modiloader | e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218

General

Target

e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
Size

90KB
MD5

997c3b282954b106bd90fe4ef6b7d320
SHA1

57506878249425221d9322b73572c7316dec7da6
SHA256

e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218
SHA512

c6cab19841e87bed3d4610f9626741b19a077f08a63be4a4fb3f4be73a641d25575123ad5da85178deb18f289cb57e7d73b988e692be33ab7bfc9d5fb4551e8e
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 family
modiloader

ModiLoader Second Stage 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4436-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-64-0x0000000000400000-0x0000000000414000-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

Processes:

e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

4488 csrsll.exe
4764 csrsll.exe
4436 csrsll.exe

pid	process
4488	csrsll.exe
4764	csrsll.exe
4436	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.execsrsll.exe

description	pid	process	target process
PID 3124 set thread context of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 4488 set thread context of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 set thread context of 4436	4488	csrsll.exe	csrsll.exe

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3124-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3124-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2868-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2868-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3124-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2868-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/4488-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2868-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4488-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4488-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4436-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4436-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4488-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4436-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4436-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4436-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2868-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4764-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4436-64-0x0000000000400000-0x0000000000414000-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

Processes:

csrsll.execsrsll.exee902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exee902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.execmd.exereg.execsrsll.exe

description	ioc	process
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	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exee902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.execsrsll.execsrsll.exe

pid	process
3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
4488	csrsll.exe
4764	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exee902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.execmd.execsrsll.exe

description	pid	process	target process
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 3124 wrote to memory of 2868	3124	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
PID 2868 wrote to memory of 624	2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	cmd.exe
PID 2868 wrote to memory of 624	2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	cmd.exe
PID 2868 wrote to memory of 624	2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	cmd.exe
PID 624 wrote to memory of 1220	624	cmd.exe	reg.exe
PID 624 wrote to memory of 1220	624	cmd.exe	reg.exe
PID 624 wrote to memory of 1220	624	cmd.exe	reg.exe
PID 2868 wrote to memory of 4488	2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	csrsll.exe
PID 2868 wrote to memory of 4488	2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	csrsll.exe
PID 2868 wrote to memory of 4488	2868	e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4764	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe
PID 4488 wrote to memory of 4436	4488	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
"C:\Users\Admin\AppData\Local\Temp\e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Users\Admin\AppData\Local\Temp\e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe
  "C:\Users\Admin\AppData\Local\Temp\e902231e90424fd1f4a345d8efe0206e5162385afeb4a0935d5019912ed24218N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JHSQO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:624
  - - 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:1220
- - 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:4488
  - - 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:4764
  - - 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:4436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
eca79867c9c4ecc6120214a4847d012c

SHA1
7cf5d3d3dae5a882c3080f49a09cbc4d67bbeaaf

SHA256
000019776cd0b1fdfa83f335e61610fcd6e0c2982396f8121abeeccc2065163b

SHA512
06d27776d146e756d16cd3c7444f55e2be955d33744d3c1a0a6ac08523a99663835d7811a47bde5ca87b4c96b09e51cbf43970591be249c3c8ff2bc392c9190a

Download Submit
memory/2868-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2868-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2868-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2868-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2868-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2868-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3124-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/3124-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3124-7-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/3124-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3124-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3124-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3124-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4436-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4436-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4436-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4436-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4436-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4436-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4488-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4488-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4488-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4488-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4764-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads