modiloader | 87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/12/2024, 23:09

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General

Target

87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
Size

90KB
MD5

4d1723e551cf1501a45b0b742304b5ef
SHA1

9b518926a288b6ad5efa4c1ed0f50c6fcedcbbee
SHA256

87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2
SHA512

792439367ac84f762289c5e2efe38b24d51d4a92cc7daecd45f3a5b492f0aa51a0cfeb0f1a7c957ac1013d0a3da0a552a359b99c352dae860d86478ab5533aa5
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDZ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3P

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/2280-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1844	csrsll.exe
1224	csrsll.exe
2280	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.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 3004 set thread context of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 1844 set thread context of 1224	1844	csrsll.exe	36
PID 1844 set thread context of 2280	1844	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3004-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3004-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3004-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3004-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000016d36-132.dat	upx
behavioral1/memory/2636-146-0x00000000030F0000-0x0000000003143000-memory.dmp	upx
behavioral1/memory/2636-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1844-227-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2280-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1844-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1224-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2280-260-0x0000000000400000-0x0000000000414000-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	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.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	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
3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
1844	csrsll.exe
1224	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 3004 wrote to memory of 2636	3004	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	30
PID 2636 wrote to memory of 2116	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	32
PID 2636 wrote to memory of 2116	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	32
PID 2636 wrote to memory of 2116	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	32
PID 2636 wrote to memory of 2116	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	32
PID 2116 wrote to memory of 2500	2116	cmd.exe	34
PID 2116 wrote to memory of 2500	2116	cmd.exe	34
PID 2116 wrote to memory of 2500	2116	cmd.exe	34
PID 2116 wrote to memory of 2500	2116	cmd.exe	34
PID 2636 wrote to memory of 1844	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	35
PID 2636 wrote to memory of 1844	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	35
PID 2636 wrote to memory of 1844	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	35
PID 2636 wrote to memory of 1844	2636	87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe	35
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 1224	1844	csrsll.exe	36
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37
PID 1844 wrote to memory of 2280	1844	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
"C:\Users\Admin\AppData\Local\Temp\87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe
  "C:\Users\Admin\AppData\Local\Temp\87c34b745d0bc6093dbbb7e05f2502e5bb01e93bb37df9a078421667ba4918b2.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\POAJA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2116
  - - 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:2500
- - 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:1844
  - - 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:2280

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\POAJA.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0f568307624dd353485ae223fd311146

SHA1
dfbfa3fa5c1aaeb9eb141e6c25d8863c5523c2d6

SHA256
f6f7a91967dad266733b4e186d7da3cbf122cc38e588d4f42d3c1a39ca1c85c6

SHA512
67f2b94f22a3415782a6da5db3b56fc0d1466036fc09c03ad5b8d3f51bc98f7de2228660d46f2cd9896db37e1d43a13bb8952404155aa91d4544256b27acd5ee

Download Submit
memory/1224-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1844-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1844-227-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-165-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1844-176-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2280-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2280-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2636-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-148-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2636-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-245-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2636-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-226-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2636-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-146-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2636-147-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2636-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3004-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3004-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3004-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/3004-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3004-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/3004-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/3004-13-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/3004-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/3004-41-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/3004-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3004-16-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/3004-99-0x0000000002830000-0x0000000002883000-memory.dmp

Filesize
332KB

Download
memory/3004-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3004-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads