modiloader | a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53d

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
26-12-2024 16:00

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General

Target

a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe
Size

90KB
MD5

3bb089de376931404f405be396e7e490
SHA1

1a8561a872684b4d108d8710457417c48ae995ab
SHA256

a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53d
SHA512

ee9ebb0e6032058ca82ec813afa538697b99e5de901d1ca906abe9cf1ea0c8d12e2f3cb2194c7803654a4678e3a41e8fb2a6d662f6347aebf0a3405fdec57071
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD4:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3W

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/884-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/884-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/884-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/884-62-0x0000000000400000-0x0000000000414000-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	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe

Executes dropped EXE 3 IoCs

pid	Process
4276	csrsll.exe
544	csrsll.exe
884	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 4280 set thread context of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4276 set thread context of 544	4276	csrsll.exe	102
PID 4276 set thread context of 884	4276	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4280-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4280-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4996-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4280-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c7f-29.dat	upx
behavioral2/memory/4996-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4276-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/884-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4276-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/884-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/884-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/884-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/884-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4276-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4996-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/544-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/884-62-0x0000000000400000-0x0000000000414000-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	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe
Token: SeDebugPrivilege	544	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe
4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe
4276	csrsll.exe
544	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4280 wrote to memory of 4996	4280	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	85
PID 4996 wrote to memory of 4268	4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	90
PID 4996 wrote to memory of 4268	4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	90
PID 4996 wrote to memory of 4268	4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	90
PID 4268 wrote to memory of 208	4268	cmd.exe	94
PID 4268 wrote to memory of 208	4268	cmd.exe	94
PID 4268 wrote to memory of 208	4268	cmd.exe	94
PID 4996 wrote to memory of 4276	4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	95
PID 4996 wrote to memory of 4276	4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	95
PID 4996 wrote to memory of 4276	4996	a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe	95
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 544	4276	csrsll.exe	102
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103
PID 4276 wrote to memory of 884	4276	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe
"C:\Users\Admin\AppData\Local\Temp\a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Users\Admin\AppData\Local\Temp\a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe
  "C:\Users\Admin\AppData\Local\Temp\a9065becd8b0ab17673aabcc594b6ab49b0eba441eb140ff336ed23ab60ca53dN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LCNSL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4268
  - - 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:208
- - 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:4276
  - - 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:544
  - - 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:884

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\LCNSL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
34c65f2266c332582bf67bb7be9065ae

SHA1
e2c3ffb5de80b5c2ac70871abfc86aa9fb507da0

SHA256
3ded0f79136a04051fa972dcbdf4851a0f73de5f983d734402e1f63b759ba15c

SHA512
350c347187c2327ea9028b61d64013d2a97e7c32c3f124eb871cb89b5ba15ab4f01440f79a7c2eb1db15568cd0638b69ef96e79ea29caa40812c0dc153cf6ec1

Download Submit
memory/544-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/884-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/884-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/884-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/884-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/884-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/884-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4276-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4276-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4276-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4280-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4280-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/4280-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4280-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4280-4-0x0000000002C50000-0x0000000002C52000-memory.dmp

Filesize
8KB

Download
memory/4280-6-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/4996-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4996-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads