modiloader | 6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31

Analysis

max time kernel
120s
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
23-11-2024 16:13

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General

Target

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe
Size

90KB
MD5

62fecff66d960a40e11a18ce04f1aa10
SHA1

2ee1948fb84298a45388ba83d0502c6e88ab52ca
SHA256

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31
SHA512

cb6dfe5b7b1092baea572a327e3b59cf32e1c1fa24c36d973c5da4751d45b2a2c9b6a050755e785410cf6bc36f8bf9e2039dc0f7beae506ad517e97a558b93b7
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD7:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Z

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

Processes:

resource	yara_rule
behavioral2/memory/3132-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3132-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3132-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3132-62-0x0000000000400000-0x0000000000414000-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

Processes:

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
1020	csrsll.exe
796	csrsll.exe
3132	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.execsrsll.exe

description	pid	Process	procid_target
PID 4860 set thread context of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 1020 set thread context of 796	1020	csrsll.exe	99
PID 1020 set thread context of 3132	1020	csrsll.exe	100

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4860-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4860-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3568-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4860-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb8-29.dat	upx
behavioral2/memory/3568-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1020-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1020-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3132-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3132-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3132-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3132-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3132-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1020-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3568-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/796-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3132-62-0x0000000000400000-0x0000000000414000-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

Processes:

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.execmd.exereg.execsrsll.execsrsll.execsrsll.exe6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.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	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe
Token: SeDebugPrivilege	796	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.execsrsll.execsrsll.exe

pid	Process
4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe
3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe
1020	csrsll.exe
796	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 4860 wrote to memory of 3568	4860	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	90
PID 3568 wrote to memory of 660	3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	94
PID 3568 wrote to memory of 660	3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	94
PID 3568 wrote to memory of 660	3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	94
PID 660 wrote to memory of 4488	660	cmd.exe	97
PID 660 wrote to memory of 4488	660	cmd.exe	97
PID 660 wrote to memory of 4488	660	cmd.exe	97
PID 3568 wrote to memory of 1020	3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	98
PID 3568 wrote to memory of 1020	3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	98
PID 3568 wrote to memory of 1020	3568	6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe	98
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 796	1020	csrsll.exe	99
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100
PID 1020 wrote to memory of 3132	1020	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe
"C:\Users\Admin\AppData\Local\Temp\6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe
  "C:\Users\Admin\AppData\Local\Temp\6480c5db7c9a5bc2963d6b6ad433337f5afb7063bc9f7e10b26492e37868ac31N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JAUVJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:660
  - - 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:4488
- - 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:1020
  - - 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:796
  - - 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:3132

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\JAUVJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5a9178c16be63bd96a65b0f016e65709

SHA1
423c006e31f8795c7672aa2263e9e3a7cf7724a8

SHA256
9bf414e6e98403e66c3d7ca28dac27c640b762c47b8385c126dd2875e7f6a3e3

SHA512
476833460ad33ac6945a787e65c7c2f25e924c27197b46d628a64890441d06d52605a08c1a8e49662937167c2e81250f43c7838919e32fa568d510b5289b0300

Download Submit
memory/796-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1020-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1020-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1020-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3132-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3132-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3132-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3132-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3132-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3132-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3568-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4860-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/4860-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4860-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4860-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4860-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4860-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download