modiloader | 9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d

Analysis

max time kernel
118s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 05:49

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General

Target

9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe
Size

90KB
MD5

71afb0014d8d22f051d401828f17df55
SHA1

d39455b1dae395d6ce20a3e79db346f561ced606
SHA256

9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d
SHA512

061087dfde0dbf14450a25020df7e55a3a8aa84e81c464e066fb1cfbac4282f201fad720abddcf374b1e9d41a5831bb28077b3e625970e2204a0c4bb9bae9cec
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDA:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3W

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/1648-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1648-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1648-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1648-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe

Executes dropped EXE 3 IoCs

pid	Process
2936	csrsll.exe
8	csrsll.exe
1648	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 116 set thread context of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 2936 set thread context of 8	2936	csrsll.exe	97
PID 2936 set thread context of 1648	2936	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/116-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/116-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4908-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4908-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/116-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4908-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c86-29.dat	upx
behavioral2/memory/4908-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2936-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2936-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1648-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1648-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1648-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1648-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1648-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2936-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4908-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/8-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1648-62-0x0000000000400000-0x0000000000414000-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	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.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	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe
Token: SeDebugPrivilege	8	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe
4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe
2936	csrsll.exe
8	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 116 wrote to memory of 4908	116	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	83
PID 4908 wrote to memory of 5084	4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	84
PID 4908 wrote to memory of 5084	4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	84
PID 4908 wrote to memory of 5084	4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	84
PID 5084 wrote to memory of 3344	5084	cmd.exe	88
PID 5084 wrote to memory of 3344	5084	cmd.exe	88
PID 5084 wrote to memory of 3344	5084	cmd.exe	88
PID 4908 wrote to memory of 2936	4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	89
PID 4908 wrote to memory of 2936	4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	89
PID 4908 wrote to memory of 2936	4908	9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe	89
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 8	2936	csrsll.exe	97
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98
PID 2936 wrote to memory of 1648	2936	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe
"C:\Users\Admin\AppData\Local\Temp\9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:116
- C:\Users\Admin\AppData\Local\Temp\9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe
  "C:\Users\Admin\AppData\Local\Temp\9964178bebe9759c72775046af9b712b614b9b095c2a83fe159da815a891366d.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FKCTK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5084
  - - 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:3344
- - 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:2936
  - - 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:8
  - - 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:1648

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\FKCTK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5f0c2ba60728b122b3032a8d60864a24

SHA1
c01ec4d391b301498e22803aca4fb896a7521a9d

SHA256
9c405ae4d36260880ac7520786c3c1cb45d615439fe44a499e6e5bfe4d06b0bc

SHA512
2b5e9b529fa0312c1f2ff399aabc179913bf508dccb2c6c1253330c23c7aa9c099ef4d4465915dd1ef8b0685e7080e0de7eb0d563cf30558f42c3667a768dea7

Download Submit
memory/8-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/116-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/116-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/116-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/116-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/116-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/116-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1648-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1648-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1648-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1648-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1648-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4908-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4908-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4908-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4908-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4908-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads