modiloader | 91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 07:50

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General

Target

91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe
Size

90KB
MD5

172f316c8a32531723abf703b4ebb7cf
SHA1

6a2770a44b43529a32bff0f49d04f8a50d5705df
SHA256

91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302
SHA512

fbdca78ca3cc16b413af7271e6ab398c6127c28c0d57bc6a24327370e5c3dea965ef3aec2c822420fb48e0cd29d2f166d1ddbf6abcce04c51ea9dd1495adae5d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDf:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3N

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/4300-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4300-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4300-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4300-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe

Executes dropped EXE 3 IoCs

pid	Process
1984	csrsll.exe
2328	csrsll.exe
4300	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-1-5-21-4050598569-1597076380-177084960-1000\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 3520 set thread context of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 1984 set thread context of 2328	1984	csrsll.exe	95
PID 1984 set thread context of 4300	1984	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3520-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3520-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3440-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3440-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3520-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3440-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b8c-29.dat	upx
behavioral2/memory/3440-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1984-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1984-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4300-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1984-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4300-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3440-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2328-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4300-62-0x0000000000400000-0x0000000000414000-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	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.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	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe
Token: SeDebugPrivilege	2328	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe
3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe
1984	csrsll.exe
2328	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3520 wrote to memory of 3440	3520	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	87
PID 3440 wrote to memory of 1832	3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	88
PID 3440 wrote to memory of 1832	3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	88
PID 3440 wrote to memory of 1832	3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	88
PID 1832 wrote to memory of 3032	1832	cmd.exe	91
PID 1832 wrote to memory of 3032	1832	cmd.exe	91
PID 1832 wrote to memory of 3032	1832	cmd.exe	91
PID 3440 wrote to memory of 1984	3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	92
PID 3440 wrote to memory of 1984	3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	92
PID 3440 wrote to memory of 1984	3440	91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe	92
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 2328	1984	csrsll.exe	95
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96
PID 1984 wrote to memory of 4300	1984	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe
"C:\Users\Admin\AppData\Local\Temp\91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe
  "C:\Users\Admin\AppData\Local\Temp\91767700c69348150710e4be1a2159616f4558d649eeec2e7f5c82fcdf28d302.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3440
- - 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:1832
  - - 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:3032
- - 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:1984
  - - 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:2328
  - - 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:4300

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\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
0a51eb2343e94c2136d50ac7b95fb038

SHA1
fc639c02823c51e131fa53103382850dc39d59f3

SHA256
f2b30fff8ee9b2e997b7989dc37c72b294bd3752073887fddeaba270a29e734c

SHA512
ce802a2ff55d354499d5ba796504921dfd1acf8e3f3dcfa37e489ae989a8e13fa133352e6298974f169da69dd8d677ed67ccda8551336186d7f64271cfc9d558

Download Submit
memory/1984-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1984-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1984-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2328-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3520-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/3520-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3520-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3520-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3520-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/3520-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4300-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads