modiloader | 8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2024 00:21

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General

Target

8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
Size

90KB
MD5

c1c8f1d9e6e7f6e58e042c55f8b70211
SHA1

beb6749b1867ccf67fb126aa468d9a19486d8902
SHA256

8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c
SHA512

1abbe92c1b5a29cc309de4f892090d08a15ecb94d4ba0fc4b79fd0715f77e99f56289ac74a911c9175e8dc146dd2492e4081afc5f38f550e86d12d2e04cc942c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3X

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/2088-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2088-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2088-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2088-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe

Executes dropped EXE 3 IoCs

pid	Process
2608	csrsll.exe
3028	csrsll.exe
2088	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 4408 set thread context of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 2608 set thread context of 3028	2608	csrsll.exe	94
PID 2608 set thread context of 2088	2608	csrsll.exe	95

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4408-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4408-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4348-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4348-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4348-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4408-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b86-29.dat	upx
behavioral2/memory/4348-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2608-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2608-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2088-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2088-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2088-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2088-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2088-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2608-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4348-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3028-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2088-62-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe
Token: SeDebugPrivilege	3028	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
2608	csrsll.exe
3028	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4408 wrote to memory of 4348	4408	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	83
PID 4348 wrote to memory of 1996	4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	84
PID 4348 wrote to memory of 1996	4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	84
PID 4348 wrote to memory of 1996	4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	84
PID 1996 wrote to memory of 436	1996	cmd.exe	87
PID 1996 wrote to memory of 436	1996	cmd.exe	87
PID 1996 wrote to memory of 436	1996	cmd.exe	87
PID 4348 wrote to memory of 2608	4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	88
PID 4348 wrote to memory of 2608	4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	88
PID 4348 wrote to memory of 2608	4348	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	88
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 3028	2608	csrsll.exe	94
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95
PID 2608 wrote to memory of 2088	2608	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
"C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
  "C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TQEQB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1996
  - - 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:436
- - 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:2608
  - - 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:3028
  - - 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:2088

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\TQEQB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
50457a6872c2ad5d34646c1a44b50c97

SHA1
ab3d5a7975695f584baa441d13db14abe2bb4a46

SHA256
8c7430cf4ca514144bb66af3f2c3d6b8f10e58a0272027a33e83be5f8f2bd45d

SHA512
9ca0db48b2c62a366c8b6e300d44f507f8b39ebfe51a465cea3deda6ac4f2aff7715dda44f25885482ba6870e482c0b91e1c72c6f2b6210338e311544ea628da

Download Submit
memory/2088-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2088-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2088-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2088-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2088-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2088-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2608-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2608-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2608-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4348-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4348-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4348-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4348-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4348-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4408-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4408-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4408-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4408-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4408-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4408-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads