modiloader | c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
04/11/2024, 04:34

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General

Target

c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
Size

326KB
MD5

c1009d109847889afc57cab8b5c247f8
SHA1

2c55c51cbd43ee019ed4b0aa57d3be12a3fd23f9
SHA256

c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698
SHA512

7461a1c70f199a0e457d83cd4414abc87129cab8f04d2a7c32d5cd5a8235be8c2587f437c394c1cdfbbecfbe3f1f2c70ba292bb3a59f2428799cdbab290767f9
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

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/2708-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2928	csrsll.exe
952	csrsll.exe
2708	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.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-1-5-21-2703099537-420551529-3771253338-1000\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 1212 set thread context of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 2928 set thread context of 952	2928	csrsll.exe	36
PID 2928 set thread context of 2708	2928	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1212-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2620-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1212-42-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1212-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2620-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1212-101-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1212-99-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2620-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-132-0x0000000003460000-0x00000000034B4000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-134.dat	upx
behavioral1/memory/2620-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2620-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2928-248-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2708-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2928-218-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/952-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2708-260-0x0000000000400000-0x0000000000414000-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	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.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	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe
Token: SeDebugPrivilege	952	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
2928	csrsll.exe
952	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 1212 wrote to memory of 2620	1212	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	31
PID 2620 wrote to memory of 1680	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	32
PID 2620 wrote to memory of 1680	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	32
PID 2620 wrote to memory of 1680	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	32
PID 2620 wrote to memory of 1680	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	32
PID 1680 wrote to memory of 2612	1680	cmd.exe	34
PID 1680 wrote to memory of 2612	1680	cmd.exe	34
PID 1680 wrote to memory of 2612	1680	cmd.exe	34
PID 1680 wrote to memory of 2612	1680	cmd.exe	34
PID 2620 wrote to memory of 2928	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	35
PID 2620 wrote to memory of 2928	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	35
PID 2620 wrote to memory of 2928	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	35
PID 2620 wrote to memory of 2928	2620	c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe	35
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 952	2928	csrsll.exe	36
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37
PID 2928 wrote to memory of 2708	2928	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
"C:\Users\Admin\AppData\Local\Temp\c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe
  "C:\Users\Admin\AppData\Local\Temp\c75cf40e4096631906608b9f237adeb488b6730d281af5bb3734a13a6603b698.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\QYMOA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1680
  - - 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:2612
- - 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:2928
  - - 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:952
  - - 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:2708

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\QYMOA.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
3ce786005b6f67d4b0b181e5134aadb8

SHA1
5fbfd0a30627088d2a7c1bcf5a7eb53a004dcba4

SHA256
cb2efcba23a370b7d44a6be4ca53e15b4153cc0556cd7d93232c2ad50ed18bf2

SHA512
4334a3f843222fde5332d4ccc52449a646008552c051a36acdd0573fd8d768d013d3bd2e15d5ac53aab3df27e13ce1d7101a1211d027769ea0f51cd65026f065

Download Submit
memory/952-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1212-99-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1212-101-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1212-28-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1212-40-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1212-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1212-62-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1212-80-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/1212-77-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1212-76-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1212-72-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1212-68-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1212-58-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1212-42-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1212-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1212-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1212-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1212-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1212-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2620-148-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2620-146-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2620-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-132-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2620-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-232-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2620-147-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2620-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2620-212-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2620-213-0x0000000003460000-0x00000000034B4000-memory.dmp

Filesize
336KB

Download
memory/2708-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2708-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2928-218-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2928-248-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads