modiloader | b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2024, 00:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe
Size

90KB
MD5

492ce4e2c4033e8c0b0ff5815f9dbe04
SHA1

9bf8667a93a2e1f150daaf0511a24b5faeb50606
SHA256

b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b
SHA512

a036bddcdc0643157d279070bf921cd83ba6193891a4455526ecb067915c4c1fabfb80a7f9b24f781b2845d0bf6f0b247cd28396f323a2d2f4f44fe3daad5d04
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDI:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3q

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 4 IoCs

resource	yara_rule
behavioral2/memory/3800-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3800-64-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe

Executes dropped EXE 3 IoCs

pid	Process
1296	csrsll.exe
3588	csrsll.exe
3800	csrsll.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-1-5-21-3227495264-2217614367-4027411560-1000\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 4692 set thread context of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 1296 set thread context of 3588	1296	csrsll.exe	95
PID 1296 set thread context of 3800	1296	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4692-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4692-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4080-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4080-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4080-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4692-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b75-30.dat	upx
behavioral2/memory/1296-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4080-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1296-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1296-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3800-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3800-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1296-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3800-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4080-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3588-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3800-64-0x0000000000400000-0x0000000000414000-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	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.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	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe
Token: SeDebugPrivilege	3588	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe
4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe
1296	csrsll.exe
3588	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4692 wrote to memory of 4080	4692	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	84
PID 4080 wrote to memory of 4088	4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	87
PID 4080 wrote to memory of 4088	4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	87
PID 4080 wrote to memory of 4088	4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	87
PID 4088 wrote to memory of 5080	4088	cmd.exe	90
PID 4088 wrote to memory of 5080	4088	cmd.exe	90
PID 4088 wrote to memory of 5080	4088	cmd.exe	90
PID 4080 wrote to memory of 1296	4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	91
PID 4080 wrote to memory of 1296	4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	91
PID 4080 wrote to memory of 1296	4080	b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe	91
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3588	1296	csrsll.exe	95
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96
PID 1296 wrote to memory of 3800	1296	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe
"C:\Users\Admin\AppData\Local\Temp\b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Users\Admin\AppData\Local\Temp\b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe
  "C:\Users\Admin\AppData\Local\Temp\b508ae917e3a2ad9021b3490febd3f890e1dfd2a250dcbd206188a2a67c33e2b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4080
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OMQLT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4088
  - - 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:5080
- - 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:1296
  - - 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:3588
  - - 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:3800

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\OMQLT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a9324a4b21e341a18eaa609e8de233db

SHA1
a0f5b9228b4fde6d6b9de94a6f1587bd184bb820

SHA256
78ff1316bfe3c0ab93faee409c8ce79d2c9adaf5ff740384c46707190340ac87

SHA512
2ad18368ac79dc98ebb7672799deecc06db7db31551c910954b62f916b53044e8682f0e99b79f3fe7d0c835e14cdfbc6a648291b8b12e2ff980b4643de897d19

Download Submit
memory/1296-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1296-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1296-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1296-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3588-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3800-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4080-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4080-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4080-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4080-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4080-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4692-6-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4692-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4692-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4692-4-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4692-7-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4692-3-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/4692-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads