modiloader | 43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2

Analysis

max time kernel
148s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 21:54

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General

Target

43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
Size

90KB
MD5

73cbaa9be5eef904f87cd39e80ae4020
SHA1

8cb75e4599238f0d882728f949eb5970e8f8e4ea
SHA256

43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2
SHA512

81bac33cf7780453b499238dd88c231af10ef3dc101bbb931693ac6181ba53604d3ec4947d6d1b479890275074e80e1378fd66e05f1c5951b22595e3d766b194
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/772-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2912	csrsll.exe
1224	csrsll.exe
772	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.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-1-5-21-1488793075-819845221-1497111674-1000\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 2528 set thread context of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2912 set thread context of 1224	2912	csrsll.exe	36
PID 2912 set thread context of 772	2912	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2528-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2528-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2528-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2052-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2052-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2052-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2052-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2052-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2052-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2528-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a000000015d96-129.dat	upx
behavioral1/memory/2052-131-0x00000000025F0000-0x0000000002643000-memory.dmp	upx
behavioral1/memory/2912-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2052-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2912-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2912-246-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/772-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2052-250-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1224-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/772-257-0x0000000000400000-0x0000000000414000-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	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	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.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	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe
Token: SeDebugPrivilege	1224	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
2912	csrsll.exe
1224	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2528 wrote to memory of 2052	2528	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	31
PID 2052 wrote to memory of 2944	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	32
PID 2052 wrote to memory of 2944	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	32
PID 2052 wrote to memory of 2944	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	32
PID 2052 wrote to memory of 2944	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	32
PID 2944 wrote to memory of 1612	2944	cmd.exe	34
PID 2944 wrote to memory of 1612	2944	cmd.exe	34
PID 2944 wrote to memory of 1612	2944	cmd.exe	34
PID 2944 wrote to memory of 1612	2944	cmd.exe	34
PID 2052 wrote to memory of 2912	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	35
PID 2052 wrote to memory of 2912	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	35
PID 2052 wrote to memory of 2912	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	35
PID 2052 wrote to memory of 2912	2052	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe	35
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 1224	2912	csrsll.exe	36
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37
PID 2912 wrote to memory of 772	2912	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
"C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe
  "C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\TYFGD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2944
  - - 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:1612
- - 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:2912
  - - 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:1224
  - - 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:772

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\TYFGD.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
08fe2b796beef750f23a420ef5ff77d8

SHA1
7914985b7c7054bec1126818355f24c5667f8384

SHA256
8851dc57a682a66bb8d2ba83accb191b821499b2f432f6460383d340a0225e27

SHA512
0a89e9ede4865bdbd40f6f385c0f25208e4d10533258e3d8c3f8fed7391857d275a913c6c89e92e7f6c11bd161fdcecf8552805755b3e5ae7343030638eb54de

Download Submit
memory/772-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/772-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1224-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-145-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2052-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-131-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2052-144-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2052-209-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2052-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-210-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2052-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2052-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2052-146-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2052-250-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2528-29-0x0000000001B80000-0x0000000001B81000-memory.dmp

Filesize
4KB

Download
memory/2528-71-0x0000000001C40000-0x0000000001C41000-memory.dmp

Filesize
4KB

Download
memory/2528-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-61-0x0000000001C20000-0x0000000001C21000-memory.dmp

Filesize
4KB

Download
memory/2528-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2528-3-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2528-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-15-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2528-5-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2528-79-0x0000000001C60000-0x0000000001C62000-memory.dmp

Filesize
8KB

Download
memory/2528-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-41-0x0000000001BA0000-0x0000000001BA1000-memory.dmp

Filesize
4KB

Download
memory/2912-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2912-246-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2912-175-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2912-164-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2912-154-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2912-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads