modiloader | 765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5

Analysis

max time kernel
119s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16/01/2025, 19:36

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General

Target

765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
Size

90KB
MD5

02bf72f41b388a8ef53f3ad06dd89440
SHA1

2db30c51d22ae0237b5a1b9ca0520512b50c0008
SHA256

765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5
SHA512

8069965b20bcc8f3b8a35b6e7f9cb643d12b2266b7a6a2066ff04f87373bccdf8ee393b47a7034bfc60dfdd2a011c6ee4644052c9d1c647d3d58f7e66113080b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDd:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3b

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/184-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/184-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/184-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/184-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe

Executes dropped EXE 3 IoCs

pid	Process
532	csrsll.exe
4680	csrsll.exe
184	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-1-5-21-2878641211-696417878-3864914810-1000\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 2104 set thread context of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 532 set thread context of 4680	532	csrsll.exe	105
PID 532 set thread context of 184	532	csrsll.exe	106

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2104-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2104-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3844-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3844-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2104-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3844-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3844-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c99-29.dat	upx
behavioral2/memory/3844-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/532-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/532-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/184-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/184-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/184-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/532-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/184-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/184-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3844-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4680-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/184-62-0x0000000000400000-0x0000000000414000-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	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	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe
Token: SeDebugPrivilege	4680	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
532	csrsll.exe
4680	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 2104 wrote to memory of 3844	2104	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	93
PID 3844 wrote to memory of 1540	3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	96
PID 3844 wrote to memory of 1540	3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	96
PID 3844 wrote to memory of 1540	3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	96
PID 1540 wrote to memory of 1920	1540	cmd.exe	100
PID 1540 wrote to memory of 1920	1540	cmd.exe	100
PID 1540 wrote to memory of 1920	1540	cmd.exe	100
PID 3844 wrote to memory of 532	3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	101
PID 3844 wrote to memory of 532	3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	101
PID 3844 wrote to memory of 532	3844	765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe	101
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 4680	532	csrsll.exe	105
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106
PID 532 wrote to memory of 184	532	csrsll.exe	106

C:\Users\Admin\AppData\Local\Temp\765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
"C:\Users\Admin\AppData\Local\Temp\765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe
  "C:\Users\Admin\AppData\Local\Temp\765cff6cd68223c374e0d1b6ad9708740f8e8f431e4fb0576c1b6650ff5f72a5N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3844
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DHCKV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1540
  - - 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:1920
- - 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:532
  - - 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:4680
  - - 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:184

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\DHCKV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5f1d4b3feadfd737a3024d8598a7e0e3

SHA1
496b13c1f422817a17d31e351da7d77ffed7afec

SHA256
17f1214379c1e0959300191762d057a2131d4b5966e0e78886fec0fd921f90e9

SHA512
2720da44e233c08e8c0fac471ca83ee2f5ee64a341fe636623c1aee258fc716d92d37c8a1c05aa753df35ac1ae1f2465d232af31e01b508a1ad81c866b83819b

Download Submit
memory/184-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/184-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/184-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/184-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/184-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/184-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/532-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/532-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/532-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-5-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/2104-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2104-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2104-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/3844-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3844-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3844-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3844-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3844-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3844-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3844-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4680-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads