modiloader | 219caf3a903a2044fe8a187605f988017c37eea7cb609b4b9c37ac4a3564c689

Analysis

max time kernel
119s
max time network
20s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
08/09/2024, 21:44

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General

Target

5209b0eaccddf7a3c476ca50ecf37ca0N.exe
Size

90KB
MD5

5209b0eaccddf7a3c476ca50ecf37ca0
SHA1

481a5ab5d60f8b30f5bcd68f54b12d5516bbd39e
SHA256

219caf3a903a2044fe8a187605f988017c37eea7cb609b4b9c37ac4a3564c689
SHA512

aac8b69440aed5974ec4de2185e37b05fffbe87a71823204e61b9be5676371d1bb4f1694771d536e3adae81fc4436d9be0302387033826e14125064fc72c1741
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 Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/2576-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1460	csrsll.exe
1700	csrsll.exe
2576	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe
2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe
2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe
2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe
2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3024-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3024-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3024-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-147-0x0000000003460000-0x00000000034B3000-memory.dmp	upx
behavioral1/memory/2612-145-0x0000000003460000-0x00000000034B3000-memory.dmp	upx
behavioral1/files/0x00090000000120fb-143.dat	upx
behavioral1/memory/1460-151-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1460-214-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2576-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1460-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1700-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2576-262-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 3024 set thread context of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 1460 set thread context of 1700	1460	csrsll.exe	35
PID 1460 set thread context of 2576	1460	csrsll.exe	36

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	5209b0eaccddf7a3c476ca50ecf37ca0N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5209b0eaccddf7a3c476ca50ecf37ca0N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe
Token: SeDebugPrivilege	1700	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe
2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe
1460	csrsll.exe
1700	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 3024 wrote to memory of 2612	3024	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	30
PID 2612 wrote to memory of 2424	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	31
PID 2612 wrote to memory of 2424	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	31
PID 2612 wrote to memory of 2424	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	31
PID 2612 wrote to memory of 2424	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	31
PID 2424 wrote to memory of 2864	2424	cmd.exe	33
PID 2424 wrote to memory of 2864	2424	cmd.exe	33
PID 2424 wrote to memory of 2864	2424	cmd.exe	33
PID 2424 wrote to memory of 2864	2424	cmd.exe	33
PID 2612 wrote to memory of 1460	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	34
PID 2612 wrote to memory of 1460	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	34
PID 2612 wrote to memory of 1460	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	34
PID 2612 wrote to memory of 1460	2612	5209b0eaccddf7a3c476ca50ecf37ca0N.exe	34
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 1700	1460	csrsll.exe	35
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36
PID 1460 wrote to memory of 2576	1460	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\5209b0eaccddf7a3c476ca50ecf37ca0N.exe
"C:\Users\Admin\AppData\Local\Temp\5209b0eaccddf7a3c476ca50ecf37ca0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\5209b0eaccddf7a3c476ca50ecf37ca0N.exe
  "C:\Users\Admin\AppData\Local\Temp\5209b0eaccddf7a3c476ca50ecf37ca0N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\AVSRV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2424
  - - 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:2864
- - 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:1460
  - - 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:1700
  - - 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:2576

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\AVSRV.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
7d49ecbe648408a665bc794622dffd4e

SHA1
0524a98d3316129e610d9a769d75313e7235708e

SHA256
3ecc7c531a04273968dac19de8aa560d2f7c12ac644eec8b1540ad69e817b6d4

SHA512
372aa70cee3b9cb77f51b7b95133918bb4ef1eae2b3ec0df533d60f81a5c67bd4c6201461be06c41bb9b69428018347c606e8e97187ba4a7b7bf9ef31474ec34

Download Submit
memory/1460-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1460-167-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1460-178-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1460-214-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1460-157-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1460-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1700-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2576-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2576-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2612-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-146-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2612-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-234-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2612-149-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2612-148-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2612-147-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2612-232-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/2612-145-0x0000000003460000-0x00000000034B3000-memory.dmp

Filesize
332KB

Download
memory/3024-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/3024-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3024-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3024-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/3024-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/3024-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/3024-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3024-41-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/3024-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/3024-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3024-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/3024-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3024-90-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/3024-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads