modiloader | 4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31

Analysis

max time kernel
150s
max time network
32s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 21:22

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General

Target

4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
Size

90KB
MD5

ac72e621104fb27fa4ecec590c4472d8
SHA1

d63d139554f0bf020fe906b31b539a408a66ed92
SHA256

4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31
SHA512

dc7c7ed5f1145ba529f39ffe058d1fa8d8d30a0e844d534afd006fd2d52acf060cfd4135012d26bc4836e34515c54f195987fb5076923673157b845c14c1d7bb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDt:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3r

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/1508-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1876	csrsll.exe
1120	csrsll.exe
1508	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.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 2100 set thread context of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 1876 set thread context of 1120	1876	csrsll.exe	35
PID 1876 set thread context of 1508	1876	csrsll.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2100-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2100-28-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2100-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2100-108-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c0000000195c5-133.dat	upx
behavioral1/memory/2740-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1876-154-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1876-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1508-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1876-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1120-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1508-260-0x0000000000400000-0x0000000000414000-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	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	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe
Token: SeDebugPrivilege	1120	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
1876	csrsll.exe
1120	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2100 wrote to memory of 2740	2100	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	30
PID 2740 wrote to memory of 3040	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	31
PID 2740 wrote to memory of 3040	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	31
PID 2740 wrote to memory of 3040	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	31
PID 2740 wrote to memory of 3040	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	31
PID 3040 wrote to memory of 3060	3040	cmd.exe	33
PID 3040 wrote to memory of 3060	3040	cmd.exe	33
PID 3040 wrote to memory of 3060	3040	cmd.exe	33
PID 3040 wrote to memory of 3060	3040	cmd.exe	33
PID 2740 wrote to memory of 1876	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	34
PID 2740 wrote to memory of 1876	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	34
PID 2740 wrote to memory of 1876	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	34
PID 2740 wrote to memory of 1876	2740	4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe	34
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1120	1876	csrsll.exe	35
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36
PID 1876 wrote to memory of 1508	1876	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
"C:\Users\Admin\AppData\Local\Temp\4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe
  "C:\Users\Admin\AppData\Local\Temp\4a9f0a9937ff607816312f3805ce357cacd1c37c12d21d01184192149c832c31.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BPLIX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3040
  - - 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:3060
- - 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:1876
  - - 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:1120
  - - 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:1508

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\BPLIX.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
74d83745fdbbd2d1df8a935b85206006

SHA1
f811be0f7370d4cd411f47021c4588f1e89e28cf

SHA256
8363dfaf1d3525c00c27e35736c6b031d26efc27406b2757542f88d2d8b3c2d0

SHA512
a2809a53be5c98247e499f4878ef076b51b3d7c9ea6f3c41555d3caaa2571f0428af30344309f9038a022975898b838fe529dc7f4f6ee89fff60c8eaba8d9e28

Download Submit
memory/1120-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1508-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1508-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1876-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1876-167-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1876-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1876-178-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1876-157-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1876-154-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-31-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2100-28-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-92-0x0000000001DE0000-0x0000000001E33000-memory.dmp

Filesize
332KB

Download
memory/2100-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-5-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2100-7-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2100-108-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2100-18-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2100-73-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/2100-63-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/2100-43-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/2100-81-0x0000000000840000-0x0000000000842000-memory.dmp

Filesize
8KB

Download
memory/2100-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2740-152-0x0000000001F50000-0x0000000001FA3000-memory.dmp

Filesize
332KB

Download
memory/2740-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads