modiloader | 1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c

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
15-12-2024 19:40

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General

Target

1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
Size

300KB
MD5

2a2fb0ace40e74e6f7d4b9e52cf1e935
SHA1

7e41e0375dde84b2a00817a780f31afed2cffbd6
SHA256

1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c
SHA512

2c8ee5ccf1f16cb5b85e1dfcc3e783d03b90811d61c3cb5bfd6695b816923bc2a048feba68ffcebb87beaaea3d81a0bf35cec2536282aa5907b91b7f0d3d8c64
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gq:UsxD5cwohO+O1sVG0/pZ6iPC8I

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/1596-248-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1752	csrsll.exe
1068	csrsll.exe
1596	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.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-1-5-21-3533259084-2542256011-65585152-1000\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 2380 set thread context of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 1752 set thread context of 1068	1752	csrsll.exe	36
PID 1752 set thread context of 1596	1752	csrsll.exe	37

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2840-90-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2840-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2840-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2840-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2840-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2840-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1596-238-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2840-243-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2840-237-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-247-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1596-248-0x0000000000400000-0x0000000000414000-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	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	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe
Token: SeDebugPrivilege	1068	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
1752	csrsll.exe
1068	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2380 wrote to memory of 2840	2380	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	31
PID 2840 wrote to memory of 1756	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	32
PID 2840 wrote to memory of 1756	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	32
PID 2840 wrote to memory of 1756	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	32
PID 2840 wrote to memory of 1756	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	32
PID 1756 wrote to memory of 1308	1756	cmd.exe	34
PID 1756 wrote to memory of 1308	1756	cmd.exe	34
PID 1756 wrote to memory of 1308	1756	cmd.exe	34
PID 1756 wrote to memory of 1308	1756	cmd.exe	34
PID 2840 wrote to memory of 1752	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	35
PID 2840 wrote to memory of 1752	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	35
PID 2840 wrote to memory of 1752	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	35
PID 2840 wrote to memory of 1752	2840	1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe	35
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1068	1752	csrsll.exe	36
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37
PID 1752 wrote to memory of 1596	1752	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
"C:\Users\Admin\AppData\Local\Temp\1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe
  "C:\Users\Admin\AppData\Local\Temp\1242dc36d510e68b78d4c9602cdd89ec3dbf8e76de61f41ffa62893615e50c7c.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\DYVUY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1756
  - - 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:1308
- - 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:1752
  - - 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:1068
  - - 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:1596

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DYVUY.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
27e43e834c9306d805e16088ae8b3bed

SHA1
a53e99f4ab5ad2cc13add0ecf76e25f540f7b12f

SHA256
9a11c7d4fd093dd56b9b19e2b51e7829f5cd47bcc5a3f8d7ef85f0d002824905

SHA512
f0e9b016593004a79a8956da48d1744f7c21ab0885a1cd51a878f64056fff9dbd6022984f17e23a80afc83bce1b3534c64f761d13901fea9f5d85c2d0781c896

Download Submit
memory/1068-247-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-238-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1752-168-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/1752-156-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/1752-146-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2380-87-0x0000000002360000-0x0000000002362000-memory.dmp

Filesize
8KB

Download
memory/2380-69-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download
memory/2380-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2380-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2380-15-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2380-59-0x0000000001C10000-0x0000000001C11000-memory.dmp

Filesize
4KB

Download
memory/2380-39-0x0000000001B90000-0x0000000001B91000-memory.dmp

Filesize
4KB

Download
memory/2380-27-0x0000000001B70000-0x0000000001B71000-memory.dmp

Filesize
4KB

Download
memory/2380-77-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/2380-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2840-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-94-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-243-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-237-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-88-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads