modiloader | 8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 01:18

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General

Target

8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe
Size

90KB
MD5

c25cef5c8a65ef41bb276e24d0a4c0e0
SHA1

e6e2b08d0b5d4605b2a4ed5da2e403ba53af6f56
SHA256

8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511
SHA512

f1c125ebb39fe43e3fb0c9a05a51430b60175d0843d52d4df74b8658f41731943c4ce6763558e9d3ae622258e4e342914a32e7b870cc7ca5386930b18ef40bf7
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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/3412-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3412-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3412-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3412-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe

Executes dropped EXE 3 IoCs

pid	Process
2744	csrsll.exe
2692	csrsll.exe
3412	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 3996 set thread context of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 2744 set thread context of 2692	2744	csrsll.exe	95
PID 2744 set thread context of 3412	2744	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3996-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3996-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4060-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3996-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b88-29.dat	upx
behavioral2/memory/4060-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2744-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3412-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-48-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3412-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4060-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3412-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3412-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3412-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2692-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3412-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.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

description	pid	Process
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe
Token: SeDebugPrivilege	2692	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe
4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe
2744	csrsll.exe
2692	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 3996 wrote to memory of 4060	3996	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	82
PID 4060 wrote to memory of 1480	4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	83
PID 4060 wrote to memory of 1480	4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	83
PID 4060 wrote to memory of 1480	4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	83
PID 1480 wrote to memory of 1180	1480	cmd.exe	86
PID 1480 wrote to memory of 1180	1480	cmd.exe	86
PID 1480 wrote to memory of 1180	1480	cmd.exe	86
PID 4060 wrote to memory of 2744	4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	87
PID 4060 wrote to memory of 2744	4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	87
PID 4060 wrote to memory of 2744	4060	8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe	87
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 2692	2744	csrsll.exe	95
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96
PID 2744 wrote to memory of 3412	2744	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe
"C:\Users\Admin\AppData\Local\Temp\8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Users\Admin\AppData\Local\Temp\8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe
  "C:\Users\Admin\AppData\Local\Temp\8ac68e128f671bc4427e7dffd852cf4d53c7a7f97b4b1da415d6a4c165929511N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GRWSG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1480
  - - 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:1180
- - 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:2744
  - - 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:2692
  - - 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:3412

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fac0c0f1f5bf0bc4fc5f2b9a13657d9e

SHA1
f8ce23841ddc437e502af96e1416ce120655c467

SHA256
daa55d61edd1b8a3cbd1f00a0ef93aa5fcbbf8bfbab01d2f1294876b11673355

SHA512
2b3926410d772b364d68248b86226d090d518ffd0208825beda91c9aac97794cdb9dd402304841219956bec0bf38cbc90ff690f62de9f0c544d91063d1db7de3

Download Submit
memory/2692-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2744-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2744-48-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2744-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3412-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3412-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3412-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3412-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3412-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3412-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3996-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3996-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/3996-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3996-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/3996-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3996-5-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4060-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4060-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads