modiloader | 81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498

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
17-12-2024 05:48

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General

Target

81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
Size

90KB
MD5

b49d87e876ce9b1281a73d0b450b26d1
SHA1

6312d678d0b590bc05a4f7eae67a22f2969c2dc7
SHA256

81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498
SHA512

de98122eb65f4d2ddf67907191f27d1128d6fb02dc2c9abc80342b4393737aabfa35447974c571f1718de3dee953fa182a0320a32df37eea74273a4da85447cb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDx:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE33

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/208-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/208-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/208-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/208-60-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe

Executes dropped EXE 3 IoCs

pid	Process
1600	csrsll.exe
3612	csrsll.exe
208	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4192 set thread context of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 1600 set thread context of 3612	1600	csrsll.exe	90
PID 1600 set thread context of 208	1600	csrsll.exe	91

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4192-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4192-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4060-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4060-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4192-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c97-29.dat	upx
behavioral2/memory/1600-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1600-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4060-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/208-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/208-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1600-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/208-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4060-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/208-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/208-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3612-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/208-60-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe
Token: SeDebugPrivilege	3612	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
1600	csrsll.exe
3612	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4192 wrote to memory of 4060	4192	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	83
PID 4060 wrote to memory of 852	4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	84
PID 4060 wrote to memory of 852	4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	84
PID 4060 wrote to memory of 852	4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	84
PID 852 wrote to memory of 2504	852	cmd.exe	88
PID 852 wrote to memory of 2504	852	cmd.exe	88
PID 852 wrote to memory of 2504	852	cmd.exe	88
PID 4060 wrote to memory of 1600	4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	89
PID 4060 wrote to memory of 1600	4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	89
PID 4060 wrote to memory of 1600	4060	81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe	89
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 3612	1600	csrsll.exe	90
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91
PID 1600 wrote to memory of 208	1600	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
"C:\Users\Admin\AppData\Local\Temp\81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Users\Admin\AppData\Local\Temp\81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.exe
  "C:\Users\Admin\AppData\Local\Temp\81d12309c42b65672ede4797cd1213eb46ad2addea33f5579af3065614b31498.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\SAFCR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:852
  - - 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:2504
- - 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:1600
  - - 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:3612
  - - 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:208

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\SAFCR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c92bb8d54020cef0a0821678408e6308

SHA1
b88bd7a118c412f8ec94023451d6c78145837b82

SHA256
1855329d03edb9e81d1ea93a7921b4a37da37f9984f6230ff0685a6941891947

SHA512
99d940ac075a6bfa481441d15e25f7acd7f440b57b02b877d2538a3f34d0e846da1e51176194b1f5a6d2d5e488af262a159b42987f57465911ef080083074fa0

Download Submit
memory/208-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/208-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/208-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/208-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/208-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/208-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3612-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4060-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

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

Filesize
44KB

Download
memory/4060-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

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

Filesize
44KB

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

Filesize
44KB

Download
memory/4192-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4192-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4192-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4192-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4192-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4192-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads