modiloader | 99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2025, 16:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe
Size

90KB
MD5

1483e0b53896b683908281d8a2060fd0
SHA1

2553a9e5459189588683e34dbef7825559e10099
SHA256

99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400
SHA512

4e508e0ff1575481547f5665c9c1772782af8eb616b81d621772f6cededdb6082d3b1f5f5529f51cdfba6c951744b6f45252474bfe752f07f1365429ca1df240
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDN:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE33

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/3592-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3592-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3592-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3592-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe

Executes dropped EXE 3 IoCs

pid	Process
780	csrsll.exe
980	csrsll.exe
3592	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 2032 set thread context of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 780 set thread context of 980	780	csrsll.exe	88
PID 780 set thread context of 3592	780	csrsll.exe	89

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2032-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2032-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1580-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1580-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2032-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1580-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d000000023b9e-29.dat	upx
behavioral2/memory/1580-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/780-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/780-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3592-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3592-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3592-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3592-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3592-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/780-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1580-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/980-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3592-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.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	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe
Token: SeDebugPrivilege	980	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe
1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe
780	csrsll.exe
980	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 2032 wrote to memory of 1580	2032	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	82
PID 1580 wrote to memory of 880	1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	83
PID 1580 wrote to memory of 880	1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	83
PID 1580 wrote to memory of 880	1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	83
PID 880 wrote to memory of 3456	880	cmd.exe	86
PID 880 wrote to memory of 3456	880	cmd.exe	86
PID 880 wrote to memory of 3456	880	cmd.exe	86
PID 1580 wrote to memory of 780	1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	87
PID 1580 wrote to memory of 780	1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	87
PID 1580 wrote to memory of 780	1580	99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe	87
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 980	780	csrsll.exe	88
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89
PID 780 wrote to memory of 3592	780	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe
"C:\Users\Admin\AppData\Local\Temp\99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe
  "C:\Users\Admin\AppData\Local\Temp\99c638d9d5d6b862cc89f76cb111fbb9c522006b581da6875233538c715fd400N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1580
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HRNIY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:880
  - - 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:3456
- - 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:780
  - - 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:980
  - - 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:3592

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\HRNIY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e46ea6bc99f0bdef6ecd87f8dab70364

SHA1
119311a6a3bdd5e758c35714e3fb2e23f025d224

SHA256
dcdafd832884ee069b92fd1389a315901e9f795d6917e4814149214e21b37aa2

SHA512
905b4314883ecdc64c50aac7a8422f25418a8f24fceacb4546c1d9ca42267275292a6b96cc730988bedd129c180500272f5069c41b9c3aeb4c6003289739ecfa

Download Submit
memory/780-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/780-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/780-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/980-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1580-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1580-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1580-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1580-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1580-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1580-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2032-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/2032-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/2032-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3592-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3592-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3592-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3592-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3592-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3592-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads