modiloader | 3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301

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
07-12-2024 21:49

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General

Target

3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
Size

90KB
MD5

1556af5adf453ab15c6f91156c17f9df
SHA1

c794cefe2e64f1018258fcf38d1d33e5edbe8b4d
SHA256

3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301
SHA512

ee664a7a13f9ba970bfa0f692a47140fd375c743d0a73bab6b371e289f1068b16fb7dd717f81a66421888cf4c3c972f4f58969cd728df46abe5b36e6083b454c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDA:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3C

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/1788-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1788-256-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2368	csrsll.exe
692	csrsll.exe
1788	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.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-1-5-21-1846800975-3917212583-2893086201-1000\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 2552 set thread context of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2368 set thread context of 692	2368	csrsll.exe	36
PID 2368 set thread context of 1788	2368	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2552-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2552-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2752-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0004000000013d08-129.dat	upx
behavioral1/memory/2752-131-0x0000000003490000-0x00000000034E3000-memory.dmp	upx
behavioral1/memory/2368-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2368-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2368-247-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2752-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1788-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/692-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/692-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1788-256-0x0000000000400000-0x0000000000414000-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	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
2368	csrsll.exe
692	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2552 wrote to memory of 2752	2552	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	31
PID 2752 wrote to memory of 556	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	32
PID 2752 wrote to memory of 556	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	32
PID 2752 wrote to memory of 556	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	32
PID 2752 wrote to memory of 556	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	32
PID 556 wrote to memory of 2860	556	cmd.exe	34
PID 556 wrote to memory of 2860	556	cmd.exe	34
PID 556 wrote to memory of 2860	556	cmd.exe	34
PID 556 wrote to memory of 2860	556	cmd.exe	34
PID 2752 wrote to memory of 2368	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	35
PID 2752 wrote to memory of 2368	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	35
PID 2752 wrote to memory of 2368	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	35
PID 2752 wrote to memory of 2368	2752	3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe	35
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 692	2368	csrsll.exe	36
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37
PID 2368 wrote to memory of 1788	2368	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
"C:\Users\Admin\AppData\Local\Temp\3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Users\Admin\AppData\Local\Temp\3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe
  "C:\Users\Admin\AppData\Local\Temp\3d641c1f4cd6d02cbced4e653fccb3293ca331d1d5d62b9267b3efdb8552b301.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\EJYXF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:556
  - - 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:2860
- - 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:2368
  - - 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:692
  - - 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:1788

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\EJYXF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
241da07ebec1c7f29a3157016d66e4d4

SHA1
f46e217a7663d5e5ab58879f3afa6478e0c08eaf

SHA256
30ef8823d42da39f778df40274af17744dc2e5e712fa60bf866eb9bb7158e4fc

SHA512
f68f0742b008db0ca258b348293678608a3fde0ed6df62ae7fa26df7c974eb88b7b1d015e200dc86e717e962b669e9ded7060db28d12cedd7f492b2ccced6eff

Download Submit
memory/692-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/692-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1788-256-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2368-175-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/2368-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2368-154-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2368-164-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2368-247-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2552-61-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2552-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2552-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2552-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2552-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2552-71-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2552-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2552-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2552-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2552-79-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2552-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2552-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2552-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2752-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-146-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2752-145-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2752-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-147-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2752-131-0x0000000003490000-0x00000000034E3000-memory.dmp

Filesize
332KB

Download
memory/2752-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2752-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads