modiloader | c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9

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
17-11-2024 09:03

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General

Target

c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
Size

90KB
MD5

85d2952ee904971698cd6d3d3445e46f
SHA1

ed788c1ffac6da8a697fb7395f1e64aa6683f98f
SHA256

c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9
SHA512

5cbde317a105c6b8c7f629c492da43d221407328b7f1ca6a2fa9cb5bbf090308f4bbbf52455f6d27a99ce18278079aad30302e8b129db4ad409aa3f738efa9fc
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3b

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/1372-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1892	csrsll.exe
960	csrsll.exe
1372	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.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 2476 set thread context of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 1892 set thread context of 960	1892	csrsll.exe	36
PID 1892 set thread context of 1372	1892	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2476-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2476-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2476-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2772-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2772-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2772-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2476-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2772-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2772-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2772-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0008000000012101-133.dat	upx
behavioral1/memory/2772-145-0x0000000003240000-0x0000000003293000-memory.dmp	upx
behavioral1/memory/2772-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1892-229-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1892-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2772-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1372-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/960-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1372-262-0x0000000000400000-0x0000000000414000-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	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.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 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe
Token: SeDebugPrivilege	960	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
1892	csrsll.exe
960	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2476 wrote to memory of 2772	2476	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	30
PID 2772 wrote to memory of 1592	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	31
PID 2772 wrote to memory of 1592	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	31
PID 2772 wrote to memory of 1592	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	31
PID 2772 wrote to memory of 1592	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	31
PID 1592 wrote to memory of 952	1592	cmd.exe	33
PID 1592 wrote to memory of 952	1592	cmd.exe	33
PID 1592 wrote to memory of 952	1592	cmd.exe	33
PID 1592 wrote to memory of 952	1592	cmd.exe	33
PID 2772 wrote to memory of 1892	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	34
PID 2772 wrote to memory of 1892	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	34
PID 2772 wrote to memory of 1892	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	34
PID 2772 wrote to memory of 1892	2772	c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe	34
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 960	1892	csrsll.exe	36
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37
PID 1892 wrote to memory of 1372	1892	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
"C:\Users\Admin\AppData\Local\Temp\c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Users\Admin\AppData\Local\Temp\c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe
  "C:\Users\Admin\AppData\Local\Temp\c1d1be2cd6bca0d24b9e10318912f071506e5fe7e0a03947cd09953e47fd80a9.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BWTSW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1592
  - - 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:952
- - 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:1892
  - - 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:960
  - - 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:1372

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\BWTSW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3f24e0ba307e489f343bb4bbfbfb6221

SHA1
12e9a30ac6ae9aa2e5c58f3a4ec0c31251cc8c82

SHA256
28f068a98446ac098ed42e92f504f528c4a9d9a1afff8fce1bd93a5edd3d82b1

SHA512
43b80b6a51f4b6bc3e236a1bfa0c59466b6abf78537a0f55cbd32e2b20affc722a04669476ee82e236a20415ec491d81cb12b2a4e3cb819170a2a559c174617c

Download Submit
memory/960-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1372-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1892-178-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1892-229-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1892-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1892-167-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1892-157-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2476-96-0x0000000002540000-0x0000000002593000-memory.dmp

Filesize
332KB

Download
memory/2476-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2476-29-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2476-41-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/2476-61-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/2476-71-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/2476-79-0x0000000000580000-0x0000000000582000-memory.dmp

Filesize
8KB

Download
memory/2476-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2476-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2476-15-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2476-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2476-17-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2476-5-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2476-3-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2772-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-149-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2772-148-0x0000000003250000-0x00000000032A3000-memory.dmp

Filesize
332KB

Download
memory/2772-147-0x0000000003250000-0x00000000032A3000-memory.dmp

Filesize
332KB

Download
memory/2772-146-0x0000000003250000-0x00000000032A3000-memory.dmp

Filesize
332KB

Download
memory/2772-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-154-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2772-145-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2772-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-228-0x0000000003250000-0x00000000032A3000-memory.dmp

Filesize
332KB

Download
memory/2772-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-247-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2772-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads