modiloader | c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 05:24

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General

Target

c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
Size

90KB
MD5

a334e7583fdd5cfac28b791258cf80cb
SHA1

de46468dc55b6740cb93089cb14c5da7f7685b9e
SHA256

c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52
SHA512

915c461d49b277603cdf0c79215bc43710c69c3ca5edb7858b360d3095ad82c7d2206b8889b1a96a73b07a0c8b5580677fdd62f82fbf092bffb5869d687a1e3f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3L

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 2 IoCs

resource	yara_rule
behavioral1/memory/2128-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/2128-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1872	csrsll.exe
956	csrsll.exe
2128	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.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-1-5-21-312935884-697965778-3955649944-1000\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 3044 set thread context of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 1872 set thread context of 956	1872	csrsll.exe	36
PID 1872 set thread context of 2128	1872	csrsll.exe	37

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3044-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3044-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3044-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2616-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2616-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2616-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2616-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2616-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2616-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3044-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-129.dat	upx
behavioral1/memory/2616-131-0x00000000034B0000-0x0000000003503000-memory.dmp	upx
behavioral1/memory/2616-148-0x00000000034B0000-0x0000000003503000-memory.dmp	upx
behavioral1/memory/1872-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2616-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2616-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2128-257-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/956-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1872-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1872-221-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/956-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2128-259-0x0000000000400000-0x0000000000414000-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	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
1872	csrsll.exe
956	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 3044 wrote to memory of 2616	3044	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	31
PID 2616 wrote to memory of 2440	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	32
PID 2616 wrote to memory of 2440	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	32
PID 2616 wrote to memory of 2440	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	32
PID 2616 wrote to memory of 2440	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	32
PID 2440 wrote to memory of 2664	2440	cmd.exe	34
PID 2440 wrote to memory of 2664	2440	cmd.exe	34
PID 2440 wrote to memory of 2664	2440	cmd.exe	34
PID 2440 wrote to memory of 2664	2440	cmd.exe	34
PID 2616 wrote to memory of 1872	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	35
PID 2616 wrote to memory of 1872	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	35
PID 2616 wrote to memory of 1872	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	35
PID 2616 wrote to memory of 1872	2616	c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe	35
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 956	1872	csrsll.exe	36
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37
PID 1872 wrote to memory of 2128	1872	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
"C:\Users\Admin\AppData\Local\Temp\c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe
  "C:\Users\Admin\AppData\Local\Temp\c75d34bd328ecb4ebdc138426416666129d2483a5820f4ee4a399fefc22f0b52.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2616
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\ETTGI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2440
  - - 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:2664
- - 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:1872
  - - 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:956
  - - 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:2128

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\ETTGI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
661d3d8510165d294644c46624237c4a

SHA1
70bbda510560b9178f71d286a4d2c36af658177b

SHA256
de53a4b861f5e71a61cad9145c477ab7207016c80a845ac5723dba5bde8c0df1

SHA512
4339b0d4af416692b90bfd4ccc6e2408f8d6773e6cb81ccb95fe51ae8407e9edd9100df0fc1d567107fa278bdc6d82551225ee3c778b75d93a79b8591afdd618

Download Submit
memory/956-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/956-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1872-155-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1872-221-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1872-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1872-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1872-165-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1872-176-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2128-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2616-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-217-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-212-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-140-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-131-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-148-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-151-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-150-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2616-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3044-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/3044-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3044-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3044-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3044-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3044-79-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/3044-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/3044-41-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/3044-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/3044-71-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/3044-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/3044-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3044-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads