modiloader | 15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40

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
03-12-2024 11:37

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General

Target

15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe
Size

90KB
MD5

97eed9497ebeaad8c79f042c447a0610
SHA1

9b44ab862e394f21b10d6f151ba822078d2dccb1
SHA256

15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40
SHA512

36e9fb073d88ed78708a4ed96dfcaf187fd8689054d9dcd614f0e2eb0e6a9f995df6f8f305dbf462401c5dcde188d40ee6b2d624fc300d48c2346fc7708ca695
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDQ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3a

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/3396-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3396-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3396-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3396-60-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe

Executes dropped EXE 3 IoCs

pid	Process
4320	csrsll.exe
1172	csrsll.exe
3396	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-1-5-21-493223053-2004649691-1575712786-1000\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 1844 set thread context of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 4320 set thread context of 1172	4320	csrsll.exe	103
PID 4320 set thread context of 3396	4320	csrsll.exe	104

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1844-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1844-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5004-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1844-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5004-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cd6-29.dat	upx
behavioral2/memory/5004-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4320-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3396-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3396-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3396-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3396-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3396-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4320-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5004-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1172-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3396-60-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe
5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe
4320	csrsll.exe
1172	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 1844 wrote to memory of 5004	1844	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	86
PID 5004 wrote to memory of 1944	5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	87
PID 5004 wrote to memory of 1944	5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	87
PID 5004 wrote to memory of 1944	5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	87
PID 1944 wrote to memory of 3152	1944	cmd.exe	91
PID 1944 wrote to memory of 3152	1944	cmd.exe	91
PID 1944 wrote to memory of 3152	1944	cmd.exe	91
PID 5004 wrote to memory of 4320	5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	94
PID 5004 wrote to memory of 4320	5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	94
PID 5004 wrote to memory of 4320	5004	15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe	94
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 1172	4320	csrsll.exe	103
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104
PID 4320 wrote to memory of 3396	4320	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe
"C:\Users\Admin\AppData\Local\Temp\15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1844
- C:\Users\Admin\AppData\Local\Temp\15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe
  "C:\Users\Admin\AppData\Local\Temp\15eaab5cffdd077256ec4c7de507f6d1afc3c31c263c2fee5e34b69adf7ebe40N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SAONI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1944
  - - 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:3152
- - 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:4320
  - - 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:1172
  - - 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:3396

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\SAONI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ba3c7aed5a2ac6cbe735f4548d2781b2

SHA1
8c40fb4ac365d1aa94060c30d2936d289fcca58a

SHA256
c419b293a38b3644e6d6024cc5549f8d0ea2d77d100894103e7a1892b6ba2bb9

SHA512
c2878f0c544d503b7db9717f6b4c97ccfe9db962343ab1f247e3c39bb47e676f05160c2c60c979e9d80094901c8978ac7f6586cd402af0aa44393178985b6447

Download Submit
memory/1172-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1844-3-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/1844-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-5-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/1844-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/1844-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3396-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3396-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3396-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3396-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3396-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3396-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4320-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads