modiloader | 4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7

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
17-12-2024 19:59

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General

Target

4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe
Size

90KB
MD5

05018852941d0b9c888c2241db0ee490
SHA1

f47c6c80fb9237c1eba7e6fe8e2c25652fe6f52b
SHA256

4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7
SHA512

69918e0340da1c4837975c2d7573aa728cf3a3e52cb342bf166a2e971e57e29b76c5534d8da996c142f0001863d57826b3cdc2dca99eac5214ef059861169465
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/1736-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1736-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1736-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1736-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe

Executes dropped EXE 3 IoCs

pid	Process
2224	csrsll.exe
4588	csrsll.exe
1736	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-1-5-21-2437139445-1151884604-3026847218-1000\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 2976 set thread context of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2224 set thread context of 4588	2224	csrsll.exe	97
PID 2224 set thread context of 1736	2224	csrsll.exe	98

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2976-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2976-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4984-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4984-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2976-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4984-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023ca3-29.dat	upx
behavioral2/memory/2224-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4984-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2224-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1736-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1736-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1736-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1736-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1736-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2224-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4984-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4588-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1736-62-0x0000000000400000-0x0000000000414000-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	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe
Token: SeDebugPrivilege	4588	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe
4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe
2224	csrsll.exe
4588	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 2976 wrote to memory of 4984	2976	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	83
PID 4984 wrote to memory of 2636	4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	84
PID 4984 wrote to memory of 2636	4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	84
PID 4984 wrote to memory of 2636	4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	84
PID 2636 wrote to memory of 676	2636	cmd.exe	88
PID 2636 wrote to memory of 676	2636	cmd.exe	88
PID 2636 wrote to memory of 676	2636	cmd.exe	88
PID 4984 wrote to memory of 2224	4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	89
PID 4984 wrote to memory of 2224	4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	89
PID 4984 wrote to memory of 2224	4984	4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe	89
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 4588	2224	csrsll.exe	97
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98
PID 2224 wrote to memory of 1736	2224	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe
"C:\Users\Admin\AppData\Local\Temp\4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Users\Admin\AppData\Local\Temp\4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe
  "C:\Users\Admin\AppData\Local\Temp\4449d61455f09d2967272c05cbd7ca81b60e49b4e7771f946620ca0303a562a7N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4984
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KBTLH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - 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:676
- - 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:2224
  - - 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:4588
  - - 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:1736

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\KBTLH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0d9a1096218b507ee82c27507b15d275

SHA1
3b81e150ae6fd99586d87710d1afa8d215a017da

SHA256
5ca3bc16201d664f345fcc25b92c8e1cab594674cc6e5a23e05f42cccdad6421

SHA512
e69e6d859902e8a39e7beaaded2a0e954865a24869773d89046b9be10819f47d227e296e42c9a5ede61b4f8291788bd5c39fd8dec8a492505ce8d8d67451ca5c

Download Submit
memory/1736-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1736-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1736-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1736-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1736-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1736-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2224-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2976-6-0x0000000002940000-0x0000000002942000-memory.dmp

Filesize
8KB

Download
memory/2976-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2976-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2976-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2976-4-0x0000000002920000-0x0000000002922000-memory.dmp

Filesize
8KB

Download
memory/2976-3-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/4588-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads