modiloader | 94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760

Analysis

max time kernel
119s
max time network
119s
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 14:53

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General

Target

94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe
Size

90KB
MD5

657d41b9ba7d5f9de4a10a90d76d520b
SHA1

1e7c67cb11efd99ccd6f3216cccd95a169f88dc5
SHA256

94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760
SHA512

0b8adc324098ab86f64afddc9b3fc8d6e647ebde836ee5bf8432d567909b9cd122d51cebd81a507b1572de59896307fbd4693c05a28551336c05ef7f041cdfbb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDq:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3o

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/412-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/412-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/412-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/412-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe

Executes dropped EXE 3 IoCs

pid	Process
2528	csrsll.exe
4804	csrsll.exe
412	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-1-5-21-4089630652-1596403869-279772308-1000\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 2228 set thread context of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2528 set thread context of 4804	2528	csrsll.exe	95
PID 2528 set thread context of 412	2528	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2228-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2228-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1480-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1480-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1480-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2228-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b6e-30.dat	upx
behavioral2/memory/1480-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2528-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2528-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/412-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/412-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/412-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/412-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/412-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2528-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1480-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4804-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/412-63-0x0000000000400000-0x0000000000414000-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	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe
1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe
2528	csrsll.exe
4804	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 2228 wrote to memory of 1480	2228	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	82
PID 1480 wrote to memory of 3700	1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	85
PID 1480 wrote to memory of 3700	1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	85
PID 1480 wrote to memory of 3700	1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	85
PID 3700 wrote to memory of 732	3700	cmd.exe	88
PID 3700 wrote to memory of 732	3700	cmd.exe	88
PID 3700 wrote to memory of 732	3700	cmd.exe	88
PID 1480 wrote to memory of 2528	1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	89
PID 1480 wrote to memory of 2528	1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	89
PID 1480 wrote to memory of 2528	1480	94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe	89
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 4804	2528	csrsll.exe	95
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96
PID 2528 wrote to memory of 412	2528	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe
"C:\Users\Admin\AppData\Local\Temp\94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe
  "C:\Users\Admin\AppData\Local\Temp\94b33117f72b32d6682d8398f783d2b7871452488d4656b31adca519ba2c6760.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OTPDQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3700
  - - 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:732
- - 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:2528
  - - 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:4804
  - - 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:412

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\OTPDQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
34742a735994e3ea5a225726f0a14079

SHA1
9322f285374afd801f5be1d1dbd8d2f51e535805

SHA256
98dd6d500675e1e15dbc8d3ee171df86124127e7a50f5aadc3cf3de08de5b369

SHA512
f183658d9bd5e7e27dfe885454054db6d4fed1da75492b0ba41f20f97ceddf9d01691da8b609f89dcf8becbb7115f7c83ed5d120d3ef1ba77b579d40e007b618

Download Submit
memory/412-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/412-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/412-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/412-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/412-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/412-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1480-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1480-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1480-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1480-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1480-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2228-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-6-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/2228-7-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2228-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-4-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/2228-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/2528-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4804-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads