modiloader | cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 02:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe
Size

308KB
MD5

53f6c7ab4809137d42b1ec62b17cd3e2
SHA1

964acfba618642c460a8847440eccb0aa49133bc
SHA256

cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17
SHA512

dc91090a1feed45b07492d981f5c70061f0e4c59e6c15431699ad54001a01a2eae50ca46d1f3905f00629de6cada1be2b5dd726fa7ba346a2f218ef59d4efc7f
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/3688-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3688-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3688-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3688-57-0x0000000000400000-0x0000000000414000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe

Executes dropped EXE 3 IoCs

pid	Process
4904	csrsll.exe
2552	csrsll.exe
3688	csrsll.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1392-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1392-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1392-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3688-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1392-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3688-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2552-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx

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-1-5-21-523280732-2327480845-3730041215-1000\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 3380 set thread context of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 4904 set thread context of 2552	4904	csrsll.exe	96
PID 4904 set thread context of 3688	4904	csrsll.exe	97

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	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe
Token: SeDebugPrivilege	2552	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe
1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe
4904	csrsll.exe
2552	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 3380 wrote to memory of 1392	3380	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	86
PID 1392 wrote to memory of 432	1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	91
PID 1392 wrote to memory of 432	1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	91
PID 1392 wrote to memory of 432	1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	91
PID 432 wrote to memory of 3912	432	cmd.exe	94
PID 432 wrote to memory of 3912	432	cmd.exe	94
PID 432 wrote to memory of 3912	432	cmd.exe	94
PID 1392 wrote to memory of 4904	1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	95
PID 1392 wrote to memory of 4904	1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	95
PID 1392 wrote to memory of 4904	1392	cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe	95
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 2552	4904	csrsll.exe	96
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97
PID 4904 wrote to memory of 3688	4904	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe
"C:\Users\Admin\AppData\Local\Temp\cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe
  "C:\Users\Admin\AppData\Local\Temp\cd17e3928df1916744ae156a8b7c17685096e1c17f8e87b1b2bc11c709c92b17.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1392
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OBNVM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:432
  - - 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:3912
- - 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:4904
  - - 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:2552
  - - 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:3688

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\OBNVM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
308KB

MD5
1338eba8ecb9513a7084c5aa5301f272

SHA1
4686a0573606c88a32d6f8b6174f15a13613fd2e

SHA256
1584b66b3b519ca64295fa4d2df70bf1c4e861e8f6d18a3fc5d0ce29a14ca254

SHA512
291530df05803368aa57d3d81a5aa889e4f1e1843ddf6034fe8870391a9842ca2de97fd067d86c3f30e708e69d3addd0eb7b8b743bc057585a13df29b6e706f4

Download Submit
memory/1392-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3380-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-3-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/3380-4-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/3688-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4904-46-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4904-38-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4904-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4904-34-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads