modiloader | 65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2

Analysis

max time kernel
120s
max time network
121s
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 10:39

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General

Target

65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe
Size

90KB
MD5

c94bb7b796ae1b1de26b2825fe71f5d0
SHA1

68e0fd89f2b1b720e919dda2e44a2eca7c494a3b
SHA256

65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2
SHA512

b801a1043a9f4ab96d3755676245bf2174e47b31657699e26e8b4de3cb5000b1ced8be35f201b01752a5b024c4c1e9ce21ab245d9703f02ae11da3fa2613e4eb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDQ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3S

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/1900-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1900-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1900-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1900-61-0x0000000000400000-0x0000000000414000-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	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe

Executes dropped EXE 3 IoCs

pid	Process
460	csrsll.exe
5028	csrsll.exe
1900	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 1756 set thread context of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 460 set thread context of 5028	460	csrsll.exe	98
PID 460 set thread context of 1900	460	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1756-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1756-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2892-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2892-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2892-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1756-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c94-29.dat	upx
behavioral2/memory/2892-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/460-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/460-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1900-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1900-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1900-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1900-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1900-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/460-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2892-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5028-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1900-61-0x0000000000400000-0x0000000000414000-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	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.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	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe
Token: SeDebugPrivilege	5028	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe
2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe
460	csrsll.exe
5028	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 1756 wrote to memory of 2892	1756	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	84
PID 2892 wrote to memory of 4140	2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	85
PID 2892 wrote to memory of 4140	2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	85
PID 2892 wrote to memory of 4140	2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	85
PID 4140 wrote to memory of 408	4140	cmd.exe	89
PID 4140 wrote to memory of 408	4140	cmd.exe	89
PID 4140 wrote to memory of 408	4140	cmd.exe	89
PID 2892 wrote to memory of 460	2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	90
PID 2892 wrote to memory of 460	2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	90
PID 2892 wrote to memory of 460	2892	65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe	90
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 5028	460	csrsll.exe	98
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99
PID 460 wrote to memory of 1900	460	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe
"C:\Users\Admin\AppData\Local\Temp\65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe
  "C:\Users\Admin\AppData\Local\Temp\65349a702f0d7ac474c6752005c098b22737aad177add6e6bde5f6737c99c2b2N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ANERN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4140
  - - 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:408
- - 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:460
  - - 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:5028
  - - 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:1900

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\ANERN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
23fe18aef4e2d5e441b4436f3bd5e37b

SHA1
6cabca460ff73ac30a83cc56f0ce947ebc4c1377

SHA256
271d44c8c864c4ca97fc7e9f0740684ddf7a33a4a8a2f9309772c3ecd706c61c

SHA512
d3d62237a738cb114c9ed0f877605344a66ab6b47e9d0b4f9c6b347277a4b24cff4ad9da3318e4d0a7771dfd22f239d30ed2a3d56b4e1e980363db8a7d22db52

Download Submit
memory/460-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/460-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1756-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1756-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1756-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1756-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1756-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1756-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1900-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2892-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2892-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5028-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads