modiloader | df65ca6360f94e0319587dce17186dcdf153974032d836bbf4ab27597def407b

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
11-11-2024 12:40

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General

Target

f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe
Size

326KB
MD5

1866efe86faa7f3cf01ea0c28298f654
SHA1

ec7c4d3a787f75bb5860bb244a4f47de6b5523a1
SHA256

df65ca6360f94e0319587dce17186dcdf153974032d836bbf4ab27597def407b
SHA512

9c78038f3a2669e178a96f1eeef3b42f226f57a0bb6e99d1bf4bd87aaa6434951316a4c765baef4008f47ec14ed1cf7831bc653e9ccf448c355821058c74bd64
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVT:csxD5cwohO+O1sVG0/pZ6iPC8y

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/3488-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3488-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3488-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3488-59-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe

Executes dropped EXE 3 IoCs

pid	Process
2204	csrsll.exe
3516	csrsll.exe
3488	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-1-5-21-493223053-2004649691-1575712786-1000\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 4788 set thread context of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 2204 set thread context of 3516	2204	csrsll.exe	103
PID 2204 set thread context of 3488	2204	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4788-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4788-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1372-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1372-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4788-11-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1372-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000f000000023a89-28.dat	upx
behavioral2/memory/1372-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2204-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2204-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3488-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3488-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3488-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3488-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2204-55-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3488-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1372-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3516-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3488-59-0x0000000000400000-0x0000000000414000-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	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.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	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe
1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe
2204	csrsll.exe
3516	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 4788 wrote to memory of 1372	4788	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	94
PID 1372 wrote to memory of 312	1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	95
PID 1372 wrote to memory of 312	1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	95
PID 1372 wrote to memory of 312	1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	95
PID 312 wrote to memory of 3276	312	cmd.exe	99
PID 312 wrote to memory of 3276	312	cmd.exe	99
PID 312 wrote to memory of 3276	312	cmd.exe	99
PID 1372 wrote to memory of 2204	1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	101
PID 1372 wrote to memory of 2204	1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	101
PID 1372 wrote to memory of 2204	1372	f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe	101
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3516	2204	csrsll.exe	103
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104
PID 2204 wrote to memory of 3488	2204	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe
"C:\Users\Admin\AppData\Local\Temp\f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Users\Admin\AppData\Local\Temp\f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe
  "C:\Users\Admin\AppData\Local\Temp\f78a45c9c6e021f1204639c0a382a49cb81e4ba8db71f89c2f6533927015232aN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1372
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HDYCP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:312
  - - 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:3276
- - 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:2204
  - - 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:3516
  - - 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:3488

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\HDYCP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
38a1b8f80a732b16a18e2123efb0a396

SHA1
c3852770f582732db86b7aabd733359c09ce62dc

SHA256
59c2d02405d7e563dcf39815a309421398457f602b16b2cbeac17ef72293d774

SHA512
c15a0c31ed6095017d68ae5b094bf7fea2f96a19a12a19782fcc8dc9182d12f24512d78b6b76628c16a86fbb57dcd390f27fdd92ca7e5a85c6c7178a16e8a171

Download Submit
memory/1372-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1372-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1372-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1372-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1372-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2204-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2204-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2204-55-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3488-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3488-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3488-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3488-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3488-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3488-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4788-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4788-3-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/4788-6-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4788-11-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4788-4-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4788-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads