PID 2556 wrote to memory of 2644	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	32
PID 2556 wrote to memory of 2644	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	32
PID 2556 wrote to memory of 2644	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	32
PID 2556 wrote to memory of 2644	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	32
PID 2644 wrote to memory of 2364	2644	cmd.exe	34
PID 2644 wrote to memory of 2364	2644	cmd.exe	34
PID 2644 wrote to memory of 2364	2644	cmd.exe	34
PID 2644 wrote to memory of 2364	2644	cmd.exe	34
PID 2556 wrote to memory of 2776	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	35
PID 2556 wrote to memory of 2776	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	35
PID 2556 wrote to memory of 2776	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	35
PID 2556 wrote to memory of 2776	2556	1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe	35
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 600	2776	csrsll.exe	36
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37
PID 2776 wrote to memory of 1748	2776	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
"C:\Users\Admin\AppData\Local\Temp\1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Users\Admin\AppData\Local\Temp\1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe
  "C:\Users\Admin\AppData\Local\Temp\1ed2157e2be94c06af9a28351b57d61c5238e45e16b767a34ac026194763d9cfN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\KXYBL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - 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:2364
- - 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:2776
  - - 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:600
  - - 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:1748

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\KXYBL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
389394e09f278df705e9fc73e5eddbaa

SHA1
8a7e29d6e4fe8cfb04ac9381598dc4e71e426423

SHA256
126938807418cc6baa2563ab9586b27e4c8fed9a6d420e81541cff5805c3b64d

SHA512
c9553ef665fcafcdf677870fa114c0b4df7d432673dafa8ae42f05c6a9457b2b6a37f56321e0fec7e9ab0a65170a157abca8ff632c66ab2f8cc4c67db4110b77

Download Submit
memory/600-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-80-0x0000000000570000-0x0000000000572000-memory.dmp

Filesize
8KB

Download
memory/1488-29-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1488-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-41-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1488-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1488-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-15-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1488-71-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/1488-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1488-108-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1488-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1488-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1748-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1748-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2556-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2556-150-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/2556-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-135-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/2556-148-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/2556-173-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/2556-149-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/2556-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-245-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/2776-167-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2776-174-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2776-180-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2776-157-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads