modiloader | 386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992f

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
10-11-2024 15:32

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General

Target

386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe
Size

90KB
MD5

6f9cee7ba2b5a3b925fb962e55cfb640
SHA1

7bd57bd892c2a8cedecca25ef9d2bb7600943025
SHA256

386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992f
SHA512

fd1933b80be250366ce6eea06586898fa93ac844dc5ceb5f5a47588931b150d355ba7adc0ae2e9fe1738a523a791b12da1c5656ec2c11c10ff5da6ae0b5cb4d0
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/4320-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4320-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4320-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4320-61-0x0000000000400000-0x0000000000414000-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:

386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
1388	csrsll.exe
1892	csrsll.exe
4320	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.execsrsll.exe

description	pid	Process	procid_target
PID 5080 set thread context of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 1388 set thread context of 1892	1388	csrsll.exe	99
PID 1388 set thread context of 4320	1388	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/5080-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5080-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4564-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4564-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5080-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4564-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0011000000023b7b-29.dat	upx
behavioral2/memory/1388-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4564-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1388-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1388-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4320-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4320-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4320-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1388-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4320-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4564-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4320-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1892-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4320-61-0x0000000000400000-0x0000000000414000-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:

csrsll.exe386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.execmd.exereg.execsrsll.execsrsll.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe
Token: SeDebugPrivilege	1892	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.execsrsll.execsrsll.exe

pid	Process
5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe
4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe
1388	csrsll.exe
1892	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 5080 wrote to memory of 4564	5080	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	91
PID 4564 wrote to memory of 1912	4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	92
PID 4564 wrote to memory of 1912	4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	92
PID 4564 wrote to memory of 1912	4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	92
PID 1912 wrote to memory of 1772	1912	cmd.exe	95
PID 1912 wrote to memory of 1772	1912	cmd.exe	95
PID 1912 wrote to memory of 1772	1912	cmd.exe	95
PID 4564 wrote to memory of 1388	4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	96
PID 4564 wrote to memory of 1388	4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	96
PID 4564 wrote to memory of 1388	4564	386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe	96
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 1892	1388	csrsll.exe	99
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100
PID 1388 wrote to memory of 4320	1388	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe
"C:\Users\Admin\AppData\Local\Temp\386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Users\Admin\AppData\Local\Temp\386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe
  "C:\Users\Admin\AppData\Local\Temp\386600290cd60c6d73118c50f8c2864c24cec72bf69fc756f022dec5a059992fN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EIXXK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1912
  - - 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:1772
- - 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:1388
  - - 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:1892
  - - 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:4320

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\EIXXK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
85a7ba1f406f929ed28c85d30f6863a9

SHA1
2008aad2d9d4ab1970a7afed9fe7f738776059d1

SHA256
df93a483fad34ceaa1cb02d36103c8b87481c71ef764fe10c2fd3fb0542c891b

SHA512
a968d7af197dffedeb36f1e59cb3db69707088f06a30b72d99e8af4a4361eaa0cffad02fa7ef253892ad5eeda754eff1144d6137397dbd793612e411593ead33

Download Submit
memory/1388-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1892-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4320-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4564-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4564-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5080-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/5080-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/5080-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download