modiloader | 83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19/12/2024, 08:44

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General

Target

83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
Size

90KB
MD5

8408cb27871ce0e6a981125be072bad1
SHA1

65528c3a1f8be6de5fa2b73c5808d1b049ab06e8
SHA256

83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9
SHA512

8cc7cf8a85f08977223118a3fe78c2298eb0432a27afe2c31fb90b1fc9739e4f03242d5524d28adbcbe862d012b24229ff6c704560cac098851153d6837af813
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDh:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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/1216-253-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1216-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1920	csrsll.exe
324	csrsll.exe
1216	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.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 1312 set thread context of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1920 set thread context of 324	1920	csrsll.exe	36
PID 1920 set thread context of 1216	1920	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1312-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1312-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1312-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2780-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2780-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2780-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2780-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2780-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2780-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1312-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a000000016e1d-130.dat	upx
behavioral1/memory/1920-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2780-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1920-208-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2780-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1216-253-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/324-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1920-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/324-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1216-257-0x0000000000400000-0x0000000000414000-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	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.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	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe
Token: SeDebugPrivilege	324	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
1920	csrsll.exe
324	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 1312 wrote to memory of 2780	1312	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	31
PID 2780 wrote to memory of 2364	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	32
PID 2780 wrote to memory of 2364	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	32
PID 2780 wrote to memory of 2364	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	32
PID 2780 wrote to memory of 2364	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	32
PID 2364 wrote to memory of 2428	2364	cmd.exe	34
PID 2364 wrote to memory of 2428	2364	cmd.exe	34
PID 2364 wrote to memory of 2428	2364	cmd.exe	34
PID 2364 wrote to memory of 2428	2364	cmd.exe	34
PID 2780 wrote to memory of 1920	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	35
PID 2780 wrote to memory of 1920	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	35
PID 2780 wrote to memory of 1920	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	35
PID 2780 wrote to memory of 1920	2780	83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe	35
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 324	1920	csrsll.exe	36
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37
PID 1920 wrote to memory of 1216	1920	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
"C:\Users\Admin\AppData\Local\Temp\83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Users\Admin\AppData\Local\Temp\83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe
  "C:\Users\Admin\AppData\Local\Temp\83d43498f1b34ae3764f4aa077fbcb97543cc640edf11a1455a5d06d6367a2c9.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\FQVRF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2364
  - - 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:2428
- - 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:1920
  - - 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:324
  - - 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:1216

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\FQVRF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9e1baadc33d0b8a7740514b0fcb7698d

SHA1
21ec952e8acb1602a99d84d91507cc37bf6d13f3

SHA256
975bd298d2eb5a5536980c8f5f7a74b9308b599f4ac743a96dba6289718e3c5d

SHA512
95d2595a68cd10fd7e85a3bd837b5858a4314304b99798a18e54611e48dc38a721562480baf2e2e4c38c093db0ad550dcddbc20fc7867ade55a4b2f5f8c721f1

Download Submit
memory/324-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/324-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1216-253-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1216-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1312-79-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/1312-29-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1312-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1312-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1312-41-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1312-104-0x0000000000770000-0x00000000007C3000-memory.dmp

Filesize
332KB

Download
memory/1312-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1312-61-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1312-71-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1312-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1312-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1312-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1312-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1312-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1920-208-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1920-163-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1920-174-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1920-153-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2780-145-0x0000000003120000-0x0000000003173000-memory.dmp

Filesize
332KB

Download
memory/2780-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-146-0x0000000003120000-0x0000000003173000-memory.dmp

Filesize
332KB

Download
memory/2780-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-255-0x0000000003120000-0x0000000003173000-memory.dmp

Filesize
332KB

Download
memory/2780-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-251-0x0000000003120000-0x0000000003173000-memory.dmp

Filesize
332KB

Download
memory/2780-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2780-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads