modiloader | 1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c

Analysis

max time kernel
118s
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
25-12-2024 20:04

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General

Target

1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
Size

90KB
MD5

874ff70f0e71c6c187b5d1b10400daad
SHA1

5907977c64993430ba94426ec99cddf1dbc5b9d0
SHA256

1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c
SHA512

cf8009e1a16000b8f0ad89764e26363fedd3ffe6291f4cd955a681473b81c4467f75b0e6f1af7ad48f31b356f95cf7ab1a3035e4c858342d161ecb353afdcf57
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl: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 4 IoCs

resource	yara_rule
behavioral2/memory/764-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/764-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/764-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/764-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe

Executes dropped EXE 3 IoCs

pid	Process
1412	csrsll.exe
4152	csrsll.exe
764	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-1-5-21-2045521122-590294423-3465680274-1000\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 4196 set thread context of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 1412 set thread context of 4152	1412	csrsll.exe	101
PID 1412 set thread context of 764	1412	csrsll.exe	102

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4196-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4196-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/524-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/524-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/524-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4196-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb6-29.dat	upx
behavioral2/memory/524-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1412-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/764-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/764-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/764-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/764-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/764-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1412-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/524-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4152-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/764-63-0x0000000000400000-0x0000000000414000-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	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.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	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe
Token: SeDebugPrivilege	4152	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
1412	csrsll.exe
4152	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 4196 wrote to memory of 524	4196	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	89
PID 524 wrote to memory of 3084	524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	90
PID 524 wrote to memory of 3084	524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	90
PID 524 wrote to memory of 3084	524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	90
PID 3084 wrote to memory of 660	3084	cmd.exe	94
PID 3084 wrote to memory of 660	3084	cmd.exe	94
PID 3084 wrote to memory of 660	3084	cmd.exe	94
PID 524 wrote to memory of 1412	524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	95
PID 524 wrote to memory of 1412	524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	95
PID 524 wrote to memory of 1412	524	1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe	95
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 4152	1412	csrsll.exe	101
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102
PID 1412 wrote to memory of 764	1412	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
"C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe
  "C:\Users\Admin\AppData\Local\Temp\1c54f34726ee7577b5fab246562879e94b93d268f0eac4dd9ff1c8153a8a661c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XTUHN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3084
  - - 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:660
- - 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:1412
  - - 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:4152
  - - 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:764

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1c3e7a6e0dc8bfb800031f1fb5e82993

SHA1
b584f98309192d68016a80037739f951d08e40b9

SHA256
01bd296a266428bed21bef0d757d37e535fe57f1ef21e869414a11b300510742

SHA512
763a041a07a0f6038db27cb0c5f24a5f193a9459af3d1b9a37ea4934d8ba1a56af0413957b043abe2a4ded02436098873e46055a7a40c007105a4d3725af71cc

Download Submit
memory/524-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/524-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/524-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/524-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/524-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/764-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/764-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/764-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/764-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/764-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/764-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1412-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1412-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4196-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4196-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4196-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4196-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4196-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4196-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads